1e41f4b71Sopenharmony_ci# @ohos.bluetooth.ble (蓝牙ble模块)
2e41f4b71Sopenharmony_ci
3e41f4b71Sopenharmony_cible模块提供了对蓝牙操作和管理的方法。
4e41f4b71Sopenharmony_ci
5e41f4b71Sopenharmony_ci> **说明:**
6e41f4b71Sopenharmony_ci>
7e41f4b71Sopenharmony_ci> 本模块首批接口从API version 10开始支持。后续版本的新增接口,采用上角标单独标记接口的起始版本。
8e41f4b71Sopenharmony_ci
9e41f4b71Sopenharmony_ci
10e41f4b71Sopenharmony_ci
11e41f4b71Sopenharmony_ci## 导入模块
12e41f4b71Sopenharmony_ci
13e41f4b71Sopenharmony_ci```js
14e41f4b71Sopenharmony_ciimport { ble } from '@kit.ConnectivityKit';
15e41f4b71Sopenharmony_ci```
16e41f4b71Sopenharmony_ci
17e41f4b71Sopenharmony_ci
18e41f4b71Sopenharmony_ci## ble.createGattServer<a name="createGattServer"></a>
19e41f4b71Sopenharmony_ci
20e41f4b71Sopenharmony_cicreateGattServer(): GattServer
21e41f4b71Sopenharmony_ci
22e41f4b71Sopenharmony_ci创建GattServer实例。
23e41f4b71Sopenharmony_ci
24e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
25e41f4b71Sopenharmony_ci
26e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core27e41f4b71Sopenharmony_ci
28e41f4b71Sopenharmony_ci**返回值:**
29e41f4b71Sopenharmony_ci
30e41f4b71Sopenharmony_ci| 类型                            | 说明         |
31e41f4b71Sopenharmony_ci| ----------------------------- | ---------- |
32e41f4b71Sopenharmony_ci| [GattServer](#gattserver) | 返回一个Gatt服务的实例。 |
33e41f4b71Sopenharmony_ci
34e41f4b71Sopenharmony_ci**示例:**
35e41f4b71Sopenharmony_ci
36e41f4b71Sopenharmony_ci```js
37e41f4b71Sopenharmony_cilet gattServer: ble.GattServer = ble.createGattServer();
38e41f4b71Sopenharmony_ciconsole.info('gatt success');
39e41f4b71Sopenharmony_ci```
40e41f4b71Sopenharmony_ci
41e41f4b71Sopenharmony_ci
42e41f4b71Sopenharmony_ci## ble.createGattClientDevice<a name="createGattClientDevice"></a>
43e41f4b71Sopenharmony_ci
44e41f4b71Sopenharmony_cicreateGattClientDevice(deviceId: string): GattClientDevice
45e41f4b71Sopenharmony_ci
46e41f4b71Sopenharmony_ci创建一个可使用的GattClientDevice实例。
47e41f4b71Sopenharmony_ci
48e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
49e41f4b71Sopenharmony_ci
50e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core51e41f4b71Sopenharmony_ci
52e41f4b71Sopenharmony_ci**参数:**
53e41f4b71Sopenharmony_ci
54e41f4b71Sopenharmony_ci| 参数名      | 类型     | 必填   | 说明                                   |
55e41f4b71Sopenharmony_ci| -------- | ------ | ---- | ------------------------------------ |
56e41f4b71Sopenharmony_ci| deviceId | string | 是    | 对端设备地址,&nbsp;例如:"XX:XX:XX:XX:XX:XX"。 |
57e41f4b71Sopenharmony_ci
58e41f4b71Sopenharmony_ci**返回值:**
59e41f4b71Sopenharmony_ci
60e41f4b71Sopenharmony_ci| 类型                                    | 说明                                   |
61e41f4b71Sopenharmony_ci| ------------------------------------- | ------------------------------------ |
62e41f4b71Sopenharmony_ci| [GattClientDevice](#gattclientdevice) | client端类,使用client端方法之前需要创建该类的实例进行操作。 |
63e41f4b71Sopenharmony_ci
64e41f4b71Sopenharmony_ci**错误码**:
65e41f4b71Sopenharmony_ci
66e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
67e41f4b71Sopenharmony_ci
68e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
69e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
70e41f4b71Sopenharmony_ci|401 | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verification failed.                 |
71e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
72e41f4b71Sopenharmony_ci
73e41f4b71Sopenharmony_ci**示例:**
74e41f4b71Sopenharmony_ci
75e41f4b71Sopenharmony_ci```js
76e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
77e41f4b71Sopenharmony_citry {
78e41f4b71Sopenharmony_ci    let device: ble.GattClientDevice = ble.createGattClientDevice('XX:XX:XX:XX:XX:XX');
79e41f4b71Sopenharmony_ci} catch (err) {
80e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
81e41f4b71Sopenharmony_ci}
82e41f4b71Sopenharmony_ci```
83e41f4b71Sopenharmony_ci
84e41f4b71Sopenharmony_ci
85e41f4b71Sopenharmony_ci## ble.getConnectedBLEDevices<a name="getConnectedBLEDevices"></a>
86e41f4b71Sopenharmony_ci
87e41f4b71Sopenharmony_cigetConnectedBLEDevices(): Array&lt;string&gt;
88e41f4b71Sopenharmony_ci
89e41f4b71Sopenharmony_ci获取和当前设备连接的BLE设备。
90e41f4b71Sopenharmony_ci
91e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
92e41f4b71Sopenharmony_ci
93e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core94e41f4b71Sopenharmony_ci
95e41f4b71Sopenharmony_ci**返回值:**
96e41f4b71Sopenharmony_ci
97e41f4b71Sopenharmony_ci| 类型                  | 说明                  |
98e41f4b71Sopenharmony_ci| ------------------- | ------------------- |
99e41f4b71Sopenharmony_ci| Array&lt;string&gt; | 返回当前设备作为Server端时连接BLE设备地址集合。基于信息安全考虑,此处获取的设备地址为随机MAC地址。配对成功后,该地址不会变更;已配对设备取消配对后重新扫描或蓝牙服务下电时,该随机地址会变更。 |
100e41f4b71Sopenharmony_ci
101e41f4b71Sopenharmony_ci**错误码**:
102e41f4b71Sopenharmony_ci
103e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
104e41f4b71Sopenharmony_ci
105e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
106e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
107e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
108e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
109e41f4b71Sopenharmony_ci|2900001 | Service stopped.                         |
110e41f4b71Sopenharmony_ci|2900003 | Bluetooth disabled.                 |
111e41f4b71Sopenharmony_ci|2900099 | Operation failed.                        |
112e41f4b71Sopenharmony_ci
113e41f4b71Sopenharmony_ci**示例:**
114e41f4b71Sopenharmony_ci
115e41f4b71Sopenharmony_ci```js
116e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
117e41f4b71Sopenharmony_citry {
118e41f4b71Sopenharmony_ci    let result: Array<string> = ble.getConnectedBLEDevices();
119e41f4b71Sopenharmony_ci} catch (err) {
120e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
121e41f4b71Sopenharmony_ci}
122e41f4b71Sopenharmony_ci```
123e41f4b71Sopenharmony_ci
124e41f4b71Sopenharmony_ci
125e41f4b71Sopenharmony_ci## ble.startBLEScan<a name="startBLEScan"></a>
126e41f4b71Sopenharmony_ci
127e41f4b71Sopenharmony_cistartBLEScan(filters: Array&lt;ScanFilter&gt;, options?: ScanOptions): void
128e41f4b71Sopenharmony_ci
129e41f4b71Sopenharmony_ci发起BLE扫描流程。
130e41f4b71Sopenharmony_ci
131e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
132e41f4b71Sopenharmony_ci
133e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
134e41f4b71Sopenharmony_ci
135e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core136e41f4b71Sopenharmony_ci
137e41f4b71Sopenharmony_ci**参数:**
138e41f4b71Sopenharmony_ci
139e41f4b71Sopenharmony_ci| 参数名     | 类型                                     | 必填   | 说明                                  |
140e41f4b71Sopenharmony_ci| ------- | -------------------------------------- | ---- | ----------------------------------- |
141e41f4b71Sopenharmony_ci| filters | Array&lt;[ScanFilter](#scanfilter)&gt; | 是    | 表示扫描结果过滤策略集合,符合过滤条件的设备发现会保留。如果不使用过滤的方式,该参数设置为null。 |
142e41f4b71Sopenharmony_ci| options | [ScanOptions](#scanoptions)            | 否    | 表示扫描的参数配置,可选参数。                     |
143e41f4b71Sopenharmony_ci
144e41f4b71Sopenharmony_ci**错误码**:
145e41f4b71Sopenharmony_ci
146e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
147e41f4b71Sopenharmony_ci
148e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
149e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
150e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
151e41f4b71Sopenharmony_ci|401 | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verification failed.                 |
152e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
153e41f4b71Sopenharmony_ci|2900001 | Service stopped.                         |
154e41f4b71Sopenharmony_ci|2900003 | Bluetooth disabled.                 |
155e41f4b71Sopenharmony_ci|2900099 | Operation failed.                        |
156e41f4b71Sopenharmony_ci
157e41f4b71Sopenharmony_ci**示例:**
158e41f4b71Sopenharmony_ci
159e41f4b71Sopenharmony_ci```js
160e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
161e41f4b71Sopenharmony_cifunction onReceiveEvent(data: Array<ble.ScanResult>) {
162e41f4b71Sopenharmony_ci    console.info('BLE scan device find result = '+ JSON.stringify(data));
163e41f4b71Sopenharmony_ci}
164e41f4b71Sopenharmony_citry {
165e41f4b71Sopenharmony_ci    ble.on("BLEDeviceFind", onReceiveEvent);
166e41f4b71Sopenharmony_ci    let scanFilter: ble.ScanFilter = {
167e41f4b71Sopenharmony_ci            deviceId:"XX:XX:XX:XX:XX:XX",
168e41f4b71Sopenharmony_ci            name:"test",
169e41f4b71Sopenharmony_ci            serviceUuid:"00001888-0000-1000-8000-00805f9b34fb"
170e41f4b71Sopenharmony_ci        };
171e41f4b71Sopenharmony_ci    let scanOptions: ble.ScanOptions = {
172e41f4b71Sopenharmony_ci    interval: 500,
173e41f4b71Sopenharmony_ci    dutyMode: ble.ScanDuty.SCAN_MODE_LOW_POWER,
174e41f4b71Sopenharmony_ci    matchMode: ble.MatchMode.MATCH_MODE_AGGRESSIVE
175e41f4b71Sopenharmony_ci    }
176e41f4b71Sopenharmony_ci    ble.startBLEScan([scanFilter],scanOptions);
177e41f4b71Sopenharmony_ci} catch (err) {
178e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
179e41f4b71Sopenharmony_ci}
180e41f4b71Sopenharmony_ci```
181e41f4b71Sopenharmony_ci
182e41f4b71Sopenharmony_ci
183e41f4b71Sopenharmony_ci## ble.stopBLEScan<a name="stopBLEScan"></a>
184e41f4b71Sopenharmony_ci
185e41f4b71Sopenharmony_cistopBLEScan(): void
186e41f4b71Sopenharmony_ci
187e41f4b71Sopenharmony_ci停止BLE扫描流程。
188e41f4b71Sopenharmony_ci
189e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
190e41f4b71Sopenharmony_ci
191e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
192e41f4b71Sopenharmony_ci
193e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core194e41f4b71Sopenharmony_ci
195e41f4b71Sopenharmony_ci**错误码**:
196e41f4b71Sopenharmony_ci
197e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
198e41f4b71Sopenharmony_ci
199e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
200e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
201e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
202e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
203e41f4b71Sopenharmony_ci|2900001 | Service stopped.                         |
204e41f4b71Sopenharmony_ci|2900003 | Bluetooth disabled.                 |
205e41f4b71Sopenharmony_ci|2900099 | Operation failed.                        |
206e41f4b71Sopenharmony_ci
207e41f4b71Sopenharmony_ci**示例:**
208e41f4b71Sopenharmony_ci
209e41f4b71Sopenharmony_ci```js
210e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
211e41f4b71Sopenharmony_citry {
212e41f4b71Sopenharmony_ci    ble.stopBLEScan();
213e41f4b71Sopenharmony_ci} catch (err) {
214e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
215e41f4b71Sopenharmony_ci}
216e41f4b71Sopenharmony_ci```
217e41f4b71Sopenharmony_ci
218e41f4b71Sopenharmony_ci
219e41f4b71Sopenharmony_ci## ble.startAdvertising<a name="startAdvertising"></a>
220e41f4b71Sopenharmony_ci
221e41f4b71Sopenharmony_cistartAdvertising(setting: AdvertiseSetting, advData: AdvertiseData, advResponse?: AdvertiseData): void
222e41f4b71Sopenharmony_ci
223e41f4b71Sopenharmony_ci开始发送BLE广播。
224e41f4b71Sopenharmony_ci
225e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
226e41f4b71Sopenharmony_ci
227e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
228e41f4b71Sopenharmony_ci
229e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core230e41f4b71Sopenharmony_ci
231e41f4b71Sopenharmony_ci**参数:**
232e41f4b71Sopenharmony_ci
233e41f4b71Sopenharmony_ci| 参数名         | 类型                                    | 必填   | 说明             |
234e41f4b71Sopenharmony_ci| ----------- | ------------------------------------- | ---- | -------------- |
235e41f4b71Sopenharmony_ci| setting     | [AdvertiseSetting](#advertisesetting) | 是    | BLE广播的相关参数。    |
236e41f4b71Sopenharmony_ci| advData     | [AdvertiseData](#advertisedata)       | 是    | BLE广播包内容。      |
237e41f4b71Sopenharmony_ci| advResponse | [AdvertiseData](#advertisedata)       | 否    | BLE回复扫描请求回复响应。 |
238e41f4b71Sopenharmony_ci
239e41f4b71Sopenharmony_ci**错误码**:
240e41f4b71Sopenharmony_ci
241e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
242e41f4b71Sopenharmony_ci
243e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
244e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
245e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
246e41f4b71Sopenharmony_ci|401 | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verification failed.                 |
247e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
248e41f4b71Sopenharmony_ci|2900001 | Service stopped.                         |
249e41f4b71Sopenharmony_ci|2900003 | Bluetooth disabled.                 |
250e41f4b71Sopenharmony_ci|2900099 | Operation failed.                        |
251e41f4b71Sopenharmony_ci
252e41f4b71Sopenharmony_ci**示例:**
253e41f4b71Sopenharmony_ci
254e41f4b71Sopenharmony_ci```js
255e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
256e41f4b71Sopenharmony_cilet manufactureValueBuffer = new Uint8Array(4);
257e41f4b71Sopenharmony_cimanufactureValueBuffer[0] = 1;
258e41f4b71Sopenharmony_cimanufactureValueBuffer[1] = 2;
259e41f4b71Sopenharmony_cimanufactureValueBuffer[2] = 3;
260e41f4b71Sopenharmony_cimanufactureValueBuffer[3] = 4;
261e41f4b71Sopenharmony_ci
262e41f4b71Sopenharmony_cilet serviceValueBuffer = new Uint8Array(4);
263e41f4b71Sopenharmony_ciserviceValueBuffer[0] = 4;
264e41f4b71Sopenharmony_ciserviceValueBuffer[1] = 6;
265e41f4b71Sopenharmony_ciserviceValueBuffer[2] = 7;
266e41f4b71Sopenharmony_ciserviceValueBuffer[3] = 8;
267e41f4b71Sopenharmony_ciconsole.info('manufactureValueBuffer = '+ JSON.stringify(manufactureValueBuffer));
268e41f4b71Sopenharmony_ciconsole.info('serviceValueBuffer = '+ JSON.stringify(serviceValueBuffer));
269e41f4b71Sopenharmony_citry {
270e41f4b71Sopenharmony_ci    let setting: ble.AdvertiseSetting = {
271e41f4b71Sopenharmony_ci        interval:150,
272e41f4b71Sopenharmony_ci        txPower:0,
273e41f4b71Sopenharmony_ci        connectable:true
274e41f4b71Sopenharmony_ci    };
275e41f4b71Sopenharmony_ci    let manufactureDataUnit: ble.ManufactureData = {
276e41f4b71Sopenharmony_ci        manufactureId:4567,
277e41f4b71Sopenharmony_ci        manufactureValue:manufactureValueBuffer.buffer
278e41f4b71Sopenharmony_ci    };
279e41f4b71Sopenharmony_ci    let serviceDataUnit: ble.ServiceData = {
280e41f4b71Sopenharmony_ci        serviceUuid:"00001888-0000-1000-8000-00805f9b34fb",
281e41f4b71Sopenharmony_ci        serviceValue:serviceValueBuffer.buffer
282e41f4b71Sopenharmony_ci    };
283e41f4b71Sopenharmony_ci    let advData: ble.AdvertiseData = {
284e41f4b71Sopenharmony_ci        serviceUuids:["00001888-0000-1000-8000-00805f9b34fb"],
285e41f4b71Sopenharmony_ci        manufactureData:[manufactureDataUnit],
286e41f4b71Sopenharmony_ci        serviceData:[serviceDataUnit]
287e41f4b71Sopenharmony_ci    };
288e41f4b71Sopenharmony_ci    let advResponse: ble.AdvertiseData = {
289e41f4b71Sopenharmony_ci        serviceUuids:["00001888-0000-1000-8000-00805f9b34fb"],
290e41f4b71Sopenharmony_ci        manufactureData:[manufactureDataUnit],
291e41f4b71Sopenharmony_ci        serviceData:[serviceDataUnit]
292e41f4b71Sopenharmony_ci    };
293e41f4b71Sopenharmony_ci    ble.startAdvertising(setting, advData ,advResponse);
294e41f4b71Sopenharmony_ci} catch (err) {
295e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
296e41f4b71Sopenharmony_ci}
297e41f4b71Sopenharmony_ci```
298e41f4b71Sopenharmony_ci
299e41f4b71Sopenharmony_ci
300e41f4b71Sopenharmony_ci## ble.stopAdvertising<a name="stopAdvertising"></a>
301e41f4b71Sopenharmony_ci
302e41f4b71Sopenharmony_cistopAdvertising(): void
303e41f4b71Sopenharmony_ci
304e41f4b71Sopenharmony_ci停止发送BLE广播。
305e41f4b71Sopenharmony_ci
306e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
307e41f4b71Sopenharmony_ci
308e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
309e41f4b71Sopenharmony_ci
310e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core311e41f4b71Sopenharmony_ci
312e41f4b71Sopenharmony_ci**错误码**:
313e41f4b71Sopenharmony_ci
314e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
315e41f4b71Sopenharmony_ci
316e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
317e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
318e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
319e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
320e41f4b71Sopenharmony_ci|2900001 | Service stopped.                         |
321e41f4b71Sopenharmony_ci|2900003 | Bluetooth disabled.                 |
322e41f4b71Sopenharmony_ci|2900099 | Operation failed.                        |
323e41f4b71Sopenharmony_ci
324e41f4b71Sopenharmony_ci**示例:**
325e41f4b71Sopenharmony_ci
326e41f4b71Sopenharmony_ci```js
327e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
328e41f4b71Sopenharmony_citry {
329e41f4b71Sopenharmony_ci    ble.stopAdvertising();
330e41f4b71Sopenharmony_ci} catch (err) {
331e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
332e41f4b71Sopenharmony_ci}
333e41f4b71Sopenharmony_ci```
334e41f4b71Sopenharmony_ci
335e41f4b71Sopenharmony_ci
336e41f4b71Sopenharmony_ci## ble.startAdvertising<sup>11+</sup><a name="startAdvertising"></a>
337e41f4b71Sopenharmony_ci
338e41f4b71Sopenharmony_cistartAdvertising(advertisingParams: AdvertisingParams, callback: AsyncCallback&lt;number&gt;): void
339e41f4b71Sopenharmony_ci
340e41f4b71Sopenharmony_ci开始发送BLE广播。使用Callback异步回调。
341e41f4b71Sopenharmony_ci
342e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
343e41f4b71Sopenharmony_ci
344e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core345e41f4b71Sopenharmony_ci
346e41f4b71Sopenharmony_ci**参数:**
347e41f4b71Sopenharmony_ci
348e41f4b71Sopenharmony_ci| 参数名               | 类型                                    | 必填  | 说明                             |
349e41f4b71Sopenharmony_ci| ------------------- | --------------------------------------- | ----- | ------------------------------- |
350e41f4b71Sopenharmony_ci| advertisingParams   | [AdvertisingParams](#advertisingparams11) | 是    | 启动BLE广播的相关参数。           |
351e41f4b71Sopenharmony_ci| callback            | AsyncCallback&lt;number&gt;             | 是    | 广播ID标识,通过注册回调函数获取。 |
352e41f4b71Sopenharmony_ci
353e41f4b71Sopenharmony_ci**错误码**:
354e41f4b71Sopenharmony_ci
355e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
356e41f4b71Sopenharmony_ci
357e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
358e41f4b71Sopenharmony_ci| -------- | -------------------------------------- |
359e41f4b71Sopenharmony_ci|201     | Permission denied.                       |
360e41f4b71Sopenharmony_ci|401     | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verification failed.                       |
361e41f4b71Sopenharmony_ci|801     | Capability not supported.                |
362e41f4b71Sopenharmony_ci|2900001 | Service stopped.                         |
363e41f4b71Sopenharmony_ci|2900003 | Bluetooth disabled.                 |
364e41f4b71Sopenharmony_ci|2900099 | Operation failed.                        |
365e41f4b71Sopenharmony_ci
366e41f4b71Sopenharmony_ci**示例:**
367e41f4b71Sopenharmony_ci
368e41f4b71Sopenharmony_ci```js
369e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
370e41f4b71Sopenharmony_cilet manufactureValueBuffer = new Uint8Array(4);
371e41f4b71Sopenharmony_cimanufactureValueBuffer[0] = 1;
372e41f4b71Sopenharmony_cimanufactureValueBuffer[1] = 2;
373e41f4b71Sopenharmony_cimanufactureValueBuffer[2] = 3;
374e41f4b71Sopenharmony_cimanufactureValueBuffer[3] = 4;
375e41f4b71Sopenharmony_ci
376e41f4b71Sopenharmony_cilet serviceValueBuffer = new Uint8Array(4);
377e41f4b71Sopenharmony_ciserviceValueBuffer[0] = 4;
378e41f4b71Sopenharmony_ciserviceValueBuffer[1] = 6;
379e41f4b71Sopenharmony_ciserviceValueBuffer[2] = 7;
380e41f4b71Sopenharmony_ciserviceValueBuffer[3] = 8;
381e41f4b71Sopenharmony_ciconsole.info('manufactureValueBuffer = '+ JSON.stringify(manufactureValueBuffer));
382e41f4b71Sopenharmony_ciconsole.info('serviceValueBuffer = '+ JSON.stringify(serviceValueBuffer));
383e41f4b71Sopenharmony_citry {
384e41f4b71Sopenharmony_ci    let setting: ble.AdvertiseSetting = {
385e41f4b71Sopenharmony_ci        interval:150,
386e41f4b71Sopenharmony_ci        txPower:0,
387e41f4b71Sopenharmony_ci        connectable:true,
388e41f4b71Sopenharmony_ci    };
389e41f4b71Sopenharmony_ci    let manufactureDataUnit: ble.ManufactureData = {
390e41f4b71Sopenharmony_ci        manufactureId:4567,
391e41f4b71Sopenharmony_ci        manufactureValue:manufactureValueBuffer.buffer
392e41f4b71Sopenharmony_ci    };
393e41f4b71Sopenharmony_ci    let serviceDataUnit: ble.ServiceData = {
394e41f4b71Sopenharmony_ci        serviceUuid:"00001888-0000-1000-8000-00805f9b34fb",
395e41f4b71Sopenharmony_ci        serviceValue:serviceValueBuffer.buffer
396e41f4b71Sopenharmony_ci    };
397e41f4b71Sopenharmony_ci    let advData: ble.AdvertiseData = {
398e41f4b71Sopenharmony_ci        serviceUuids:["00001888-0000-1000-8000-00805f9b34fb"],
399e41f4b71Sopenharmony_ci        manufactureData:[manufactureDataUnit],
400e41f4b71Sopenharmony_ci        serviceData:[serviceDataUnit]
401e41f4b71Sopenharmony_ci    };
402e41f4b71Sopenharmony_ci    let advResponse: ble.AdvertiseData = {
403e41f4b71Sopenharmony_ci        serviceUuids:["00001888-0000-1000-8000-00805f9b34fb"],
404e41f4b71Sopenharmony_ci        manufactureData:[manufactureDataUnit],
405e41f4b71Sopenharmony_ci        serviceData:[serviceDataUnit]
406e41f4b71Sopenharmony_ci    };
407e41f4b71Sopenharmony_ci    let advertisingParams: ble.AdvertisingParams = {
408e41f4b71Sopenharmony_ci        advertisingSettings: setting,
409e41f4b71Sopenharmony_ci        advertisingData: advData,
410e41f4b71Sopenharmony_ci        advertisingResponse: advResponse,
411e41f4b71Sopenharmony_ci        duration: 0
412e41f4b71Sopenharmony_ci    }
413e41f4b71Sopenharmony_ci    let advHandle = 0xFF;
414e41f4b71Sopenharmony_ci    ble.startAdvertising(advertisingParams, (err, outAdvHandle) => {
415e41f4b71Sopenharmony_ci        if (err) {
416e41f4b71Sopenharmony_ci            return;
417e41f4b71Sopenharmony_ci        } else {
418e41f4b71Sopenharmony_ci            advHandle = outAdvHandle;
419e41f4b71Sopenharmony_ci            console.info("advHandle: " + advHandle);
420e41f4b71Sopenharmony_ci        }
421e41f4b71Sopenharmony_ci    });
422e41f4b71Sopenharmony_ci} catch (err) {
423e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
424e41f4b71Sopenharmony_ci}
425e41f4b71Sopenharmony_ci```
426e41f4b71Sopenharmony_ci
427e41f4b71Sopenharmony_ci
428e41f4b71Sopenharmony_ci## ble.startAdvertising<sup>11+</sup><a name="startAdvertising"></a>
429e41f4b71Sopenharmony_ci
430e41f4b71Sopenharmony_cistartAdvertising(advertisingParams: AdvertisingParams): Promise&lt;number&gt;
431e41f4b71Sopenharmony_ci
432e41f4b71Sopenharmony_ci开始发送BLE广播。使用Promise异步回调。
433e41f4b71Sopenharmony_ci
434e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
435e41f4b71Sopenharmony_ci
436e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core437e41f4b71Sopenharmony_ci
438e41f4b71Sopenharmony_ci**参数:**
439e41f4b71Sopenharmony_ci
440e41f4b71Sopenharmony_ci| 参数名               | 类型                                   | 必填  | 说明                    |
441e41f4b71Sopenharmony_ci| ------------------- | -------------------------------------- | ----- | ----------------------- |
442e41f4b71Sopenharmony_ci| advertisingParams   | [AdvertisingParams](#advertisingparams11) | 是    | 启动BLE广播的相关参数。  |
443e41f4b71Sopenharmony_ci
444e41f4b71Sopenharmony_ci**返回值:**
445e41f4b71Sopenharmony_ci
446e41f4b71Sopenharmony_ci| 类型                       | 说明                            |
447e41f4b71Sopenharmony_ci| -------------------------- | ------------------------------- |
448e41f4b71Sopenharmony_ci| Promise&lt;number&gt;      | 广播ID标识,通过promise形式获取。 |
449e41f4b71Sopenharmony_ci
450e41f4b71Sopenharmony_ci**错误码**:
451e41f4b71Sopenharmony_ci
452e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
453e41f4b71Sopenharmony_ci
454e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
455e41f4b71Sopenharmony_ci| -------- | -------------------------------------- |
456e41f4b71Sopenharmony_ci|201     | Permission denied.                       |
457e41f4b71Sopenharmony_ci|401     | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verification failed.                       |
458e41f4b71Sopenharmony_ci|801     | Capability not supported.                |
459e41f4b71Sopenharmony_ci|2900001 | Service stopped.                         |
460e41f4b71Sopenharmony_ci|2900003 | Bluetooth disabled.                 |
461e41f4b71Sopenharmony_ci|2900099 | Operation failed.                        |
462e41f4b71Sopenharmony_ci
463e41f4b71Sopenharmony_ci**示例:**
464e41f4b71Sopenharmony_ci
465e41f4b71Sopenharmony_ci```js
466e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
467e41f4b71Sopenharmony_cilet manufactureValueBuffer = new Uint8Array(4);
468e41f4b71Sopenharmony_cimanufactureValueBuffer[0] = 1;
469e41f4b71Sopenharmony_cimanufactureValueBuffer[1] = 2;
470e41f4b71Sopenharmony_cimanufactureValueBuffer[2] = 3;
471e41f4b71Sopenharmony_cimanufactureValueBuffer[3] = 4;
472e41f4b71Sopenharmony_ci
473e41f4b71Sopenharmony_cilet serviceValueBuffer = new Uint8Array(4);
474e41f4b71Sopenharmony_ciserviceValueBuffer[0] = 4;
475e41f4b71Sopenharmony_ciserviceValueBuffer[1] = 6;
476e41f4b71Sopenharmony_ciserviceValueBuffer[2] = 7;
477e41f4b71Sopenharmony_ciserviceValueBuffer[3] = 8;
478e41f4b71Sopenharmony_ciconsole.info('manufactureValueBuffer = '+ JSON.stringify(manufactureValueBuffer));
479e41f4b71Sopenharmony_ciconsole.info('serviceValueBuffer = '+ JSON.stringify(serviceValueBuffer));
480e41f4b71Sopenharmony_citry {
481e41f4b71Sopenharmony_ci    let setting: ble.AdvertiseSetting = {
482e41f4b71Sopenharmony_ci        interval:150,
483e41f4b71Sopenharmony_ci        txPower:0,
484e41f4b71Sopenharmony_ci        connectable:true
485e41f4b71Sopenharmony_ci    };
486e41f4b71Sopenharmony_ci    let manufactureDataUnit: ble.ManufactureData = {
487e41f4b71Sopenharmony_ci        manufactureId:4567,
488e41f4b71Sopenharmony_ci        manufactureValue:manufactureValueBuffer.buffer
489e41f4b71Sopenharmony_ci    };
490e41f4b71Sopenharmony_ci    let serviceDataUnit: ble.ServiceData = {
491e41f4b71Sopenharmony_ci        serviceUuid:"00001888-0000-1000-8000-00805f9b34fb",
492e41f4b71Sopenharmony_ci        serviceValue:serviceValueBuffer.buffer
493e41f4b71Sopenharmony_ci    };
494e41f4b71Sopenharmony_ci    let advData: ble.AdvertiseData = {
495e41f4b71Sopenharmony_ci        serviceUuids:["00001888-0000-1000-8000-00805f9b34fb"],
496e41f4b71Sopenharmony_ci        manufactureData:[manufactureDataUnit],
497e41f4b71Sopenharmony_ci        serviceData:[serviceDataUnit]
498e41f4b71Sopenharmony_ci    };
499e41f4b71Sopenharmony_ci    let advResponse: ble.AdvertiseData = {
500e41f4b71Sopenharmony_ci        serviceUuids:["00001888-0000-1000-8000-00805f9b34fb"],
501e41f4b71Sopenharmony_ci        manufactureData:[manufactureDataUnit],
502e41f4b71Sopenharmony_ci        serviceData:[serviceDataUnit]
503e41f4b71Sopenharmony_ci    };
504e41f4b71Sopenharmony_ci    let advertisingParams: ble.AdvertisingParams = {
505e41f4b71Sopenharmony_ci        advertisingSettings: setting,
506e41f4b71Sopenharmony_ci        advertisingData: advData,
507e41f4b71Sopenharmony_ci        advertisingResponse: advResponse,
508e41f4b71Sopenharmony_ci        duration: 0
509e41f4b71Sopenharmony_ci    }
510e41f4b71Sopenharmony_ci    let advHandle = 0xFF;
511e41f4b71Sopenharmony_ci    ble.startAdvertising(advertisingParams)
512e41f4b71Sopenharmony_ci        .then(outAdvHandle => {
513e41f4b71Sopenharmony_ci            advHandle = outAdvHandle;
514e41f4b71Sopenharmony_ci    });
515e41f4b71Sopenharmony_ci} catch (err) {
516e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
517e41f4b71Sopenharmony_ci}
518e41f4b71Sopenharmony_ci```
519e41f4b71Sopenharmony_ci
520e41f4b71Sopenharmony_ci
521e41f4b71Sopenharmony_ci## ble.enableAdvertising<sup>11+</sup><a name="enableAdvertising"></a>
522e41f4b71Sopenharmony_ci
523e41f4b71Sopenharmony_cienableAdvertising(advertisingEnableParams: AdvertisingEnableParams, callback: AsyncCallback&lt;void&gt;): void
524e41f4b71Sopenharmony_ci
525e41f4b71Sopenharmony_ci临时启动BLE广播。使用Callback异步回调。
526e41f4b71Sopenharmony_ci
527e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
528e41f4b71Sopenharmony_ci
529e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core530e41f4b71Sopenharmony_ci
531e41f4b71Sopenharmony_ci**参数:**
532e41f4b71Sopenharmony_ci
533e41f4b71Sopenharmony_ci| 参数名                    | 类型                                                 | 必填  | 说明                             |
534e41f4b71Sopenharmony_ci| ------------------------- | --------------------------------------------------- | ----- | ------------------------------- |
535e41f4b71Sopenharmony_ci| advertisingEnableParams   | [AdvertisingEnableParams](#advertisingenableparams11) | 是    | 临时启动BLE广播的相关参数。        |
536e41f4b71Sopenharmony_ci| callback                  | AsyncCallback&lt;void&gt;                           | 是    | 回调函数。                        |
537e41f4b71Sopenharmony_ci
538e41f4b71Sopenharmony_ci**错误码**:
539e41f4b71Sopenharmony_ci
540e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
541e41f4b71Sopenharmony_ci
542e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
543e41f4b71Sopenharmony_ci| ------- | -------------------------------------- |
544e41f4b71Sopenharmony_ci|201     | Permission denied.                       |
545e41f4b71Sopenharmony_ci|401     | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types.                     |
546e41f4b71Sopenharmony_ci|801     | Capability not supported.                |
547e41f4b71Sopenharmony_ci|2900001 | Service stopped.                         |
548e41f4b71Sopenharmony_ci|2900003 | Bluetooth disabled.                 |
549e41f4b71Sopenharmony_ci|2900099 | Operation failed.                        |
550e41f4b71Sopenharmony_ci
551e41f4b71Sopenharmony_ci**示例:**
552e41f4b71Sopenharmony_ci
553e41f4b71Sopenharmony_ci```js
554e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
555e41f4b71Sopenharmony_cilet manufactureValueBuffer = new Uint8Array(4);
556e41f4b71Sopenharmony_cimanufactureValueBuffer[0] = 1;
557e41f4b71Sopenharmony_cimanufactureValueBuffer[1] = 2;
558e41f4b71Sopenharmony_cimanufactureValueBuffer[2] = 3;
559e41f4b71Sopenharmony_cimanufactureValueBuffer[3] = 4;
560e41f4b71Sopenharmony_ci
561e41f4b71Sopenharmony_cilet serviceValueBuffer = new Uint8Array(4);
562e41f4b71Sopenharmony_ciserviceValueBuffer[0] = 4;
563e41f4b71Sopenharmony_ciserviceValueBuffer[1] = 6;
564e41f4b71Sopenharmony_ciserviceValueBuffer[2] = 7;
565e41f4b71Sopenharmony_ciserviceValueBuffer[3] = 8;
566e41f4b71Sopenharmony_ciconsole.info('manufactureValueBuffer = '+ JSON.stringify(manufactureValueBuffer));
567e41f4b71Sopenharmony_ciconsole.info('serviceValueBuffer = '+ JSON.stringify(serviceValueBuffer));
568e41f4b71Sopenharmony_citry {
569e41f4b71Sopenharmony_ci    let setting: ble.AdvertiseSetting = {
570e41f4b71Sopenharmony_ci        interval:150,
571e41f4b71Sopenharmony_ci        txPower:0,
572e41f4b71Sopenharmony_ci        connectable:true
573e41f4b71Sopenharmony_ci    };
574e41f4b71Sopenharmony_ci    let manufactureDataUnit: ble.ManufactureData = {
575e41f4b71Sopenharmony_ci        manufactureId:4567,
576e41f4b71Sopenharmony_ci        manufactureValue:manufactureValueBuffer.buffer
577e41f4b71Sopenharmony_ci    };
578e41f4b71Sopenharmony_ci    let serviceDataUnit: ble.ServiceData = {
579e41f4b71Sopenharmony_ci        serviceUuid:"00001888-0000-1000-8000-00805f9b34fb",
580e41f4b71Sopenharmony_ci        serviceValue:serviceValueBuffer.buffer
581e41f4b71Sopenharmony_ci    };
582e41f4b71Sopenharmony_ci    let advData: ble.AdvertiseData = {
583e41f4b71Sopenharmony_ci        serviceUuids:["00001888-0000-1000-8000-00805f9b34fb"],
584e41f4b71Sopenharmony_ci        manufactureData:[manufactureDataUnit],
585e41f4b71Sopenharmony_ci        serviceData:[serviceDataUnit]
586e41f4b71Sopenharmony_ci    };
587e41f4b71Sopenharmony_ci    let advResponse: ble.AdvertiseData = {
588e41f4b71Sopenharmony_ci        serviceUuids:["00001888-0000-1000-8000-00805f9b34fb"],
589e41f4b71Sopenharmony_ci        manufactureData:[manufactureDataUnit],
590e41f4b71Sopenharmony_ci        serviceData:[serviceDataUnit]
591e41f4b71Sopenharmony_ci    };
592e41f4b71Sopenharmony_ci    let advertisingParams: ble.AdvertisingParams = {
593e41f4b71Sopenharmony_ci        advertisingSettings: setting,
594e41f4b71Sopenharmony_ci        advertisingData: advData,
595e41f4b71Sopenharmony_ci        advertisingResponse: advResponse,
596e41f4b71Sopenharmony_ci        duration: 300
597e41f4b71Sopenharmony_ci    }
598e41f4b71Sopenharmony_ci    let advHandle = 0xFF;
599e41f4b71Sopenharmony_ci    ble.startAdvertising(advertisingParams, (err, outAdvHandle) => {
600e41f4b71Sopenharmony_ci        if (err) {
601e41f4b71Sopenharmony_ci            return;
602e41f4b71Sopenharmony_ci        } else {
603e41f4b71Sopenharmony_ci            advHandle = outAdvHandle;
604e41f4b71Sopenharmony_ci            console.info("advHandle: " + advHandle);
605e41f4b71Sopenharmony_ci        }
606e41f4b71Sopenharmony_ci    });
607e41f4b71Sopenharmony_ci
608e41f4b71Sopenharmony_ci    let advertisingEnableParams: ble.AdvertisingEnableParams = {
609e41f4b71Sopenharmony_ci        advertisingId: advHandle,
610e41f4b71Sopenharmony_ci        duration: 0
611e41f4b71Sopenharmony_ci    }
612e41f4b71Sopenharmony_ci
613e41f4b71Sopenharmony_ci    // after 3s, advertising disabled, then enable the advertising
614e41f4b71Sopenharmony_ci    ble.enableAdvertising(advertisingEnableParams, (err) => {
615e41f4b71Sopenharmony_ci        if (err) {
616e41f4b71Sopenharmony_ci            return;
617e41f4b71Sopenharmony_ci        }
618e41f4b71Sopenharmony_ci    });
619e41f4b71Sopenharmony_ci} catch (err) {
620e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
621e41f4b71Sopenharmony_ci}
622e41f4b71Sopenharmony_ci```
623e41f4b71Sopenharmony_ci
624e41f4b71Sopenharmony_ci
625e41f4b71Sopenharmony_ci## ble.enableAdvertising<sup>11+</sup><a name="enableAdvertising"></a>
626e41f4b71Sopenharmony_ci
627e41f4b71Sopenharmony_cienableAdvertising(advertisingEnableParams: AdvertisingEnableParams): Promise&lt;void&gt;
628e41f4b71Sopenharmony_ci
629e41f4b71Sopenharmony_ci临时启动BLE广播。使用Promise异步回调。
630e41f4b71Sopenharmony_ci
631e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
632e41f4b71Sopenharmony_ci
633e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core634e41f4b71Sopenharmony_ci
635e41f4b71Sopenharmony_ci**参数:**
636e41f4b71Sopenharmony_ci
637e41f4b71Sopenharmony_ci| 参数名                    | 类型                                                 | 必填  | 说明                             |
638e41f4b71Sopenharmony_ci| ------------------------- | --------------------------------------------------- | ----- | ------------------------------- |
639e41f4b71Sopenharmony_ci| advertisingEnableParams   | [AdvertisingEnableParams](#advertisingenableparams11) | 是    | 临时启动BLE广播的相关参数。        |
640e41f4b71Sopenharmony_ci
641e41f4b71Sopenharmony_ci**返回值:**
642e41f4b71Sopenharmony_ci
643e41f4b71Sopenharmony_ci| 类型                       | 说明          |
644e41f4b71Sopenharmony_ci| -------------------------- | ------------ |
645e41f4b71Sopenharmony_ci| Promise&lt;void&gt;      | 回调函数。    |
646e41f4b71Sopenharmony_ci
647e41f4b71Sopenharmony_ci**错误码**:
648e41f4b71Sopenharmony_ci
649e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
650e41f4b71Sopenharmony_ci
651e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
652e41f4b71Sopenharmony_ci| ------- | -------------------------------------- |
653e41f4b71Sopenharmony_ci|201     | Permission denied.                       |
654e41f4b71Sopenharmony_ci|401     | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types.                   |
655e41f4b71Sopenharmony_ci|801     | Capability not supported.                |
656e41f4b71Sopenharmony_ci|2900001 | Service stopped.                         |
657e41f4b71Sopenharmony_ci|2900003 | Bluetooth disabled.                 |
658e41f4b71Sopenharmony_ci|2900099 | Operation failed.                        |
659e41f4b71Sopenharmony_ci
660e41f4b71Sopenharmony_ci**示例:**
661e41f4b71Sopenharmony_ci
662e41f4b71Sopenharmony_ci```js
663e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
664e41f4b71Sopenharmony_cilet manufactureValueBuffer = new Uint8Array(4);
665e41f4b71Sopenharmony_cimanufactureValueBuffer[0] = 1;
666e41f4b71Sopenharmony_cimanufactureValueBuffer[1] = 2;
667e41f4b71Sopenharmony_cimanufactureValueBuffer[2] = 3;
668e41f4b71Sopenharmony_cimanufactureValueBuffer[3] = 4;
669e41f4b71Sopenharmony_ci
670e41f4b71Sopenharmony_cilet serviceValueBuffer = new Uint8Array(4);
671e41f4b71Sopenharmony_ciserviceValueBuffer[0] = 4;
672e41f4b71Sopenharmony_ciserviceValueBuffer[1] = 6;
673e41f4b71Sopenharmony_ciserviceValueBuffer[2] = 7;
674e41f4b71Sopenharmony_ciserviceValueBuffer[3] = 8;
675e41f4b71Sopenharmony_ciconsole.info('manufactureValueBuffer = '+ JSON.stringify(manufactureValueBuffer));
676e41f4b71Sopenharmony_ciconsole.info('serviceValueBuffer = '+ JSON.stringify(serviceValueBuffer));
677e41f4b71Sopenharmony_citry {
678e41f4b71Sopenharmony_ci    let setting: ble.AdvertiseSetting = {
679e41f4b71Sopenharmony_ci        interval:150,
680e41f4b71Sopenharmony_ci        txPower:0,
681e41f4b71Sopenharmony_ci        connectable:true
682e41f4b71Sopenharmony_ci    };
683e41f4b71Sopenharmony_ci    let manufactureDataUnit: ble.ManufactureData = {
684e41f4b71Sopenharmony_ci        manufactureId:4567,
685e41f4b71Sopenharmony_ci        manufactureValue:manufactureValueBuffer.buffer
686e41f4b71Sopenharmony_ci    };
687e41f4b71Sopenharmony_ci    let serviceDataUnit: ble.ServiceData = {
688e41f4b71Sopenharmony_ci        serviceUuid:"00001888-0000-1000-8000-00805f9b34fb",
689e41f4b71Sopenharmony_ci        serviceValue:serviceValueBuffer.buffer
690e41f4b71Sopenharmony_ci    };
691e41f4b71Sopenharmony_ci    let advData: ble.AdvertiseData = {
692e41f4b71Sopenharmony_ci        serviceUuids:["00001888-0000-1000-8000-00805f9b34fb"],
693e41f4b71Sopenharmony_ci        manufactureData:[manufactureDataUnit],
694e41f4b71Sopenharmony_ci        serviceData:[serviceDataUnit]
695e41f4b71Sopenharmony_ci    };
696e41f4b71Sopenharmony_ci    let advResponse: ble.AdvertiseData = {
697e41f4b71Sopenharmony_ci        serviceUuids:["00001888-0000-1000-8000-00805f9b34fb"],
698e41f4b71Sopenharmony_ci        manufactureData:[manufactureDataUnit],
699e41f4b71Sopenharmony_ci        serviceData:[serviceDataUnit]
700e41f4b71Sopenharmony_ci    };
701e41f4b71Sopenharmony_ci    let advertisingParams: ble.AdvertisingParams = {
702e41f4b71Sopenharmony_ci        advertisingSettings: setting,
703e41f4b71Sopenharmony_ci        advertisingData: advData,
704e41f4b71Sopenharmony_ci        advertisingResponse: advResponse,
705e41f4b71Sopenharmony_ci        duration: 300
706e41f4b71Sopenharmony_ci    }
707e41f4b71Sopenharmony_ci    let advHandle = 0xFF;
708e41f4b71Sopenharmony_ci    ble.startAdvertising(advertisingParams, (err, outAdvHandle) => {
709e41f4b71Sopenharmony_ci        if (err) {
710e41f4b71Sopenharmony_ci            return;
711e41f4b71Sopenharmony_ci        } else {
712e41f4b71Sopenharmony_ci            advHandle = outAdvHandle;
713e41f4b71Sopenharmony_ci            console.info("advHandle: " + advHandle);
714e41f4b71Sopenharmony_ci        }
715e41f4b71Sopenharmony_ci    });
716e41f4b71Sopenharmony_ci
717e41f4b71Sopenharmony_ci    let advertisingEnableParams: ble.AdvertisingEnableParams = {
718e41f4b71Sopenharmony_ci        advertisingId: advHandle,
719e41f4b71Sopenharmony_ci        duration: 0
720e41f4b71Sopenharmony_ci    }
721e41f4b71Sopenharmony_ci
722e41f4b71Sopenharmony_ci    // after 3s, advertising disabled, then enable the advertising
723e41f4b71Sopenharmony_ci    ble.enableAdvertising(advertisingEnableParams)
724e41f4b71Sopenharmony_ci        .then(() => {
725e41f4b71Sopenharmony_ci            console.info("enable success");
726e41f4b71Sopenharmony_ci    });
727e41f4b71Sopenharmony_ci} catch (err) {
728e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
729e41f4b71Sopenharmony_ci}
730e41f4b71Sopenharmony_ci```
731e41f4b71Sopenharmony_ci
732e41f4b71Sopenharmony_ci
733e41f4b71Sopenharmony_ci## ble.disableAdvertising<sup>11+</sup><a name="disableAdvertising"></a>
734e41f4b71Sopenharmony_ci
735e41f4b71Sopenharmony_cidisableAdvertising(advertisingDisableParams: AdvertisingDisableParams, callback: AsyncCallback&lt;void&gt;): void
736e41f4b71Sopenharmony_ci
737e41f4b71Sopenharmony_ci临时停止BLE广播。使用Callback异步回调。
738e41f4b71Sopenharmony_ci
739e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
740e41f4b71Sopenharmony_ci
741e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core742e41f4b71Sopenharmony_ci
743e41f4b71Sopenharmony_ci**参数:**
744e41f4b71Sopenharmony_ci
745e41f4b71Sopenharmony_ci| 参数名                    | 类型                                                   | 必填  | 说明                             |
746e41f4b71Sopenharmony_ci| ------------------------- | ----------------------------------------------------- | ----- | ------------------------------- |
747e41f4b71Sopenharmony_ci| advertisingDisableParams  | [AdvertisingDisableParams](#advertisingdisableparams11) | 是    | 临时停止BLE广播的相关参数。        |
748e41f4b71Sopenharmony_ci| callback                  | AsyncCallback&lt;void&gt;                             | 是    | 回调函数。                        |
749e41f4b71Sopenharmony_ci
750e41f4b71Sopenharmony_ci**错误码**:
751e41f4b71Sopenharmony_ci
752e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
753e41f4b71Sopenharmony_ci
754e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
755e41f4b71Sopenharmony_ci| ------- | -------------------------------------- |
756e41f4b71Sopenharmony_ci|201     | Permission denied.                       |
757e41f4b71Sopenharmony_ci|401     | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types.                     |
758e41f4b71Sopenharmony_ci|801     | Capability not supported.                |
759e41f4b71Sopenharmony_ci|2900001 | Service stopped.                         |
760e41f4b71Sopenharmony_ci|2900003 | Bluetooth disabled.                 |
761e41f4b71Sopenharmony_ci|2900099 | Operation failed.                        |
762e41f4b71Sopenharmony_ci
763e41f4b71Sopenharmony_ci**示例:**
764e41f4b71Sopenharmony_ci
765e41f4b71Sopenharmony_ci```js
766e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
767e41f4b71Sopenharmony_cilet manufactureValueBuffer = new Uint8Array(4);
768e41f4b71Sopenharmony_cimanufactureValueBuffer[0] = 1;
769e41f4b71Sopenharmony_cimanufactureValueBuffer[1] = 2;
770e41f4b71Sopenharmony_cimanufactureValueBuffer[2] = 3;
771e41f4b71Sopenharmony_cimanufactureValueBuffer[3] = 4;
772e41f4b71Sopenharmony_ci
773e41f4b71Sopenharmony_cilet serviceValueBuffer = new Uint8Array(4);
774e41f4b71Sopenharmony_ciserviceValueBuffer[0] = 4;
775e41f4b71Sopenharmony_ciserviceValueBuffer[1] = 6;
776e41f4b71Sopenharmony_ciserviceValueBuffer[2] = 7;
777e41f4b71Sopenharmony_ciserviceValueBuffer[3] = 8;
778e41f4b71Sopenharmony_ciconsole.info('manufactureValueBuffer = '+ JSON.stringify(manufactureValueBuffer));
779e41f4b71Sopenharmony_ciconsole.info('serviceValueBuffer = '+ JSON.stringify(serviceValueBuffer));
780e41f4b71Sopenharmony_citry {
781e41f4b71Sopenharmony_ci    let setting: ble.AdvertiseSetting = {
782e41f4b71Sopenharmony_ci        interval:150,
783e41f4b71Sopenharmony_ci        txPower:0,
784e41f4b71Sopenharmony_ci        connectable:true
785e41f4b71Sopenharmony_ci    };
786e41f4b71Sopenharmony_ci    let manufactureDataUnit: ble.ManufactureData = {
787e41f4b71Sopenharmony_ci        manufactureId:4567,
788e41f4b71Sopenharmony_ci        manufactureValue:manufactureValueBuffer.buffer
789e41f4b71Sopenharmony_ci    };
790e41f4b71Sopenharmony_ci    let serviceDataUnit: ble.ServiceData = {
791e41f4b71Sopenharmony_ci        serviceUuid:"00001888-0000-1000-8000-00805f9b34fb",
792e41f4b71Sopenharmony_ci        serviceValue:serviceValueBuffer.buffer
793e41f4b71Sopenharmony_ci    };
794e41f4b71Sopenharmony_ci    let advData: ble.AdvertiseData = {
795e41f4b71Sopenharmony_ci        serviceUuids:["00001888-0000-1000-8000-00805f9b34fb"],
796e41f4b71Sopenharmony_ci        manufactureData:[manufactureDataUnit],
797e41f4b71Sopenharmony_ci        serviceData:[serviceDataUnit]
798e41f4b71Sopenharmony_ci    };
799e41f4b71Sopenharmony_ci    let advResponse: ble.AdvertiseData = {
800e41f4b71Sopenharmony_ci        serviceUuids:["00001888-0000-1000-8000-00805f9b34fb"],
801e41f4b71Sopenharmony_ci        manufactureData:[manufactureDataUnit],
802e41f4b71Sopenharmony_ci        serviceData:[serviceDataUnit]
803e41f4b71Sopenharmony_ci    };
804e41f4b71Sopenharmony_ci    let advertisingParams: ble.AdvertisingParams = {
805e41f4b71Sopenharmony_ci        advertisingSettings: setting,
806e41f4b71Sopenharmony_ci        advertisingData: advData,
807e41f4b71Sopenharmony_ci        advertisingResponse: advResponse,
808e41f4b71Sopenharmony_ci        duration: 0
809e41f4b71Sopenharmony_ci    }
810e41f4b71Sopenharmony_ci    let advHandle = 0xFF;
811e41f4b71Sopenharmony_ci    ble.startAdvertising(advertisingParams, (err, outAdvHandle) => {
812e41f4b71Sopenharmony_ci        if (err) {
813e41f4b71Sopenharmony_ci            return;
814e41f4b71Sopenharmony_ci        } else {
815e41f4b71Sopenharmony_ci            advHandle = outAdvHandle;
816e41f4b71Sopenharmony_ci            console.info("advHandle: " + advHandle);
817e41f4b71Sopenharmony_ci        }
818e41f4b71Sopenharmony_ci    });
819e41f4b71Sopenharmony_ci
820e41f4b71Sopenharmony_ci    let advertisingDisableParams: ble.AdvertisingDisableParams = {
821e41f4b71Sopenharmony_ci        advertisingId: advHandle
822e41f4b71Sopenharmony_ci    }
823e41f4b71Sopenharmony_ci    ble.disableAdvertising(advertisingDisableParams, (err) => {
824e41f4b71Sopenharmony_ci        if (err) {
825e41f4b71Sopenharmony_ci            return;
826e41f4b71Sopenharmony_ci        }
827e41f4b71Sopenharmony_ci    });
828e41f4b71Sopenharmony_ci} catch (err) {
829e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
830e41f4b71Sopenharmony_ci}
831e41f4b71Sopenharmony_ci```
832e41f4b71Sopenharmony_ci
833e41f4b71Sopenharmony_ci
834e41f4b71Sopenharmony_ci## ble.disableAdvertising<sup>11+</sup><a name="disableAdvertising"></a>
835e41f4b71Sopenharmony_ci
836e41f4b71Sopenharmony_cidisableAdvertising(advertisingDisableParams: AdvertisingDisableParams): Promise&lt;void&gt;
837e41f4b71Sopenharmony_ci
838e41f4b71Sopenharmony_ci临时停止BLE广播。使用Promise异步回调。
839e41f4b71Sopenharmony_ci
840e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
841e41f4b71Sopenharmony_ci
842e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core843e41f4b71Sopenharmony_ci
844e41f4b71Sopenharmony_ci**参数:**
845e41f4b71Sopenharmony_ci
846e41f4b71Sopenharmony_ci| 参数名                    | 类型                                                   | 必填  | 说明                             |
847e41f4b71Sopenharmony_ci| ------------------------- | ----------------------------------------------------- | ----- | ------------------------------- |
848e41f4b71Sopenharmony_ci| advertisingDisableParams  | [AdvertisingDisableParams](#advertisingdisableparams11) | 是    | 临时停止BLE广播的相关参数。        |
849e41f4b71Sopenharmony_ci
850e41f4b71Sopenharmony_ci**返回值:**
851e41f4b71Sopenharmony_ci
852e41f4b71Sopenharmony_ci| 类型                       | 说明          |
853e41f4b71Sopenharmony_ci| -------------------------- | ------------ |
854e41f4b71Sopenharmony_ci| Promise&lt;void&gt;        | 回调函数。    |
855e41f4b71Sopenharmony_ci
856e41f4b71Sopenharmony_ci**错误码**:
857e41f4b71Sopenharmony_ci
858e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
859e41f4b71Sopenharmony_ci
860e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
861e41f4b71Sopenharmony_ci| ------- | -------------------------------------- |
862e41f4b71Sopenharmony_ci|201     | Permission denied.                       |
863e41f4b71Sopenharmony_ci|401     | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types.                  |
864e41f4b71Sopenharmony_ci|801     | Capability not supported.                |
865e41f4b71Sopenharmony_ci|2900001 | Service stopped.                         |
866e41f4b71Sopenharmony_ci|2900003 | Bluetooth disabled.                 |
867e41f4b71Sopenharmony_ci|2900099 | Operation failed.                        |
868e41f4b71Sopenharmony_ci
869e41f4b71Sopenharmony_ci**示例:**
870e41f4b71Sopenharmony_ci
871e41f4b71Sopenharmony_ci```js
872e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
873e41f4b71Sopenharmony_cilet manufactureValueBuffer = new Uint8Array(4);
874e41f4b71Sopenharmony_cimanufactureValueBuffer[0] = 1;
875e41f4b71Sopenharmony_cimanufactureValueBuffer[1] = 2;
876e41f4b71Sopenharmony_cimanufactureValueBuffer[2] = 3;
877e41f4b71Sopenharmony_cimanufactureValueBuffer[3] = 4;
878e41f4b71Sopenharmony_ci
879e41f4b71Sopenharmony_cilet serviceValueBuffer = new Uint8Array(4);
880e41f4b71Sopenharmony_ciserviceValueBuffer[0] = 4;
881e41f4b71Sopenharmony_ciserviceValueBuffer[1] = 6;
882e41f4b71Sopenharmony_ciserviceValueBuffer[2] = 7;
883e41f4b71Sopenharmony_ciserviceValueBuffer[3] = 8;
884e41f4b71Sopenharmony_ciconsole.info('manufactureValueBuffer = '+ JSON.stringify(manufactureValueBuffer));
885e41f4b71Sopenharmony_ciconsole.info('serviceValueBuffer = '+ JSON.stringify(serviceValueBuffer));
886e41f4b71Sopenharmony_citry {
887e41f4b71Sopenharmony_ci    let setting: ble.AdvertiseSetting = {
888e41f4b71Sopenharmony_ci        interval:150,
889e41f4b71Sopenharmony_ci        txPower:0,
890e41f4b71Sopenharmony_ci        connectable:true
891e41f4b71Sopenharmony_ci    };
892e41f4b71Sopenharmony_ci    let manufactureDataUnit: ble.ManufactureData = {
893e41f4b71Sopenharmony_ci        manufactureId:4567,
894e41f4b71Sopenharmony_ci        manufactureValue:manufactureValueBuffer.buffer
895e41f4b71Sopenharmony_ci    };
896e41f4b71Sopenharmony_ci    let serviceDataUnit: ble.ServiceData = {
897e41f4b71Sopenharmony_ci        serviceUuid:"00001888-0000-1000-8000-00805f9b34fb",
898e41f4b71Sopenharmony_ci        serviceValue:serviceValueBuffer.buffer
899e41f4b71Sopenharmony_ci    };
900e41f4b71Sopenharmony_ci    let advData: ble.AdvertiseData = {
901e41f4b71Sopenharmony_ci        serviceUuids:["00001888-0000-1000-8000-00805f9b34fb"],
902e41f4b71Sopenharmony_ci        manufactureData:[manufactureDataUnit],
903e41f4b71Sopenharmony_ci        serviceData:[serviceDataUnit]
904e41f4b71Sopenharmony_ci    };
905e41f4b71Sopenharmony_ci    let advResponse: ble.AdvertiseData = {
906e41f4b71Sopenharmony_ci        serviceUuids:["00001888-0000-1000-8000-00805f9b34fb"],
907e41f4b71Sopenharmony_ci        manufactureData:[manufactureDataUnit],
908e41f4b71Sopenharmony_ci        serviceData:[serviceDataUnit]
909e41f4b71Sopenharmony_ci    };
910e41f4b71Sopenharmony_ci    let advertisingParams: ble.AdvertisingParams = {
911e41f4b71Sopenharmony_ci        advertisingSettings: setting,
912e41f4b71Sopenharmony_ci        advertisingData: advData,
913e41f4b71Sopenharmony_ci        advertisingResponse: advResponse,
914e41f4b71Sopenharmony_ci        duration: 0
915e41f4b71Sopenharmony_ci    }
916e41f4b71Sopenharmony_ci    let advHandle = 0xFF;
917e41f4b71Sopenharmony_ci    ble.startAdvertising(advertisingParams, (err, outAdvHandle) => {
918e41f4b71Sopenharmony_ci        if (err) {
919e41f4b71Sopenharmony_ci            return;
920e41f4b71Sopenharmony_ci        } else {
921e41f4b71Sopenharmony_ci            advHandle = outAdvHandle;
922e41f4b71Sopenharmony_ci            console.info("advHandle: " + advHandle);
923e41f4b71Sopenharmony_ci        }
924e41f4b71Sopenharmony_ci    });
925e41f4b71Sopenharmony_ci
926e41f4b71Sopenharmony_ci    let advertisingDisableParams: ble.AdvertisingDisableParams = {
927e41f4b71Sopenharmony_ci        advertisingId: advHandle
928e41f4b71Sopenharmony_ci    }
929e41f4b71Sopenharmony_ci    ble.disableAdvertising(advertisingDisableParams)
930e41f4b71Sopenharmony_ci        .then(() => {
931e41f4b71Sopenharmony_ci            console.info("enable success");
932e41f4b71Sopenharmony_ci    });
933e41f4b71Sopenharmony_ci} catch (err) {
934e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
935e41f4b71Sopenharmony_ci}
936e41f4b71Sopenharmony_ci```
937e41f4b71Sopenharmony_ci
938e41f4b71Sopenharmony_ci## ble.stopAdvertising<sup>11+</sup><a name="stopAdvertising"></a>
939e41f4b71Sopenharmony_ci
940e41f4b71Sopenharmony_cistopAdvertising(advertisingId: number, callback: AsyncCallback&lt;void&gt;): void
941e41f4b71Sopenharmony_ci
942e41f4b71Sopenharmony_ci停止发送BLE广播。使用Callback异步回调。
943e41f4b71Sopenharmony_ci
944e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
945e41f4b71Sopenharmony_ci
946e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core947e41f4b71Sopenharmony_ci
948e41f4b71Sopenharmony_ci**参数:**
949e41f4b71Sopenharmony_ci
950e41f4b71Sopenharmony_ci| 参数名                    | 类型                          | 必填  | 说明                         |
951e41f4b71Sopenharmony_ci| ------------------------- | ---------------------------- | ----- | --------------------------- |
952e41f4b71Sopenharmony_ci| advertisingId             | number                       | 是    | 需要停止的广播ID标识。        |
953e41f4b71Sopenharmony_ci| callback                  | AsyncCallback&lt;void&gt;    | 是    | 回调函数。                   |
954e41f4b71Sopenharmony_ci
955e41f4b71Sopenharmony_ci**错误码**:
956e41f4b71Sopenharmony_ci
957e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
958e41f4b71Sopenharmony_ci
959e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
960e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
961e41f4b71Sopenharmony_ci|201     | Permission denied.                       |
962e41f4b71Sopenharmony_ci|401     | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types.                  |
963e41f4b71Sopenharmony_ci|801     | Capability not supported.                |
964e41f4b71Sopenharmony_ci|2900001 | Service stopped.                         |
965e41f4b71Sopenharmony_ci|2900003 | Bluetooth disabled.                 |
966e41f4b71Sopenharmony_ci|2900099 | Operation failed.                        |
967e41f4b71Sopenharmony_ci
968e41f4b71Sopenharmony_ci**示例:**
969e41f4b71Sopenharmony_ci
970e41f4b71Sopenharmony_ci```js
971e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
972e41f4b71Sopenharmony_cilet manufactureValueBuffer = new Uint8Array(4);
973e41f4b71Sopenharmony_cimanufactureValueBuffer[0] = 1;
974e41f4b71Sopenharmony_cimanufactureValueBuffer[1] = 2;
975e41f4b71Sopenharmony_cimanufactureValueBuffer[2] = 3;
976e41f4b71Sopenharmony_cimanufactureValueBuffer[3] = 4;
977e41f4b71Sopenharmony_ci
978e41f4b71Sopenharmony_cilet serviceValueBuffer = new Uint8Array(4);
979e41f4b71Sopenharmony_ciserviceValueBuffer[0] = 4;
980e41f4b71Sopenharmony_ciserviceValueBuffer[1] = 6;
981e41f4b71Sopenharmony_ciserviceValueBuffer[2] = 7;
982e41f4b71Sopenharmony_ciserviceValueBuffer[3] = 8;
983e41f4b71Sopenharmony_ciconsole.info('manufactureValueBuffer = '+ JSON.stringify(manufactureValueBuffer));
984e41f4b71Sopenharmony_ciconsole.info('serviceValueBuffer = '+ JSON.stringify(serviceValueBuffer));
985e41f4b71Sopenharmony_citry {
986e41f4b71Sopenharmony_ci    let setting: ble.AdvertiseSetting = {
987e41f4b71Sopenharmony_ci        interval:150,
988e41f4b71Sopenharmony_ci        txPower:0,
989e41f4b71Sopenharmony_ci        connectable:true
990e41f4b71Sopenharmony_ci    };
991e41f4b71Sopenharmony_ci    let manufactureDataUnit: ble.ManufactureData = {
992e41f4b71Sopenharmony_ci        manufactureId:4567,
993e41f4b71Sopenharmony_ci        manufactureValue:manufactureValueBuffer.buffer
994e41f4b71Sopenharmony_ci    };
995e41f4b71Sopenharmony_ci    let serviceDataUnit: ble.ServiceData = {
996e41f4b71Sopenharmony_ci        serviceUuid:"00001888-0000-1000-8000-00805f9b34fb",
997e41f4b71Sopenharmony_ci        serviceValue:serviceValueBuffer.buffer
998e41f4b71Sopenharmony_ci    };
999e41f4b71Sopenharmony_ci    let advData: ble.AdvertiseData = {
1000e41f4b71Sopenharmony_ci        serviceUuids:["00001888-0000-1000-8000-00805f9b34fb"],
1001e41f4b71Sopenharmony_ci        manufactureData:[manufactureDataUnit],
1002e41f4b71Sopenharmony_ci        serviceData:[serviceDataUnit]
1003e41f4b71Sopenharmony_ci    };
1004e41f4b71Sopenharmony_ci    let advResponse: ble.AdvertiseData = {
1005e41f4b71Sopenharmony_ci        serviceUuids:["00001888-0000-1000-8000-00805f9b34fb"],
1006e41f4b71Sopenharmony_ci        manufactureData:[manufactureDataUnit],
1007e41f4b71Sopenharmony_ci        serviceData:[serviceDataUnit]
1008e41f4b71Sopenharmony_ci    };
1009e41f4b71Sopenharmony_ci    let advertisingParams: ble.AdvertisingParams = {
1010e41f4b71Sopenharmony_ci        advertisingSettings: setting,
1011e41f4b71Sopenharmony_ci        advertisingData: advData,
1012e41f4b71Sopenharmony_ci        advertisingResponse: advResponse,
1013e41f4b71Sopenharmony_ci        duration: 0
1014e41f4b71Sopenharmony_ci    }
1015e41f4b71Sopenharmony_ci    let advHandle = 0xFF;
1016e41f4b71Sopenharmony_ci    ble.startAdvertising(advertisingParams, (err, outAdvHandle) => {
1017e41f4b71Sopenharmony_ci        if (err) {
1018e41f4b71Sopenharmony_ci            return;
1019e41f4b71Sopenharmony_ci        } else {
1020e41f4b71Sopenharmony_ci            advHandle = outAdvHandle;
1021e41f4b71Sopenharmony_ci            console.info("advHandle: " + advHandle);
1022e41f4b71Sopenharmony_ci        }
1023e41f4b71Sopenharmony_ci    });
1024e41f4b71Sopenharmony_ci
1025e41f4b71Sopenharmony_ci    ble.stopAdvertising(advHandle, (err) => {
1026e41f4b71Sopenharmony_ci        if (err) {
1027e41f4b71Sopenharmony_ci            return;
1028e41f4b71Sopenharmony_ci        }
1029e41f4b71Sopenharmony_ci    });
1030e41f4b71Sopenharmony_ci} catch (err) {
1031e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
1032e41f4b71Sopenharmony_ci}
1033e41f4b71Sopenharmony_ci```
1034e41f4b71Sopenharmony_ci
1035e41f4b71Sopenharmony_ci
1036e41f4b71Sopenharmony_ci## ble.stopAdvertising<sup>11+</sup><a name="stopAdvertising"></a>
1037e41f4b71Sopenharmony_ci
1038e41f4b71Sopenharmony_cistopAdvertising(advertisingId: number): Promise&lt;void&gt;
1039e41f4b71Sopenharmony_ci
1040e41f4b71Sopenharmony_ci停止发送BLE广播。使用Promise异步回调。
1041e41f4b71Sopenharmony_ci
1042e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
1043e41f4b71Sopenharmony_ci
1044e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core1045e41f4b71Sopenharmony_ci
1046e41f4b71Sopenharmony_ci**参数:**
1047e41f4b71Sopenharmony_ci
1048e41f4b71Sopenharmony_ci| 参数名                    | 类型                          | 必填  | 说明                         |
1049e41f4b71Sopenharmony_ci| ------------------------- | ---------------------------- | ----- | --------------------------- |
1050e41f4b71Sopenharmony_ci| advertisingId             | number                       | 是    | 需要停止的广播ID标识。        |
1051e41f4b71Sopenharmony_ci
1052e41f4b71Sopenharmony_ci**返回值:**
1053e41f4b71Sopenharmony_ci
1054e41f4b71Sopenharmony_ci| 类型                       | 说明          |
1055e41f4b71Sopenharmony_ci| -------------------------- | ------------ |
1056e41f4b71Sopenharmony_ci| Promise&lt;void&gt;        | 回调函数。    |
1057e41f4b71Sopenharmony_ci
1058e41f4b71Sopenharmony_ci**错误码**:
1059e41f4b71Sopenharmony_ci
1060e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
1061e41f4b71Sopenharmony_ci
1062e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
1063e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
1064e41f4b71Sopenharmony_ci|201     | Permission denied.                       |
1065e41f4b71Sopenharmony_ci|401     | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types.                 |
1066e41f4b71Sopenharmony_ci|801     | Capability not supported.                |
1067e41f4b71Sopenharmony_ci|2900001 | Service stopped.                         |
1068e41f4b71Sopenharmony_ci|2900003 | Bluetooth disabled.                 |
1069e41f4b71Sopenharmony_ci|2900099 | Operation failed.                        |
1070e41f4b71Sopenharmony_ci
1071e41f4b71Sopenharmony_ci**示例:**
1072e41f4b71Sopenharmony_ci
1073e41f4b71Sopenharmony_ci```js
1074e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
1075e41f4b71Sopenharmony_cilet manufactureValueBuffer = new Uint8Array(4);
1076e41f4b71Sopenharmony_cimanufactureValueBuffer[0] = 1;
1077e41f4b71Sopenharmony_cimanufactureValueBuffer[1] = 2;
1078e41f4b71Sopenharmony_cimanufactureValueBuffer[2] = 3;
1079e41f4b71Sopenharmony_cimanufactureValueBuffer[3] = 4;
1080e41f4b71Sopenharmony_ci
1081e41f4b71Sopenharmony_cilet serviceValueBuffer = new Uint8Array(4);
1082e41f4b71Sopenharmony_ciserviceValueBuffer[0] = 4;
1083e41f4b71Sopenharmony_ciserviceValueBuffer[1] = 6;
1084e41f4b71Sopenharmony_ciserviceValueBuffer[2] = 7;
1085e41f4b71Sopenharmony_ciserviceValueBuffer[3] = 8;
1086e41f4b71Sopenharmony_ciconsole.info('manufactureValueBuffer = '+ JSON.stringify(manufactureValueBuffer));
1087e41f4b71Sopenharmony_ciconsole.info('serviceValueBuffer = '+ JSON.stringify(serviceValueBuffer));
1088e41f4b71Sopenharmony_citry {
1089e41f4b71Sopenharmony_ci    let setting: ble.AdvertiseSetting = {
1090e41f4b71Sopenharmony_ci        interval:150,
1091e41f4b71Sopenharmony_ci        txPower:0,
1092e41f4b71Sopenharmony_ci        connectable:true
1093e41f4b71Sopenharmony_ci    };
1094e41f4b71Sopenharmony_ci    let manufactureDataUnit: ble.ManufactureData = {
1095e41f4b71Sopenharmony_ci        manufactureId:4567,
1096e41f4b71Sopenharmony_ci        manufactureValue:manufactureValueBuffer.buffer
1097e41f4b71Sopenharmony_ci    };
1098e41f4b71Sopenharmony_ci    let serviceDataUnit: ble.ServiceData = {
1099e41f4b71Sopenharmony_ci        serviceUuid:"00001888-0000-1000-8000-00805f9b34fb",
1100e41f4b71Sopenharmony_ci        serviceValue:serviceValueBuffer.buffer
1101e41f4b71Sopenharmony_ci    };
1102e41f4b71Sopenharmony_ci    let advData: ble.AdvertiseData = {
1103e41f4b71Sopenharmony_ci        serviceUuids:["00001888-0000-1000-8000-00805f9b34fb"],
1104e41f4b71Sopenharmony_ci        manufactureData:[manufactureDataUnit],
1105e41f4b71Sopenharmony_ci        serviceData:[serviceDataUnit]
1106e41f4b71Sopenharmony_ci    };
1107e41f4b71Sopenharmony_ci    let advResponse: ble.AdvertiseData = {
1108e41f4b71Sopenharmony_ci        serviceUuids:["00001888-0000-1000-8000-00805f9b34fb"],
1109e41f4b71Sopenharmony_ci        manufactureData:[manufactureDataUnit],
1110e41f4b71Sopenharmony_ci        serviceData:[serviceDataUnit]
1111e41f4b71Sopenharmony_ci    };
1112e41f4b71Sopenharmony_ci    let advertisingParams: ble.AdvertisingParams = {
1113e41f4b71Sopenharmony_ci        advertisingSettings: setting,
1114e41f4b71Sopenharmony_ci        advertisingData: advData,
1115e41f4b71Sopenharmony_ci        advertisingResponse: advResponse,
1116e41f4b71Sopenharmony_ci        duration: 0
1117e41f4b71Sopenharmony_ci    }
1118e41f4b71Sopenharmony_ci    let advHandle = 0xFF;
1119e41f4b71Sopenharmony_ci    ble.startAdvertising(advertisingParams, (err, outAdvHandle) => {
1120e41f4b71Sopenharmony_ci        if (err) {
1121e41f4b71Sopenharmony_ci            return;
1122e41f4b71Sopenharmony_ci        } else {
1123e41f4b71Sopenharmony_ci            advHandle = outAdvHandle;
1124e41f4b71Sopenharmony_ci            console.info("advHandle: " + advHandle);
1125e41f4b71Sopenharmony_ci        }
1126e41f4b71Sopenharmony_ci    });
1127e41f4b71Sopenharmony_ci
1128e41f4b71Sopenharmony_ci    ble.stopAdvertising(advHandle)
1129e41f4b71Sopenharmony_ci        .then(() => {
1130e41f4b71Sopenharmony_ci            console.info("enable success");
1131e41f4b71Sopenharmony_ci    });
1132e41f4b71Sopenharmony_ci} catch (err) {
1133e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
1134e41f4b71Sopenharmony_ci}
1135e41f4b71Sopenharmony_ci```
1136e41f4b71Sopenharmony_ci
1137e41f4b71Sopenharmony_ci
1138e41f4b71Sopenharmony_ci## ble.on('advertisingStateChange')<sup>11+</sup>
1139e41f4b71Sopenharmony_ci
1140e41f4b71Sopenharmony_cion(type: 'advertisingStateChange', callback: Callback&lt;AdvertisingStateChangeInfo&gt;): void
1141e41f4b71Sopenharmony_ci
1142e41f4b71Sopenharmony_ci订阅BLE广播状态。使用Callback异步回调。
1143e41f4b71Sopenharmony_ci
1144e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
1145e41f4b71Sopenharmony_ci
1146e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core1147e41f4b71Sopenharmony_ci
1148e41f4b71Sopenharmony_ci**参数:**
1149e41f4b71Sopenharmony_ci
1150e41f4b71Sopenharmony_ci| 参数名      | 类型                                                                    | 必填   | 说明                                                      |
1151e41f4b71Sopenharmony_ci| -------- | ------------------------------------------------------------------------- | ----- | ---------------------------------------------------------- |
1152e41f4b71Sopenharmony_ci| type     | string                                                                    | 是    | 填写"advertisingStateChange"字符串,表示广播状态事件。        |
1153e41f4b71Sopenharmony_ci| callback | Callback&lt;[AdvertisingStateChangeInfo](#advertisingstatechangeinfo11)&gt; | 是    | 表示回调函数的入参,广播状态。回调函数由用户创建通过该接口注册。 |
1154e41f4b71Sopenharmony_ci
1155e41f4b71Sopenharmony_ci**错误码**:
1156e41f4b71Sopenharmony_ci
1157e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
1158e41f4b71Sopenharmony_ci
1159e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
1160e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
1161e41f4b71Sopenharmony_ci|201     | Permission denied.                       |
1162e41f4b71Sopenharmony_ci|401     | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verification failed.                       |
1163e41f4b71Sopenharmony_ci|801     | Capability not supported.                |
1164e41f4b71Sopenharmony_ci|2900099 | Operation failed.                        |
1165e41f4b71Sopenharmony_ci
1166e41f4b71Sopenharmony_ci**示例:**
1167e41f4b71Sopenharmony_ci
1168e41f4b71Sopenharmony_ci```js
1169e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
1170e41f4b71Sopenharmony_cifunction onReceiveEvent(data: ble.AdvertisingStateChangeInfo) {
1171e41f4b71Sopenharmony_ci    console.info('bluetooth advertising state = ' + JSON.stringify(data));
1172e41f4b71Sopenharmony_ci}
1173e41f4b71Sopenharmony_citry {
1174e41f4b71Sopenharmony_ci    ble.on('advertisingStateChange', onReceiveEvent);
1175e41f4b71Sopenharmony_ci} catch (err) {
1176e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
1177e41f4b71Sopenharmony_ci}
1178e41f4b71Sopenharmony_ci```
1179e41f4b71Sopenharmony_ci
1180e41f4b71Sopenharmony_ci
1181e41f4b71Sopenharmony_ci## ble.off('advertisingStateChange')<sup>11+</sup>
1182e41f4b71Sopenharmony_ci
1183e41f4b71Sopenharmony_cioff(type: 'advertisingStateChange', callback?: Callback&lt;AdvertisingStateChangeInfo&gt;): void
1184e41f4b71Sopenharmony_ci
1185e41f4b71Sopenharmony_ci取消订阅BLE广播状态。
1186e41f4b71Sopenharmony_ci
1187e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
1188e41f4b71Sopenharmony_ci
1189e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core1190e41f4b71Sopenharmony_ci
1191e41f4b71Sopenharmony_ci**参数:**
1192e41f4b71Sopenharmony_ci
1193e41f4b71Sopenharmony_ci| 参数名      | 类型                                                                    | 必填   | 说明                                                      |
1194e41f4b71Sopenharmony_ci| -------- | ------------------------------------------------------------------------- | ----- | ---------------------------------------------------------- |
1195e41f4b71Sopenharmony_ci| type     | string                                                                    | 是    | 填写"advertisingStateChange"字符串,表示广播状态事件。        |
1196e41f4b71Sopenharmony_ci| callback | Callback&lt;[AdvertisingStateChangeInfo](#advertisingstatechangeinfo11)&gt; | 否    | 表示取消订阅广播状态上报。不填该参数则取消订阅该type对应的所有回调。 |
1197e41f4b71Sopenharmony_ci
1198e41f4b71Sopenharmony_ci**错误码**:
1199e41f4b71Sopenharmony_ci
1200e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
1201e41f4b71Sopenharmony_ci
1202e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
1203e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
1204e41f4b71Sopenharmony_ci|201     | Permission denied.                       |
1205e41f4b71Sopenharmony_ci|401     | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verification failed.                       |
1206e41f4b71Sopenharmony_ci|801     | Capability not supported.                |
1207e41f4b71Sopenharmony_ci|2900099 | Operation failed.                        |
1208e41f4b71Sopenharmony_ci
1209e41f4b71Sopenharmony_ci**示例:**
1210e41f4b71Sopenharmony_ci
1211e41f4b71Sopenharmony_ci```js
1212e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
1213e41f4b71Sopenharmony_cifunction onReceiveEvent(data: ble.AdvertisingStateChangeInfo) {
1214e41f4b71Sopenharmony_ci    console.info('bluetooth advertising state = ' + JSON.stringify(data));
1215e41f4b71Sopenharmony_ci}
1216e41f4b71Sopenharmony_citry {
1217e41f4b71Sopenharmony_ci    ble.on('advertisingStateChange', onReceiveEvent);
1218e41f4b71Sopenharmony_ci    ble.off('advertisingStateChange', onReceiveEvent);
1219e41f4b71Sopenharmony_ci} catch (err) {
1220e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
1221e41f4b71Sopenharmony_ci}
1222e41f4b71Sopenharmony_ci```
1223e41f4b71Sopenharmony_ci
1224e41f4b71Sopenharmony_ci
1225e41f4b71Sopenharmony_ci## ble.on('BLEDeviceFind')
1226e41f4b71Sopenharmony_ci
1227e41f4b71Sopenharmony_cion(type: 'BLEDeviceFind', callback: Callback&lt;Array&lt;ScanResult&gt;&gt;): void
1228e41f4b71Sopenharmony_ci
1229e41f4b71Sopenharmony_ci订阅BLE设备发现上报事件。使用Callback异步回调。
1230e41f4b71Sopenharmony_ci
1231e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
1232e41f4b71Sopenharmony_ci
1233e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
1234e41f4b71Sopenharmony_ci
1235e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core1236e41f4b71Sopenharmony_ci
1237e41f4b71Sopenharmony_ci**参数:**
1238e41f4b71Sopenharmony_ci
1239e41f4b71Sopenharmony_ci| 参数名      | 类型                                       | 必填   | 说明                                  |
1240e41f4b71Sopenharmony_ci| -------- | ---------------------------------------- | ---- | ----------------------------------- |
1241e41f4b71Sopenharmony_ci| type     | string                                   | 是    | 填写"BLEDeviceFind"字符串,表示BLE设备发现事件。   |
1242e41f4b71Sopenharmony_ci| callback | Callback&lt;Array&lt;[ScanResult](#scanresult)&gt;&gt; | 是    | 表示回调函数的入参,发现的设备集合。回调函数由用户创建通过该接口注册。 |
1243e41f4b71Sopenharmony_ci
1244e41f4b71Sopenharmony_ci**错误码**:
1245e41f4b71Sopenharmony_ci
1246e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
1247e41f4b71Sopenharmony_ci
1248e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
1249e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
1250e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
1251e41f4b71Sopenharmony_ci|401 | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verification failed.                 |
1252e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
1253e41f4b71Sopenharmony_ci|2900099 | Operation failed.                        |
1254e41f4b71Sopenharmony_ci
1255e41f4b71Sopenharmony_ci**示例:**
1256e41f4b71Sopenharmony_ci
1257e41f4b71Sopenharmony_ci```js
1258e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
1259e41f4b71Sopenharmony_cifunction onReceiveEvent(data: Array<ble.ScanResult>) {
1260e41f4b71Sopenharmony_ci    console.info('bluetooth device find = '+ JSON.stringify(data));
1261e41f4b71Sopenharmony_ci}
1262e41f4b71Sopenharmony_citry {
1263e41f4b71Sopenharmony_ci    ble.on('BLEDeviceFind', onReceiveEvent);
1264e41f4b71Sopenharmony_ci} catch (err) {
1265e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
1266e41f4b71Sopenharmony_ci}
1267e41f4b71Sopenharmony_ci```
1268e41f4b71Sopenharmony_ci
1269e41f4b71Sopenharmony_ci
1270e41f4b71Sopenharmony_ci## ble.off('BLEDeviceFind')
1271e41f4b71Sopenharmony_ci
1272e41f4b71Sopenharmony_cioff(type: 'BLEDeviceFind', callback?: Callback&lt;Array&lt;ScanResult&gt;&gt;): void
1273e41f4b71Sopenharmony_ci
1274e41f4b71Sopenharmony_ci取消订阅BLE设备发现上报事件。
1275e41f4b71Sopenharmony_ci
1276e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
1277e41f4b71Sopenharmony_ci
1278e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
1279e41f4b71Sopenharmony_ci
1280e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core1281e41f4b71Sopenharmony_ci
1282e41f4b71Sopenharmony_ci**参数:**
1283e41f4b71Sopenharmony_ci
1284e41f4b71Sopenharmony_ci| 参数名      | 类型                                       | 必填   | 说明                                       |
1285e41f4b71Sopenharmony_ci| -------- | ---------------------------------------- | ---- | ---------------------------------------- |
1286e41f4b71Sopenharmony_ci| type     | string                                   | 是    | 填写"BLEDeviceFind"字符串,表示BLE设备发现事件。        |
1287e41f4b71Sopenharmony_ci| callback | Callback&lt;Array&lt;[ScanResult](#scanresult)&gt;&gt; | 否    | 表示取消订阅BLE设备发现事件上报。不填该参数则取消订阅该type对应的所有回调。 |
1288e41f4b71Sopenharmony_ci
1289e41f4b71Sopenharmony_ci**错误码**:
1290e41f4b71Sopenharmony_ci
1291e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
1292e41f4b71Sopenharmony_ci
1293e41f4b71Sopenharmony_ci
1294e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
1295e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
1296e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
1297e41f4b71Sopenharmony_ci|401 | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verification failed.                 |
1298e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
1299e41f4b71Sopenharmony_ci|2900099 | Operation failed.                        |
1300e41f4b71Sopenharmony_ci
1301e41f4b71Sopenharmony_ci**示例:**
1302e41f4b71Sopenharmony_ci
1303e41f4b71Sopenharmony_ci```js
1304e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
1305e41f4b71Sopenharmony_cifunction onReceiveEvent(data: Array<ble.ScanResult>) {
1306e41f4b71Sopenharmony_ci    console.info('bluetooth device find = '+ JSON.stringify(data));
1307e41f4b71Sopenharmony_ci}
1308e41f4b71Sopenharmony_citry {
1309e41f4b71Sopenharmony_ci    ble.on('BLEDeviceFind', onReceiveEvent);
1310e41f4b71Sopenharmony_ci    ble.off('BLEDeviceFind', onReceiveEvent);
1311e41f4b71Sopenharmony_ci} catch (err) {
1312e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
1313e41f4b71Sopenharmony_ci}
1314e41f4b71Sopenharmony_ci```
1315e41f4b71Sopenharmony_ci
1316e41f4b71Sopenharmony_ci
1317e41f4b71Sopenharmony_ci## GattServer
1318e41f4b71Sopenharmony_ci
1319e41f4b71Sopenharmony_ciserver端类,使用server端方法之前需要创建该类的实例进行操作,通过createGattServer()方法构造此实例。
1320e41f4b71Sopenharmony_ci
1321e41f4b71Sopenharmony_ci
1322e41f4b71Sopenharmony_ci### addService
1323e41f4b71Sopenharmony_ci
1324e41f4b71Sopenharmony_ciaddService(service: GattService): void
1325e41f4b71Sopenharmony_ci
1326e41f4b71Sopenharmony_ciserver端添加服务。
1327e41f4b71Sopenharmony_ci
1328e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
1329e41f4b71Sopenharmony_ci
1330e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
1331e41f4b71Sopenharmony_ci
1332e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core1333e41f4b71Sopenharmony_ci
1334e41f4b71Sopenharmony_ci**参数:**
1335e41f4b71Sopenharmony_ci
1336e41f4b71Sopenharmony_ci| 参数名     | 类型                          | 必填   | 说明                       |
1337e41f4b71Sopenharmony_ci| ------- | --------------------------- | ---- | ------------------------ |
1338e41f4b71Sopenharmony_ci| service | [GattService](#gattservice) | 是    | 服务端的service数据。BLE广播的相关参数 |
1339e41f4b71Sopenharmony_ci
1340e41f4b71Sopenharmony_ci**错误码**:
1341e41f4b71Sopenharmony_ci
1342e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
1343e41f4b71Sopenharmony_ci
1344e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
1345e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
1346e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
1347e41f4b71Sopenharmony_ci|401 | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verification failed.                 |
1348e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
1349e41f4b71Sopenharmony_ci|2900001 | Service stopped.                         |
1350e41f4b71Sopenharmony_ci|2900003 | Bluetooth disabled.                 |
1351e41f4b71Sopenharmony_ci|2900099 | Operation failed.                        |
1352e41f4b71Sopenharmony_ci
1353e41f4b71Sopenharmony_ci**示例:**
1354e41f4b71Sopenharmony_ci
1355e41f4b71Sopenharmony_ci```js
1356e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
1357e41f4b71Sopenharmony_ci// 创建descriptors
1358e41f4b71Sopenharmony_cilet descriptors: Array<ble.BLEDescriptor> = [];
1359e41f4b71Sopenharmony_cilet arrayBuffer = new ArrayBuffer(8);
1360e41f4b71Sopenharmony_cilet descV = new Uint8Array(arrayBuffer);
1361e41f4b71Sopenharmony_cidescV[0] = 11;
1362e41f4b71Sopenharmony_cilet descriptor: ble.BLEDescriptor = {serviceUuid: '00001810-0000-1000-8000-00805F9B34FB',
1363e41f4b71Sopenharmony_ci  characteristicUuid: '00001820-0000-1000-8000-00805F9B34FB',
1364e41f4b71Sopenharmony_ci  descriptorUuid: '00002902-0000-1000-8000-00805F9B34FB', descriptorValue: arrayBuffer};
1365e41f4b71Sopenharmony_cidescriptors[0] = descriptor;
1366e41f4b71Sopenharmony_ci
1367e41f4b71Sopenharmony_ci// 创建characteristics
1368e41f4b71Sopenharmony_cilet characteristics: Array<ble.BLECharacteristic> = [];
1369e41f4b71Sopenharmony_cilet arrayBufferC = new ArrayBuffer(8);
1370e41f4b71Sopenharmony_cilet cccV = new Uint8Array(arrayBufferC);
1371e41f4b71Sopenharmony_cicccV[0] = 1;
1372e41f4b71Sopenharmony_cilet characteristic: ble.BLECharacteristic = {serviceUuid: '00001810-0000-1000-8000-00805F9B34FB',
1373e41f4b71Sopenharmony_ci  characteristicUuid: '00001820-0000-1000-8000-00805F9B34FB', characteristicValue: arrayBufferC, descriptors:descriptors};
1374e41f4b71Sopenharmony_cicharacteristics[0] = characteristic;
1375e41f4b71Sopenharmony_ci
1376e41f4b71Sopenharmony_ci// 创建gattService
1377e41f4b71Sopenharmony_cilet gattService: ble.GattService = {serviceUuid:'00001810-0000-1000-8000-00805F9B34FB', isPrimary: true, characteristics:characteristics, includeServices:[]};
1378e41f4b71Sopenharmony_ci
1379e41f4b71Sopenharmony_citry {
1380e41f4b71Sopenharmony_ci    let gattServer: ble.GattServer = ble.createGattServer(); 
1381e41f4b71Sopenharmony_ci    gattServer.addService(gattService);
1382e41f4b71Sopenharmony_ci} catch (err) {
1383e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
1384e41f4b71Sopenharmony_ci}
1385e41f4b71Sopenharmony_ci```
1386e41f4b71Sopenharmony_ci
1387e41f4b71Sopenharmony_ci
1388e41f4b71Sopenharmony_ci### removeService
1389e41f4b71Sopenharmony_ci
1390e41f4b71Sopenharmony_ciremoveService(serviceUuid: string): void
1391e41f4b71Sopenharmony_ci
1392e41f4b71Sopenharmony_ci删除已添加的服务。
1393e41f4b71Sopenharmony_ci
1394e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
1395e41f4b71Sopenharmony_ci
1396e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
1397e41f4b71Sopenharmony_ci
1398e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core1399e41f4b71Sopenharmony_ci
1400e41f4b71Sopenharmony_ci**参数:**
1401e41f4b71Sopenharmony_ci
1402e41f4b71Sopenharmony_ci| 参数名         | 类型     | 必填   | 说明                                       |
1403e41f4b71Sopenharmony_ci| ----------- | ------ | ---- | ---------------------------------------- |
1404e41f4b71Sopenharmony_ci| serviceUuid | string | 是    | service的UUID,例如“00001810-0000-1000-8000-00805F9B34FB”。 |
1405e41f4b71Sopenharmony_ci
1406e41f4b71Sopenharmony_ci**错误码**:
1407e41f4b71Sopenharmony_ci
1408e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
1409e41f4b71Sopenharmony_ci
1410e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
1411e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
1412e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
1413e41f4b71Sopenharmony_ci|401 | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verification failed.                 |
1414e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
1415e41f4b71Sopenharmony_ci|2900001 | Service stopped.                         |
1416e41f4b71Sopenharmony_ci|2900003 | Bluetooth disabled.                 |
1417e41f4b71Sopenharmony_ci|2900004 | Profile not supported.                |
1418e41f4b71Sopenharmony_ci|2900099 | Operation failed.                        |
1419e41f4b71Sopenharmony_ci
1420e41f4b71Sopenharmony_ci**示例:**
1421e41f4b71Sopenharmony_ci
1422e41f4b71Sopenharmony_ci```js
1423e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
1424e41f4b71Sopenharmony_cilet server: ble.GattServer = ble.createGattServer();
1425e41f4b71Sopenharmony_citry {
1426e41f4b71Sopenharmony_ci    // 调用removeService接口前需要完成server端和client端的配对及连接。
1427e41f4b71Sopenharmony_ci    server.removeService('00001810-0000-1000-8000-00805F9B34FB');
1428e41f4b71Sopenharmony_ci} catch (err) {
1429e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
1430e41f4b71Sopenharmony_ci}
1431e41f4b71Sopenharmony_ci```
1432e41f4b71Sopenharmony_ci
1433e41f4b71Sopenharmony_ci
1434e41f4b71Sopenharmony_ci### close
1435e41f4b71Sopenharmony_ci
1436e41f4b71Sopenharmony_ciclose(): void
1437e41f4b71Sopenharmony_ci
1438e41f4b71Sopenharmony_ci关闭服务端功能,去掉server在协议栈的注册,调用该接口后[GattServer](#gattserver)实例将不能再使用。
1439e41f4b71Sopenharmony_ci
1440e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
1441e41f4b71Sopenharmony_ci
1442e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
1443e41f4b71Sopenharmony_ci
1444e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core1445e41f4b71Sopenharmony_ci
1446e41f4b71Sopenharmony_ci**错误码**:
1447e41f4b71Sopenharmony_ci
1448e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
1449e41f4b71Sopenharmony_ci
1450e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
1451e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
1452e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
1453e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
1454e41f4b71Sopenharmony_ci|2900001 | Service stopped.                         |
1455e41f4b71Sopenharmony_ci|2900003 | Bluetooth disabled.                 |
1456e41f4b71Sopenharmony_ci|2900099 | Operation failed.                        |
1457e41f4b71Sopenharmony_ci
1458e41f4b71Sopenharmony_ci**示例:**
1459e41f4b71Sopenharmony_ci
1460e41f4b71Sopenharmony_ci```js
1461e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
1462e41f4b71Sopenharmony_cilet server: ble.GattServer = ble.createGattServer();
1463e41f4b71Sopenharmony_citry {
1464e41f4b71Sopenharmony_ci    server.close();
1465e41f4b71Sopenharmony_ci} catch (err) {
1466e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
1467e41f4b71Sopenharmony_ci}
1468e41f4b71Sopenharmony_ci```
1469e41f4b71Sopenharmony_ci
1470e41f4b71Sopenharmony_ci
1471e41f4b71Sopenharmony_ci### notifyCharacteristicChanged
1472e41f4b71Sopenharmony_ci
1473e41f4b71Sopenharmony_cinotifyCharacteristicChanged(deviceId: string, notifyCharacteristic: NotifyCharacteristic, callback: AsyncCallback&lt;void&gt;): void
1474e41f4b71Sopenharmony_ci
1475e41f4b71Sopenharmony_ciserver端特征值发生变化时,主动通知已连接的client设备。使用Callback异步回调。
1476e41f4b71Sopenharmony_ci
1477e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
1478e41f4b71Sopenharmony_ci
1479e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
1480e41f4b71Sopenharmony_ci
1481e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core1482e41f4b71Sopenharmony_ci
1483e41f4b71Sopenharmony_ci**参数:**
1484e41f4b71Sopenharmony_ci
1485e41f4b71Sopenharmony_ci| 参数名                  | 类型                                       | 必填   | 说明                                      |
1486e41f4b71Sopenharmony_ci| -------------------- | ---------------------------------------- | ---- | --------------------------------------- |
1487e41f4b71Sopenharmony_ci| deviceId             | string                                   | 是    | 接收通知的client端设备地址,例如“XX:XX:XX:XX:XX:XX”。 |
1488e41f4b71Sopenharmony_ci| notifyCharacteristic | [NotifyCharacteristic](#notifycharacteristic) | 是    | 通知的特征值数据。                               |
1489e41f4b71Sopenharmony_ci| callback | AsyncCallback&lt;void&gt;  | 是    | 回调函数。当通知成功,err为undefined,否则为错误对象。 |
1490e41f4b71Sopenharmony_ci
1491e41f4b71Sopenharmony_ci**错误码**:
1492e41f4b71Sopenharmony_ci
1493e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
1494e41f4b71Sopenharmony_ci
1495e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
1496e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
1497e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
1498e41f4b71Sopenharmony_ci|401 | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verification failed.                 |
1499e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
1500e41f4b71Sopenharmony_ci|2900001 | Service stopped.                         |
1501e41f4b71Sopenharmony_ci|2900003 | Bluetooth disabled.                 |
1502e41f4b71Sopenharmony_ci|2900099 | Operation failed.                        |
1503e41f4b71Sopenharmony_ci
1504e41f4b71Sopenharmony_ci**示例:**
1505e41f4b71Sopenharmony_ci
1506e41f4b71Sopenharmony_ci```js
1507e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
1508e41f4b71Sopenharmony_cilet arrayBufferC = new ArrayBuffer(8);
1509e41f4b71Sopenharmony_cilet notifyCharacter: ble.NotifyCharacteristic = {
1510e41f4b71Sopenharmony_ci    serviceUuid: '00001810-0000-1000-8000-00805F9B34FB',
1511e41f4b71Sopenharmony_ci    characteristicUuid: '00001820-0000-1000-8000-00805F9B34FB',
1512e41f4b71Sopenharmony_ci    characteristicValue: arrayBufferC,
1513e41f4b71Sopenharmony_ci    confirm: true
1514e41f4b71Sopenharmony_ci};
1515e41f4b71Sopenharmony_citry {
1516e41f4b71Sopenharmony_ci    let gattServer: ble.GattServer = ble.createGattServer();
1517e41f4b71Sopenharmony_ci    gattServer.notifyCharacteristicChanged('XX:XX:XX:XX:XX:XX', notifyCharacter, (err: BusinessError) => {
1518e41f4b71Sopenharmony_ci        if (err) {
1519e41f4b71Sopenharmony_ci            console.info('notifyCharacteristicChanged callback failed');
1520e41f4b71Sopenharmony_ci        } else {
1521e41f4b71Sopenharmony_ci            console.info('notifyCharacteristicChanged callback successful');
1522e41f4b71Sopenharmony_ci        }
1523e41f4b71Sopenharmony_ci    });
1524e41f4b71Sopenharmony_ci} catch (err) {
1525e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
1526e41f4b71Sopenharmony_ci}
1527e41f4b71Sopenharmony_ci```
1528e41f4b71Sopenharmony_ci
1529e41f4b71Sopenharmony_ci
1530e41f4b71Sopenharmony_ci### notifyCharacteristicChanged
1531e41f4b71Sopenharmony_ci
1532e41f4b71Sopenharmony_cinotifyCharacteristicChanged(deviceId: string, notifyCharacteristic: NotifyCharacteristic): Promise&lt;void&gt;
1533e41f4b71Sopenharmony_ci
1534e41f4b71Sopenharmony_ciserver端特征值发生变化时,主动通知已连接的client设备。使用Promise异步回调。
1535e41f4b71Sopenharmony_ci
1536e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
1537e41f4b71Sopenharmony_ci
1538e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
1539e41f4b71Sopenharmony_ci
1540e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core1541e41f4b71Sopenharmony_ci
1542e41f4b71Sopenharmony_ci**参数:**
1543e41f4b71Sopenharmony_ci
1544e41f4b71Sopenharmony_ci| 参数名                  | 类型                                       | 必填   | 说明                                      |
1545e41f4b71Sopenharmony_ci| -------------------- | ---------------------------------------- | ---- | --------------------------------------- |
1546e41f4b71Sopenharmony_ci| deviceId             | string                                   | 是    | 接收通知的client端设备地址,例如“XX:XX:XX:XX:XX:XX”。 |
1547e41f4b71Sopenharmony_ci| notifyCharacteristic | [NotifyCharacteristic](#notifycharacteristic) | 是    | 通知的特征值数据。                               |
1548e41f4b71Sopenharmony_ci
1549e41f4b71Sopenharmony_ci**返回值:**
1550e41f4b71Sopenharmony_ci
1551e41f4b71Sopenharmony_ci| 类型                  | 说明            |
1552e41f4b71Sopenharmony_ci| ------------------- | ------------- |
1553e41f4b71Sopenharmony_ci| Promise&lt;void&gt; | 返回promise对象。 |
1554e41f4b71Sopenharmony_ci
1555e41f4b71Sopenharmony_ci**错误码**:
1556e41f4b71Sopenharmony_ci
1557e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
1558e41f4b71Sopenharmony_ci
1559e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
1560e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
1561e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
1562e41f4b71Sopenharmony_ci|401 | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verification failed.                 |
1563e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
1564e41f4b71Sopenharmony_ci|2900001 | Service stopped.                         |
1565e41f4b71Sopenharmony_ci|2900003 | Bluetooth disabled.                 |
1566e41f4b71Sopenharmony_ci|2900099 | Operation failed.                        |
1567e41f4b71Sopenharmony_ci
1568e41f4b71Sopenharmony_ci**示例:**
1569e41f4b71Sopenharmony_ci
1570e41f4b71Sopenharmony_ci```js
1571e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
1572e41f4b71Sopenharmony_cilet arrayBufferC = new ArrayBuffer(8);
1573e41f4b71Sopenharmony_cilet notifyCharacter: ble.NotifyCharacteristic = {
1574e41f4b71Sopenharmony_ci    serviceUuid: '00001810-0000-1000-8000-00805F9B34FB',
1575e41f4b71Sopenharmony_ci    characteristicUuid: '00001820-0000-1000-8000-00805F9B34FB',
1576e41f4b71Sopenharmony_ci    characteristicValue: arrayBufferC,
1577e41f4b71Sopenharmony_ci    confirm: true
1578e41f4b71Sopenharmony_ci};
1579e41f4b71Sopenharmony_citry {
1580e41f4b71Sopenharmony_ci    let gattServer: ble.GattServer = ble.createGattServer();
1581e41f4b71Sopenharmony_ci    gattServer.notifyCharacteristicChanged('XX:XX:XX:XX:XX:XX', notifyCharacter).then(() => {
1582e41f4b71Sopenharmony_ci        console.info('notifyCharacteristicChanged promise successful');
1583e41f4b71Sopenharmony_ci    });
1584e41f4b71Sopenharmony_ci} catch (err) {
1585e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
1586e41f4b71Sopenharmony_ci}
1587e41f4b71Sopenharmony_ci```
1588e41f4b71Sopenharmony_ci
1589e41f4b71Sopenharmony_ci
1590e41f4b71Sopenharmony_ci### sendResponse
1591e41f4b71Sopenharmony_ci
1592e41f4b71Sopenharmony_cisendResponse(serverResponse: ServerResponse): void
1593e41f4b71Sopenharmony_ci
1594e41f4b71Sopenharmony_ciserver端回复client端的读写请求。
1595e41f4b71Sopenharmony_ci
1596e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
1597e41f4b71Sopenharmony_ci
1598e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
1599e41f4b71Sopenharmony_ci
1600e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core1601e41f4b71Sopenharmony_ci
1602e41f4b71Sopenharmony_ci**参数:**
1603e41f4b71Sopenharmony_ci
1604e41f4b71Sopenharmony_ci| 参数名            | 类型                                | 必填   | 说明              |
1605e41f4b71Sopenharmony_ci| -------------- | --------------------------------- | ---- | --------------- |
1606e41f4b71Sopenharmony_ci| serverResponse | [ServerResponse](#serverresponse) | 是    | server端回复的响应数据。 |
1607e41f4b71Sopenharmony_ci
1608e41f4b71Sopenharmony_ci**错误码**:
1609e41f4b71Sopenharmony_ci
1610e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
1611e41f4b71Sopenharmony_ci
1612e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
1613e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
1614e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
1615e41f4b71Sopenharmony_ci|401 | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verification failed.                 |
1616e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
1617e41f4b71Sopenharmony_ci|2900001 | Service stopped.                         |
1618e41f4b71Sopenharmony_ci|2900003 | Bluetooth disabled.                 |
1619e41f4b71Sopenharmony_ci|2900099 | Operation failed.                        |
1620e41f4b71Sopenharmony_ci
1621e41f4b71Sopenharmony_ci**示例:**
1622e41f4b71Sopenharmony_ci
1623e41f4b71Sopenharmony_ci```js
1624e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
1625e41f4b71Sopenharmony_ci/* send response */
1626e41f4b71Sopenharmony_cilet arrayBufferCCC = new ArrayBuffer(8);
1627e41f4b71Sopenharmony_cilet cccValue = new Uint8Array(arrayBufferCCC);
1628e41f4b71Sopenharmony_cicccValue[0] = 1123;
1629e41f4b71Sopenharmony_cilet serverResponse: ble.ServerResponse = {
1630e41f4b71Sopenharmony_ci    deviceId: 'XX:XX:XX:XX:XX:XX',
1631e41f4b71Sopenharmony_ci    transId: 0,
1632e41f4b71Sopenharmony_ci    status: 0,
1633e41f4b71Sopenharmony_ci    offset: 0,
1634e41f4b71Sopenharmony_ci    value: arrayBufferCCC
1635e41f4b71Sopenharmony_ci};
1636e41f4b71Sopenharmony_citry {
1637e41f4b71Sopenharmony_ci    let gattServer: ble.GattServer = ble.createGattServer();
1638e41f4b71Sopenharmony_ci    gattServer.sendResponse(serverResponse);
1639e41f4b71Sopenharmony_ci} catch (err) {
1640e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
1641e41f4b71Sopenharmony_ci}
1642e41f4b71Sopenharmony_ci```
1643e41f4b71Sopenharmony_ci
1644e41f4b71Sopenharmony_ci
1645e41f4b71Sopenharmony_ci### on('characteristicRead')
1646e41f4b71Sopenharmony_ci
1647e41f4b71Sopenharmony_cion(type: 'characteristicRead', callback: Callback&lt;CharacteristicReadRequest&gt;): void
1648e41f4b71Sopenharmony_ci
1649e41f4b71Sopenharmony_ciserver端订阅特征值读请求事件。使用Callback异步回调。
1650e41f4b71Sopenharmony_ci
1651e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
1652e41f4b71Sopenharmony_ci
1653e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
1654e41f4b71Sopenharmony_ci
1655e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core1656e41f4b71Sopenharmony_ci
1657e41f4b71Sopenharmony_ci**参数:**
1658e41f4b71Sopenharmony_ci
1659e41f4b71Sopenharmony_ci| 参数名      | 类型                                       | 必填   | 说明                                    |
1660e41f4b71Sopenharmony_ci| -------- | ---------------------------------------- | ---- | ------------------------------------- |
1661e41f4b71Sopenharmony_ci| type     | string                                   | 是    | 填写"characteristicRead"字符串,表示特征值读请求事件。 |
1662e41f4b71Sopenharmony_ci| callback | Callback&lt;[CharacteristicReadRequest](#characteristicreadrequest)&gt; | 是    | 表示回调函数的入参,client端发送的读请求数据。            |
1663e41f4b71Sopenharmony_ci
1664e41f4b71Sopenharmony_ci**错误码**:
1665e41f4b71Sopenharmony_ci
1666e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
1667e41f4b71Sopenharmony_ci
1668e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
1669e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
1670e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
1671e41f4b71Sopenharmony_ci|401 | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verification failed.                 |
1672e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
1673e41f4b71Sopenharmony_ci
1674e41f4b71Sopenharmony_ci**示例:**
1675e41f4b71Sopenharmony_ci
1676e41f4b71Sopenharmony_ci```js
1677e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
1678e41f4b71Sopenharmony_cilet arrayBufferCCC = new ArrayBuffer(8);
1679e41f4b71Sopenharmony_cilet cccValue = new Uint8Array(arrayBufferCCC);
1680e41f4b71Sopenharmony_cicccValue[0] = 1123;
1681e41f4b71Sopenharmony_cilet gattServer: ble.GattServer = ble.createGattServer();
1682e41f4b71Sopenharmony_cifunction ReadCharacteristicReq(characteristicReadRequest: ble.CharacteristicReadRequest) {
1683e41f4b71Sopenharmony_ci    let deviceId: string = characteristicReadRequest.deviceId;
1684e41f4b71Sopenharmony_ci    let transId: number = characteristicReadRequest.transId;
1685e41f4b71Sopenharmony_ci    let offset: number = characteristicReadRequest.offset;
1686e41f4b71Sopenharmony_ci    let characteristicUuid: string = characteristicReadRequest.characteristicUuid;
1687e41f4b71Sopenharmony_ci
1688e41f4b71Sopenharmony_ci    let serverResponse: ble.ServerResponse = {deviceId: deviceId, transId: transId, status: 0, offset: offset, value:arrayBufferCCC};
1689e41f4b71Sopenharmony_ci
1690e41f4b71Sopenharmony_ci    try {
1691e41f4b71Sopenharmony_ci        gattServer.sendResponse(serverResponse);
1692e41f4b71Sopenharmony_ci    } catch (err) {
1693e41f4b71Sopenharmony_ci        console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
1694e41f4b71Sopenharmony_ci    }
1695e41f4b71Sopenharmony_ci}
1696e41f4b71Sopenharmony_cigattServer.on('characteristicRead', ReadCharacteristicReq);
1697e41f4b71Sopenharmony_ci```
1698e41f4b71Sopenharmony_ci
1699e41f4b71Sopenharmony_ci
1700e41f4b71Sopenharmony_ci### off('characteristicRead')
1701e41f4b71Sopenharmony_ci
1702e41f4b71Sopenharmony_cioff(type: 'characteristicRead', callback?: Callback&lt;CharacteristicReadRequest&gt;): void
1703e41f4b71Sopenharmony_ci
1704e41f4b71Sopenharmony_ciserver端取消订阅特征值读请求事件。
1705e41f4b71Sopenharmony_ci
1706e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
1707e41f4b71Sopenharmony_ci
1708e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
1709e41f4b71Sopenharmony_ci
1710e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core1711e41f4b71Sopenharmony_ci
1712e41f4b71Sopenharmony_ci**参数:**
1713e41f4b71Sopenharmony_ci
1714e41f4b71Sopenharmony_ci| 参数名      | 类型                                       | 必填   | 说明                                       |
1715e41f4b71Sopenharmony_ci| -------- | ---------------------------------------- | ---- | ---------------------------------------- |
1716e41f4b71Sopenharmony_ci| type     | string                                   | 是    | 填写"characteristicRead"字符串,表示特征值读请求事件。    |
1717e41f4b71Sopenharmony_ci| callback | Callback&lt;[CharacteristicReadRequest](#characteristicreadrequest)&gt; | 否    | 表示取消订阅特征值读请求事件上报。不填该参数则取消订阅该type对应的所有回调。 |
1718e41f4b71Sopenharmony_ci
1719e41f4b71Sopenharmony_ci**错误码**:
1720e41f4b71Sopenharmony_ci
1721e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
1722e41f4b71Sopenharmony_ci
1723e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
1724e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
1725e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
1726e41f4b71Sopenharmony_ci|401 | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verification failed.                 |
1727e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
1728e41f4b71Sopenharmony_ci
1729e41f4b71Sopenharmony_ci**示例:**
1730e41f4b71Sopenharmony_ci
1731e41f4b71Sopenharmony_ci```js
1732e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
1733e41f4b71Sopenharmony_citry {
1734e41f4b71Sopenharmony_ci    let gattServer: ble.GattServer = ble.createGattServer();
1735e41f4b71Sopenharmony_ci    gattServer.off('characteristicRead');
1736e41f4b71Sopenharmony_ci} catch (err) {
1737e41f4b71Sopenharmony_ci    console.error("errCode:" + (err as BusinessError).code + ",errMessage:" + (err as BusinessError).message);
1738e41f4b71Sopenharmony_ci}
1739e41f4b71Sopenharmony_ci```
1740e41f4b71Sopenharmony_ci
1741e41f4b71Sopenharmony_ci
1742e41f4b71Sopenharmony_ci### on('characteristicWrite')
1743e41f4b71Sopenharmony_ci
1744e41f4b71Sopenharmony_cion(type: 'characteristicWrite', callback: Callback&lt;CharacteristicWriteRequest&gt;): void
1745e41f4b71Sopenharmony_ci
1746e41f4b71Sopenharmony_ciserver端订阅特征值写请求事件。使用Callback异步回调。
1747e41f4b71Sopenharmony_ci
1748e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
1749e41f4b71Sopenharmony_ci
1750e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
1751e41f4b71Sopenharmony_ci
1752e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core1753e41f4b71Sopenharmony_ci
1754e41f4b71Sopenharmony_ci**参数:**
1755e41f4b71Sopenharmony_ci
1756e41f4b71Sopenharmony_ci| 参数名      | 类型                                       | 必填   | 说明                                     |
1757e41f4b71Sopenharmony_ci| -------- | ---------------------------------------- | ---- | -------------------------------------- |
1758e41f4b71Sopenharmony_ci| type     | string                                   | 是    | 填写"characteristicWrite"字符串,表示特征值写请求事件。 |
1759e41f4b71Sopenharmony_ci| callback | Callback&lt;[CharacteristicWriteRequest](#characteristicwriterequest)&gt; | 是    | 表示回调函数的入参,client端发送的写请求数据。             |
1760e41f4b71Sopenharmony_ci
1761e41f4b71Sopenharmony_ci**错误码**:
1762e41f4b71Sopenharmony_ci
1763e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
1764e41f4b71Sopenharmony_ci
1765e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
1766e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
1767e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
1768e41f4b71Sopenharmony_ci|401 | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verification failed.                 |
1769e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
1770e41f4b71Sopenharmony_ci
1771e41f4b71Sopenharmony_ci**示例:**
1772e41f4b71Sopenharmony_ci
1773e41f4b71Sopenharmony_ci```js
1774e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
1775e41f4b71Sopenharmony_cilet arrayBufferCCC = new ArrayBuffer(8);
1776e41f4b71Sopenharmony_cilet cccValue = new Uint8Array(arrayBufferCCC);
1777e41f4b71Sopenharmony_cilet gattServer: ble.GattServer = ble.createGattServer();
1778e41f4b71Sopenharmony_cifunction WriteCharacteristicReq(characteristicWriteRequest: ble.CharacteristicWriteRequest) {
1779e41f4b71Sopenharmony_ci    let deviceId: string = characteristicWriteRequest.deviceId;
1780e41f4b71Sopenharmony_ci    let transId: number = characteristicWriteRequest.transId;
1781e41f4b71Sopenharmony_ci    let offset: number = characteristicWriteRequest.offset;
1782e41f4b71Sopenharmony_ci    let isPrepared: boolean = characteristicWriteRequest.isPrepared;
1783e41f4b71Sopenharmony_ci    let needRsp: boolean = characteristicWriteRequest.needRsp;
1784e41f4b71Sopenharmony_ci    let value: Uint8Array =  new Uint8Array(characteristicWriteRequest.value);
1785e41f4b71Sopenharmony_ci    let characteristicUuid: string = characteristicWriteRequest.characteristicUuid;
1786e41f4b71Sopenharmony_ci
1787e41f4b71Sopenharmony_ci    cccValue[0] = value[0];
1788e41f4b71Sopenharmony_ci    let serverResponse: ble.ServerResponse = {deviceId: deviceId, transId: transId, status: 0, offset: offset, value:arrayBufferCCC};
1789e41f4b71Sopenharmony_ci
1790e41f4b71Sopenharmony_ci    try {
1791e41f4b71Sopenharmony_ci        gattServer.sendResponse(serverResponse);
1792e41f4b71Sopenharmony_ci    } catch (err) {
1793e41f4b71Sopenharmony_ci        console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
1794e41f4b71Sopenharmony_ci    }
1795e41f4b71Sopenharmony_ci}
1796e41f4b71Sopenharmony_cigattServer.on('characteristicWrite', WriteCharacteristicReq);
1797e41f4b71Sopenharmony_ci```
1798e41f4b71Sopenharmony_ci
1799e41f4b71Sopenharmony_ci
1800e41f4b71Sopenharmony_ci### off('characteristicWrite')
1801e41f4b71Sopenharmony_ci
1802e41f4b71Sopenharmony_cioff(type: 'characteristicWrite', callback?: Callback&lt;CharacteristicWriteRequest&gt;): void
1803e41f4b71Sopenharmony_ci
1804e41f4b71Sopenharmony_ciserver端取消订阅特征值写请求事件。
1805e41f4b71Sopenharmony_ci
1806e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
1807e41f4b71Sopenharmony_ci
1808e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
1809e41f4b71Sopenharmony_ci
1810e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core1811e41f4b71Sopenharmony_ci
1812e41f4b71Sopenharmony_ci**参数:**
1813e41f4b71Sopenharmony_ci
1814e41f4b71Sopenharmony_ci| 参数名      | 类型                                       | 必填   | 说明                                       |
1815e41f4b71Sopenharmony_ci| -------- | ---------------------------------------- | ---- | ---------------------------------------- |
1816e41f4b71Sopenharmony_ci| type     | string                                   | 是    | 填写"characteristicWrite"字符串,表示特征值写请求事件。   |
1817e41f4b71Sopenharmony_ci| callback | Callback&lt;[CharacteristicWriteRequest](#characteristicwriterequest)&gt; | 否    | 表示取消订阅特征值写请求事件上报。不填该参数则取消订阅该type对应的所有回调。 |
1818e41f4b71Sopenharmony_ci
1819e41f4b71Sopenharmony_ci**错误码**:
1820e41f4b71Sopenharmony_ci
1821e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
1822e41f4b71Sopenharmony_ci
1823e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
1824e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
1825e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
1826e41f4b71Sopenharmony_ci|401 | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verification failed.                 |
1827e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
1828e41f4b71Sopenharmony_ci
1829e41f4b71Sopenharmony_ci**示例:**
1830e41f4b71Sopenharmony_ci
1831e41f4b71Sopenharmony_ci```js
1832e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
1833e41f4b71Sopenharmony_citry {
1834e41f4b71Sopenharmony_ci    let gattServer: ble.GattServer = ble.createGattServer();
1835e41f4b71Sopenharmony_ci    gattServer.off('characteristicWrite');
1836e41f4b71Sopenharmony_ci} catch (err) {
1837e41f4b71Sopenharmony_ci    console.error("errCode:" + (err as BusinessError).code + ",errMessage:" + (err as BusinessError).message);
1838e41f4b71Sopenharmony_ci}
1839e41f4b71Sopenharmony_ci```
1840e41f4b71Sopenharmony_ci
1841e41f4b71Sopenharmony_ci
1842e41f4b71Sopenharmony_ci### on('descriptorRead')
1843e41f4b71Sopenharmony_ci
1844e41f4b71Sopenharmony_cion(type: 'descriptorRead', callback: Callback&lt;DescriptorReadRequest&gt;): void
1845e41f4b71Sopenharmony_ci
1846e41f4b71Sopenharmony_ciserver端订阅描述符读请求事件。使用Callback异步回调。
1847e41f4b71Sopenharmony_ci
1848e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
1849e41f4b71Sopenharmony_ci
1850e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
1851e41f4b71Sopenharmony_ci
1852e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core1853e41f4b71Sopenharmony_ci
1854e41f4b71Sopenharmony_ci**参数:**
1855e41f4b71Sopenharmony_ci
1856e41f4b71Sopenharmony_ci| 参数名      | 类型                                       | 必填   | 说明                                |
1857e41f4b71Sopenharmony_ci| -------- | ---------------------------------------- | ---- | --------------------------------- |
1858e41f4b71Sopenharmony_ci| type     | string                                   | 是    | 填写"descriptorRead"字符串,表示描述符读请求事件。 |
1859e41f4b71Sopenharmony_ci| callback | Callback&lt;[DescriptorReadRequest](#descriptorreadrequest)&gt; | 是    | 表示回调函数的入参,client端发送的读请求数据。        |
1860e41f4b71Sopenharmony_ci
1861e41f4b71Sopenharmony_ci**错误码**:
1862e41f4b71Sopenharmony_ci
1863e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
1864e41f4b71Sopenharmony_ci
1865e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
1866e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
1867e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
1868e41f4b71Sopenharmony_ci|401 | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verification failed.                 |
1869e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
1870e41f4b71Sopenharmony_ci
1871e41f4b71Sopenharmony_ci**示例:**
1872e41f4b71Sopenharmony_ci
1873e41f4b71Sopenharmony_ci```js
1874e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
1875e41f4b71Sopenharmony_cilet arrayBufferDesc = new ArrayBuffer(8);
1876e41f4b71Sopenharmony_cilet descValue = new Uint8Array(arrayBufferDesc);
1877e41f4b71Sopenharmony_cidescValue[0] = 1101;
1878e41f4b71Sopenharmony_cilet gattServer: ble.GattServer = ble.createGattServer();
1879e41f4b71Sopenharmony_cifunction ReadDescriptorReq(descriptorReadRequest: ble.DescriptorReadRequest) {
1880e41f4b71Sopenharmony_ci    let deviceId: string = descriptorReadRequest.deviceId;
1881e41f4b71Sopenharmony_ci    let transId: number = descriptorReadRequest.transId;
1882e41f4b71Sopenharmony_ci    let offset: number = descriptorReadRequest.offset;
1883e41f4b71Sopenharmony_ci    let descriptorUuid: string = descriptorReadRequest.descriptorUuid;
1884e41f4b71Sopenharmony_ci
1885e41f4b71Sopenharmony_ci    let serverResponse: ble.ServerResponse = {deviceId: deviceId, transId: transId, status: 0, offset: offset, value:arrayBufferDesc};
1886e41f4b71Sopenharmony_ci
1887e41f4b71Sopenharmony_ci    try {
1888e41f4b71Sopenharmony_ci        gattServer.sendResponse(serverResponse);
1889e41f4b71Sopenharmony_ci    } catch (err) {
1890e41f4b71Sopenharmony_ci        console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
1891e41f4b71Sopenharmony_ci    }
1892e41f4b71Sopenharmony_ci}
1893e41f4b71Sopenharmony_cigattServer.on('descriptorRead', ReadDescriptorReq);
1894e41f4b71Sopenharmony_ci```
1895e41f4b71Sopenharmony_ci
1896e41f4b71Sopenharmony_ci
1897e41f4b71Sopenharmony_ci### off('descriptorRead')
1898e41f4b71Sopenharmony_ci
1899e41f4b71Sopenharmony_cioff(type: 'descriptorRead', callback?: Callback&lt;DescriptorReadRequest&gt;): void
1900e41f4b71Sopenharmony_ci
1901e41f4b71Sopenharmony_ciserver端取消订阅描述符读请求事件。
1902e41f4b71Sopenharmony_ci
1903e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
1904e41f4b71Sopenharmony_ci
1905e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
1906e41f4b71Sopenharmony_ci
1907e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core1908e41f4b71Sopenharmony_ci
1909e41f4b71Sopenharmony_ci**参数:**
1910e41f4b71Sopenharmony_ci
1911e41f4b71Sopenharmony_ci| 参数名      | 类型                                       | 必填   | 说明                                       |
1912e41f4b71Sopenharmony_ci| -------- | ---------------------------------------- | ---- | ---------------------------------------- |
1913e41f4b71Sopenharmony_ci| type     | string                                   | 是    | 填写"descriptorRead"字符串,表示描述符读请求事件。        |
1914e41f4b71Sopenharmony_ci| callback | Callback&lt;[DescriptorReadRequest](#descriptorreadrequest)&gt; | 否    | 表示取消订阅描述符读请求事件上报。不填该参数则取消订阅该type对应的所有回调。 |
1915e41f4b71Sopenharmony_ci
1916e41f4b71Sopenharmony_ci**错误码**:
1917e41f4b71Sopenharmony_ci
1918e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
1919e41f4b71Sopenharmony_ci
1920e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
1921e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
1922e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
1923e41f4b71Sopenharmony_ci|401 | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verification failed.                 |
1924e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
1925e41f4b71Sopenharmony_ci
1926e41f4b71Sopenharmony_ci**示例:**
1927e41f4b71Sopenharmony_ci
1928e41f4b71Sopenharmony_ci```js
1929e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
1930e41f4b71Sopenharmony_citry {
1931e41f4b71Sopenharmony_ci    let gattServer: ble.GattServer = ble.createGattServer();
1932e41f4b71Sopenharmony_ci    gattServer.off('descriptorRead');
1933e41f4b71Sopenharmony_ci} catch (err) {
1934e41f4b71Sopenharmony_ci    console.error("errCode:" + (err as BusinessError).code + ",errMessage:" + (err as BusinessError).message);
1935e41f4b71Sopenharmony_ci}
1936e41f4b71Sopenharmony_ci```
1937e41f4b71Sopenharmony_ci
1938e41f4b71Sopenharmony_ci
1939e41f4b71Sopenharmony_ci### on('descriptorWrite')
1940e41f4b71Sopenharmony_ci
1941e41f4b71Sopenharmony_cion(type: 'descriptorWrite', callback: Callback&lt;DescriptorWriteRequest&gt;): void
1942e41f4b71Sopenharmony_ci
1943e41f4b71Sopenharmony_ciserver端订阅描述符写请求事件。使用Callback异步回调。
1944e41f4b71Sopenharmony_ci
1945e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
1946e41f4b71Sopenharmony_ci
1947e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
1948e41f4b71Sopenharmony_ci
1949e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core1950e41f4b71Sopenharmony_ci
1951e41f4b71Sopenharmony_ci**参数:**
1952e41f4b71Sopenharmony_ci
1953e41f4b71Sopenharmony_ci| 参数名      | 类型                                       | 必填   | 说明                                 |
1954e41f4b71Sopenharmony_ci| -------- | ---------------------------------------- | ---- | ---------------------------------- |
1955e41f4b71Sopenharmony_ci| type     | string                                   | 是    | 填写"descriptorWrite"字符串,表示描述符写请求事件。 |
1956e41f4b71Sopenharmony_ci| callback | Callback&lt;[DescriptorWriteRequest](#descriptorwriterequest)&gt; | 是    | 表示回调函数的入参,client端发送的写请求数据。         |
1957e41f4b71Sopenharmony_ci
1958e41f4b71Sopenharmony_ci**错误码**:
1959e41f4b71Sopenharmony_ci
1960e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
1961e41f4b71Sopenharmony_ci
1962e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
1963e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
1964e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
1965e41f4b71Sopenharmony_ci|401 | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verification failed.                 |
1966e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
1967e41f4b71Sopenharmony_ci
1968e41f4b71Sopenharmony_ci**示例:**
1969e41f4b71Sopenharmony_ci
1970e41f4b71Sopenharmony_ci```js
1971e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
1972e41f4b71Sopenharmony_cilet arrayBufferDesc = new ArrayBuffer(8);
1973e41f4b71Sopenharmony_cilet descValue = new Uint8Array(arrayBufferDesc);
1974e41f4b71Sopenharmony_cilet gattServer: ble.GattServer = ble.createGattServer();
1975e41f4b71Sopenharmony_cifunction WriteDescriptorReq(descriptorWriteRequest: ble.DescriptorWriteRequest) {
1976e41f4b71Sopenharmony_ci    let deviceId: string = descriptorWriteRequest.deviceId;
1977e41f4b71Sopenharmony_ci    let transId: number = descriptorWriteRequest.transId;
1978e41f4b71Sopenharmony_ci    let offset: number = descriptorWriteRequest.offset;
1979e41f4b71Sopenharmony_ci    let isPrepared: boolean = descriptorWriteRequest.isPrepared;
1980e41f4b71Sopenharmony_ci    let needRsp: boolean = descriptorWriteRequest.needRsp;
1981e41f4b71Sopenharmony_ci    let value: Uint8Array = new Uint8Array(descriptorWriteRequest.value);
1982e41f4b71Sopenharmony_ci    let descriptorUuid: string = descriptorWriteRequest.descriptorUuid;
1983e41f4b71Sopenharmony_ci
1984e41f4b71Sopenharmony_ci    descValue[0] = value[0];
1985e41f4b71Sopenharmony_ci    let serverResponse: ble.ServerResponse = {deviceId: deviceId, transId: transId, status: 0, offset: offset, value:arrayBufferDesc};
1986e41f4b71Sopenharmony_ci
1987e41f4b71Sopenharmony_ci    try {
1988e41f4b71Sopenharmony_ci        gattServer.sendResponse(serverResponse);
1989e41f4b71Sopenharmony_ci    } catch (err) {
1990e41f4b71Sopenharmony_ci        console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
1991e41f4b71Sopenharmony_ci    }
1992e41f4b71Sopenharmony_ci}
1993e41f4b71Sopenharmony_cigattServer.on('descriptorWrite', WriteDescriptorReq);
1994e41f4b71Sopenharmony_ci```
1995e41f4b71Sopenharmony_ci
1996e41f4b71Sopenharmony_ci
1997e41f4b71Sopenharmony_ci### off('descriptorWrite')
1998e41f4b71Sopenharmony_ci
1999e41f4b71Sopenharmony_cioff(type: 'descriptorWrite', callback?: Callback&lt;DescriptorWriteRequest&gt;): void
2000e41f4b71Sopenharmony_ci
2001e41f4b71Sopenharmony_ciserver端取消订阅描述符写请求事件。
2002e41f4b71Sopenharmony_ci
2003e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
2004e41f4b71Sopenharmony_ci
2005e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
2006e41f4b71Sopenharmony_ci
2007e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core2008e41f4b71Sopenharmony_ci
2009e41f4b71Sopenharmony_ci**参数:**
2010e41f4b71Sopenharmony_ci
2011e41f4b71Sopenharmony_ci| 参数名      | 类型                                       | 必填   | 说明                                       |
2012e41f4b71Sopenharmony_ci| -------- | ---------------------------------------- | ---- | ---------------------------------------- |
2013e41f4b71Sopenharmony_ci| type     | string                                   | 是    | 填写"descriptorWrite"字符串,表示描述符写请求事件。       |
2014e41f4b71Sopenharmony_ci| callback | Callback&lt;[DescriptorWriteRequest](#descriptorwriterequest)&gt; | 否    | 表示取消订阅描述符写请求事件上报。不填该参数则取消订阅该type对应的所有回调。 |
2015e41f4b71Sopenharmony_ci
2016e41f4b71Sopenharmony_ci**错误码**:
2017e41f4b71Sopenharmony_ci
2018e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
2019e41f4b71Sopenharmony_ci
2020e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
2021e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
2022e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
2023e41f4b71Sopenharmony_ci|401 | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verification failed.                 |
2024e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
2025e41f4b71Sopenharmony_ci
2026e41f4b71Sopenharmony_ci**示例:**
2027e41f4b71Sopenharmony_ci
2028e41f4b71Sopenharmony_ci```js
2029e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
2030e41f4b71Sopenharmony_citry {
2031e41f4b71Sopenharmony_cilet gattServer: ble.GattServer = ble.createGattServer();
2032e41f4b71Sopenharmony_cigattServer.off('descriptorWrite');
2033e41f4b71Sopenharmony_ci} catch (err) {
2034e41f4b71Sopenharmony_ci    console.error("errCode:" + (err as BusinessError).code + ",errMessage:" + (err as BusinessError).message);
2035e41f4b71Sopenharmony_ci}
2036e41f4b71Sopenharmony_ci```
2037e41f4b71Sopenharmony_ci
2038e41f4b71Sopenharmony_ci
2039e41f4b71Sopenharmony_ci### on('connectionStateChange')
2040e41f4b71Sopenharmony_ci
2041e41f4b71Sopenharmony_cion(type: 'connectionStateChange', callback: Callback&lt;BLEConnectionChangeState&gt;): void
2042e41f4b71Sopenharmony_ci
2043e41f4b71Sopenharmony_ciserver端订阅BLE连接状态变化事件。使用Callback异步回调。
2044e41f4b71Sopenharmony_ci
2045e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
2046e41f4b71Sopenharmony_ci
2047e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
2048e41f4b71Sopenharmony_ci
2049e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core2050e41f4b71Sopenharmony_ci
2051e41f4b71Sopenharmony_ci**参数:**
2052e41f4b71Sopenharmony_ci
2053e41f4b71Sopenharmony_ci| 参数名      | 类型                                       | 必填   | 说明                                       |
2054e41f4b71Sopenharmony_ci| -------- | ---------------------------------------- | ---- | ---------------------------------------- |
2055e41f4b71Sopenharmony_ci| type     | string                                   | 是    | 填写"connectionStateChange"字符串,表示BLE连接状态变化事件。 |
2056e41f4b71Sopenharmony_ci| callback | Callback&lt;[BLEConnectionChangeState](#bleconnectionchangestate)&gt; | 是    | 表示回调函数的入参,连接状态。                          |
2057e41f4b71Sopenharmony_ci
2058e41f4b71Sopenharmony_ci**错误码**:
2059e41f4b71Sopenharmony_ci
2060e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
2061e41f4b71Sopenharmony_ci
2062e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
2063e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
2064e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
2065e41f4b71Sopenharmony_ci|401 | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verification failed.                 |
2066e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
2067e41f4b71Sopenharmony_ci
2068e41f4b71Sopenharmony_ci**示例:**
2069e41f4b71Sopenharmony_ci
2070e41f4b71Sopenharmony_ci```js
2071e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
2072e41f4b71Sopenharmony_ciimport { constant } from '@kit.ConnectivityKit';
2073e41f4b71Sopenharmony_cilet Connected = (bleConnectionChangeState: ble.BLEConnectionChangeState) => {
2074e41f4b71Sopenharmony_ci    let deviceId: string = bleConnectionChangeState.deviceId;
2075e41f4b71Sopenharmony_ci    let status: constant.ProfileConnectionState = bleConnectionChangeState.state;
2076e41f4b71Sopenharmony_ci}
2077e41f4b71Sopenharmony_citry {
2078e41f4b71Sopenharmony_ci    let gattServer: ble.GattServer = ble.createGattServer();
2079e41f4b71Sopenharmony_ci    gattServer.on('connectionStateChange', Connected);
2080e41f4b71Sopenharmony_ci} catch (err) {
2081e41f4b71Sopenharmony_ci    console.error("errCode:" + (err as BusinessError).code + ",errMessage:" + (err as BusinessError).message);
2082e41f4b71Sopenharmony_ci}
2083e41f4b71Sopenharmony_ci```
2084e41f4b71Sopenharmony_ci
2085e41f4b71Sopenharmony_ci
2086e41f4b71Sopenharmony_ci### off('connectionStateChange')
2087e41f4b71Sopenharmony_ci
2088e41f4b71Sopenharmony_cioff(type: 'connectionStateChange', callback?: Callback&lt;BLEConnectionChangeState&gt;): void
2089e41f4b71Sopenharmony_ci
2090e41f4b71Sopenharmony_ciserver端取消订阅BLE连接状态变化事件。
2091e41f4b71Sopenharmony_ci
2092e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
2093e41f4b71Sopenharmony_ci
2094e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
2095e41f4b71Sopenharmony_ci
2096e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core2097e41f4b71Sopenharmony_ci
2098e41f4b71Sopenharmony_ci**参数:**
2099e41f4b71Sopenharmony_ci
2100e41f4b71Sopenharmony_ci| 参数名      | 类型                                       | 必填   | 说明                                       |
2101e41f4b71Sopenharmony_ci| -------- | ---------------------------------------- | ---- | ---------------------------------------- |
2102e41f4b71Sopenharmony_ci| type     | string                                   | 是    | 填写"connectionStateChange"字符串,表示BLE连接状态变化事件。 |
2103e41f4b71Sopenharmony_ci| callback | Callback&lt;[BLEConnectionChangeState](#bleconnectionchangestate)&gt; | 否    | 表示取消订阅BLE连接状态变化事件。不填该参数则取消订阅该type对应的所有回调。 |
2104e41f4b71Sopenharmony_ci
2105e41f4b71Sopenharmony_ci**错误码**:
2106e41f4b71Sopenharmony_ci
2107e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
2108e41f4b71Sopenharmony_ci
2109e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
2110e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
2111e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
2112e41f4b71Sopenharmony_ci|401 | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verification failed.                 |
2113e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
2114e41f4b71Sopenharmony_ci
2115e41f4b71Sopenharmony_ci**示例:**
2116e41f4b71Sopenharmony_ci
2117e41f4b71Sopenharmony_ci```js
2118e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
2119e41f4b71Sopenharmony_citry {
2120e41f4b71Sopenharmony_ci    let gattServer: ble.GattServer = ble.createGattServer();
2121e41f4b71Sopenharmony_ci    gattServer.off('connectionStateChange');
2122e41f4b71Sopenharmony_ci} catch (err) {
2123e41f4b71Sopenharmony_ci    console.error("errCode:" + (err as BusinessError).code + ",errMessage:" + (err as BusinessError).message);
2124e41f4b71Sopenharmony_ci}
2125e41f4b71Sopenharmony_ci```
2126e41f4b71Sopenharmony_ci
2127e41f4b71Sopenharmony_ci
2128e41f4b71Sopenharmony_ci### on('BLEMtuChange')
2129e41f4b71Sopenharmony_ci
2130e41f4b71Sopenharmony_cion(type: 'BLEMtuChange', callback: Callback&lt;number&gt;): void
2131e41f4b71Sopenharmony_ci
2132e41f4b71Sopenharmony_ciserver端订阅MTU状态变化事件。使用Callback异步回调。
2133e41f4b71Sopenharmony_ci
2134e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
2135e41f4b71Sopenharmony_ci
2136e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core2137e41f4b71Sopenharmony_ci
2138e41f4b71Sopenharmony_ci**参数:**
2139e41f4b71Sopenharmony_ci
2140e41f4b71Sopenharmony_ci| 参数名      | 类型                                       | 必填   | 说明                                       |
2141e41f4b71Sopenharmony_ci| -------- | ---------------------------------------- | ---- | ---------------------------------------- |
2142e41f4b71Sopenharmony_ci| type     | string                                   | 是    | 必须填写"BLEMtuChange"字符串,表示MTU状态变化事件。填写不正确将导致回调无法注册。 |
2143e41f4b71Sopenharmony_ci| callback | Callback&lt;number&gt; | 是    | 返回MTU字节数的值,通过注册回调函数获取。 |
2144e41f4b71Sopenharmony_ci
2145e41f4b71Sopenharmony_ci**错误码**:
2146e41f4b71Sopenharmony_ci
2147e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
2148e41f4b71Sopenharmony_ci
2149e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
2150e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
2151e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
2152e41f4b71Sopenharmony_ci|401 | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verification failed.                 |
2153e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
2154e41f4b71Sopenharmony_ci
2155e41f4b71Sopenharmony_ci**示例:**
2156e41f4b71Sopenharmony_ci
2157e41f4b71Sopenharmony_ci```js
2158e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
2159e41f4b71Sopenharmony_citry {
2160e41f4b71Sopenharmony_ci    let gattServer: ble.GattServer = ble.createGattServer();
2161e41f4b71Sopenharmony_ci    gattServer.on('BLEMtuChange', (mtu: number) => {
2162e41f4b71Sopenharmony_ci    console.info('BLEMtuChange, mtu: ' + mtu);
2163e41f4b71Sopenharmony_ci    });
2164e41f4b71Sopenharmony_ci} catch (err) {
2165e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
2166e41f4b71Sopenharmony_ci}
2167e41f4b71Sopenharmony_ci```
2168e41f4b71Sopenharmony_ci
2169e41f4b71Sopenharmony_ci
2170e41f4b71Sopenharmony_ci### off('BLEMtuChange')
2171e41f4b71Sopenharmony_ci
2172e41f4b71Sopenharmony_cioff(type: 'BLEMtuChange', callback?: Callback&lt;number&gt;): void
2173e41f4b71Sopenharmony_ci
2174e41f4b71Sopenharmony_ciserver端取消订阅MTU状态变化事件。
2175e41f4b71Sopenharmony_ci
2176e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
2177e41f4b71Sopenharmony_ci
2178e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core2179e41f4b71Sopenharmony_ci
2180e41f4b71Sopenharmony_ci**参数:**
2181e41f4b71Sopenharmony_ci
2182e41f4b71Sopenharmony_ci| 参数名      | 类型                                       | 必填   | 说明                                       |
2183e41f4b71Sopenharmony_ci| -------- | ---------------------------------------- | ---- | ---------------------------------------- |
2184e41f4b71Sopenharmony_ci| type     | string                                   | 是    | 必须填写"BLEMtuChange"字符串,表示MTU状态变化事件。填写不正确将导致回调无法注册。 |
2185e41f4b71Sopenharmony_ci| callback | Callback&lt;number&gt; | 否    | 返回MTU字节数的值,通过注册回调函数获取。不填该参数则取消订阅该type对应的所有回调。 |
2186e41f4b71Sopenharmony_ci
2187e41f4b71Sopenharmony_ci**错误码**:
2188e41f4b71Sopenharmony_ci
2189e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
2190e41f4b71Sopenharmony_ci
2191e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
2192e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
2193e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
2194e41f4b71Sopenharmony_ci|401 | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verification failed.                 |
2195e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
2196e41f4b71Sopenharmony_ci
2197e41f4b71Sopenharmony_ci**示例:**
2198e41f4b71Sopenharmony_ci
2199e41f4b71Sopenharmony_ci```js
2200e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
2201e41f4b71Sopenharmony_citry {
2202e41f4b71Sopenharmony_ci    let gattServer: ble.GattServer = ble.createGattServer();
2203e41f4b71Sopenharmony_ci    gattServer.off('BLEMtuChange');
2204e41f4b71Sopenharmony_ci} catch (err) {
2205e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
2206e41f4b71Sopenharmony_ci}
2207e41f4b71Sopenharmony_ci```
2208e41f4b71Sopenharmony_ci
2209e41f4b71Sopenharmony_ci
2210e41f4b71Sopenharmony_ci## GattClientDevice
2211e41f4b71Sopenharmony_ci
2212e41f4b71Sopenharmony_ciclient端类,使用client端方法之前需要创建该类的实例进行操作,通过createGattClientDevice(deviceId: string)方法构造此实例。
2213e41f4b71Sopenharmony_ci
2214e41f4b71Sopenharmony_ci
2215e41f4b71Sopenharmony_ci### connect
2216e41f4b71Sopenharmony_ci
2217e41f4b71Sopenharmony_ciconnect(): void
2218e41f4b71Sopenharmony_ci
2219e41f4b71Sopenharmony_ciclient端发起连接远端蓝牙低功耗设备。
2220e41f4b71Sopenharmony_ci
2221e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
2222e41f4b71Sopenharmony_ci
2223e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
2224e41f4b71Sopenharmony_ci
2225e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core2226e41f4b71Sopenharmony_ci
2227e41f4b71Sopenharmony_ci**错误码**:
2228e41f4b71Sopenharmony_ci
2229e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
2230e41f4b71Sopenharmony_ci
2231e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
2232e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
2233e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
2234e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
2235e41f4b71Sopenharmony_ci|2900001 | Service stopped.                         |
2236e41f4b71Sopenharmony_ci|2900003 | Bluetooth disabled.                 |
2237e41f4b71Sopenharmony_ci|2900099 | Operation failed.                        |
2238e41f4b71Sopenharmony_ci
2239e41f4b71Sopenharmony_ci**示例:**
2240e41f4b71Sopenharmony_ci
2241e41f4b71Sopenharmony_ci```js
2242e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
2243e41f4b71Sopenharmony_citry {
2244e41f4b71Sopenharmony_ci    let device: ble.GattClientDevice = ble.createGattClientDevice('XX:XX:XX:XX:XX:XX');
2245e41f4b71Sopenharmony_ci    device.connect();
2246e41f4b71Sopenharmony_ci} catch (err) {
2247e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
2248e41f4b71Sopenharmony_ci}
2249e41f4b71Sopenharmony_ci```
2250e41f4b71Sopenharmony_ci
2251e41f4b71Sopenharmony_ci
2252e41f4b71Sopenharmony_ci### disconnect
2253e41f4b71Sopenharmony_ci
2254e41f4b71Sopenharmony_cidisconnect(): void
2255e41f4b71Sopenharmony_ci
2256e41f4b71Sopenharmony_ciclient端断开与远端蓝牙低功耗设备的连接。
2257e41f4b71Sopenharmony_ci
2258e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
2259e41f4b71Sopenharmony_ci
2260e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
2261e41f4b71Sopenharmony_ci
2262e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core2263e41f4b71Sopenharmony_ci
2264e41f4b71Sopenharmony_ci**错误码**:
2265e41f4b71Sopenharmony_ci
2266e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
2267e41f4b71Sopenharmony_ci
2268e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
2269e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
2270e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
2271e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
2272e41f4b71Sopenharmony_ci|2900001 | Service stopped.                         |
2273e41f4b71Sopenharmony_ci|2900003 | Bluetooth disabled.                 |
2274e41f4b71Sopenharmony_ci|2900099 | Operation failed.                        |
2275e41f4b71Sopenharmony_ci
2276e41f4b71Sopenharmony_ci**示例:**
2277e41f4b71Sopenharmony_ci
2278e41f4b71Sopenharmony_ci```js
2279e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
2280e41f4b71Sopenharmony_citry {
2281e41f4b71Sopenharmony_ci    let device: ble.GattClientDevice = ble.createGattClientDevice('XX:XX:XX:XX:XX:XX');
2282e41f4b71Sopenharmony_ci    device.disconnect();
2283e41f4b71Sopenharmony_ci} catch (err) {
2284e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
2285e41f4b71Sopenharmony_ci}
2286e41f4b71Sopenharmony_ci```
2287e41f4b71Sopenharmony_ci
2288e41f4b71Sopenharmony_ci
2289e41f4b71Sopenharmony_ci### close
2290e41f4b71Sopenharmony_ci
2291e41f4b71Sopenharmony_ciclose(): void
2292e41f4b71Sopenharmony_ci
2293e41f4b71Sopenharmony_ci关闭客户端功能,注销client在协议栈的注册,调用该接口后[GattClientDevice](#gattclientdevice)实例将不能再使用。
2294e41f4b71Sopenharmony_ci
2295e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
2296e41f4b71Sopenharmony_ci
2297e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
2298e41f4b71Sopenharmony_ci
2299e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core2300e41f4b71Sopenharmony_ci
2301e41f4b71Sopenharmony_ci**错误码**:
2302e41f4b71Sopenharmony_ci
2303e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
2304e41f4b71Sopenharmony_ci
2305e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
2306e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
2307e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
2308e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
2309e41f4b71Sopenharmony_ci|2900001 | Service stopped.                         |
2310e41f4b71Sopenharmony_ci|2900003 | Bluetooth disabled.                 |
2311e41f4b71Sopenharmony_ci|2900099 | Operation failed.                        |
2312e41f4b71Sopenharmony_ci
2313e41f4b71Sopenharmony_ci**示例:**
2314e41f4b71Sopenharmony_ci
2315e41f4b71Sopenharmony_ci```js
2316e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
2317e41f4b71Sopenharmony_citry {
2318e41f4b71Sopenharmony_ci    let device: ble.GattClientDevice = ble.createGattClientDevice('XX:XX:XX:XX:XX:XX');
2319e41f4b71Sopenharmony_ci    device.close();
2320e41f4b71Sopenharmony_ci} catch (err) {
2321e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
2322e41f4b71Sopenharmony_ci}
2323e41f4b71Sopenharmony_ci```
2324e41f4b71Sopenharmony_ci
2325e41f4b71Sopenharmony_ci
2326e41f4b71Sopenharmony_ci### getDeviceName
2327e41f4b71Sopenharmony_ci
2328e41f4b71Sopenharmony_cigetDeviceName(callback: AsyncCallback&lt;string&gt;): void
2329e41f4b71Sopenharmony_ci
2330e41f4b71Sopenharmony_ciclient获取远端蓝牙低功耗设备名。使用Callback异步回调。
2331e41f4b71Sopenharmony_ci
2332e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
2333e41f4b71Sopenharmony_ci
2334e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
2335e41f4b71Sopenharmony_ci
2336e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core2337e41f4b71Sopenharmony_ci
2338e41f4b71Sopenharmony_ci**参数:**
2339e41f4b71Sopenharmony_ci
2340e41f4b71Sopenharmony_ci| 参数名      | 类型                          | 必填   | 说明                              |
2341e41f4b71Sopenharmony_ci| -------- | --------------------------- | ---- | ------------------------------- |
2342e41f4b71Sopenharmony_ci| callback | AsyncCallback&lt;string&gt; | 是    | client获取对端server设备名,通过注册回调函数获取。 |
2343e41f4b71Sopenharmony_ci
2344e41f4b71Sopenharmony_ci**错误码**:
2345e41f4b71Sopenharmony_ci
2346e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
2347e41f4b71Sopenharmony_ci
2348e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
2349e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
2350e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
2351e41f4b71Sopenharmony_ci|401 | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types.          |
2352e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
2353e41f4b71Sopenharmony_ci|2900001 | Service stopped.                         |
2354e41f4b71Sopenharmony_ci|2900099 | Operation failed.                        |
2355e41f4b71Sopenharmony_ci
2356e41f4b71Sopenharmony_ci**示例:**
2357e41f4b71Sopenharmony_ci
2358e41f4b71Sopenharmony_ci```js
2359e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
2360e41f4b71Sopenharmony_ci// callback
2361e41f4b71Sopenharmony_citry {
2362e41f4b71Sopenharmony_ci    let gattClient: ble.GattClientDevice = ble.createGattClientDevice("XX:XX:XX:XX:XX:XX");
2363e41f4b71Sopenharmony_ci    gattClient.connect();
2364e41f4b71Sopenharmony_ci    gattClient.getDeviceName((err: BusinessError, data: string)=> {
2365e41f4b71Sopenharmony_ci        console.info('device name err ' + JSON.stringify(err));
2366e41f4b71Sopenharmony_ci        console.info('device name' + JSON.stringify(data));
2367e41f4b71Sopenharmony_ci    })
2368e41f4b71Sopenharmony_ci} catch (err) {
2369e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
2370e41f4b71Sopenharmony_ci}
2371e41f4b71Sopenharmony_ci```
2372e41f4b71Sopenharmony_ci
2373e41f4b71Sopenharmony_ci
2374e41f4b71Sopenharmony_ci### getDeviceName
2375e41f4b71Sopenharmony_ci
2376e41f4b71Sopenharmony_cigetDeviceName(): Promise&lt;string&gt;
2377e41f4b71Sopenharmony_ci
2378e41f4b71Sopenharmony_ciclient获取远端蓝牙低功耗设备名。使用Promise异步回调。
2379e41f4b71Sopenharmony_ci
2380e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
2381e41f4b71Sopenharmony_ci
2382e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
2383e41f4b71Sopenharmony_ci
2384e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core2385e41f4b71Sopenharmony_ci
2386e41f4b71Sopenharmony_ci**返回值:**
2387e41f4b71Sopenharmony_ci
2388e41f4b71Sopenharmony_ci| 类型                    | 说明                                 |
2389e41f4b71Sopenharmony_ci| --------------------- | ---------------------------------- |
2390e41f4b71Sopenharmony_ci| Promise&lt;string&gt; | client获取对端server设备名,通过promise形式获取。 |
2391e41f4b71Sopenharmony_ci
2392e41f4b71Sopenharmony_ci**错误码**:
2393e41f4b71Sopenharmony_ci
2394e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
2395e41f4b71Sopenharmony_ci
2396e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
2397e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
2398e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
2399e41f4b71Sopenharmony_ci|401 | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types.             |
2400e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
2401e41f4b71Sopenharmony_ci|2900001 | Service stopped.                         |
2402e41f4b71Sopenharmony_ci|2900099 | Operation failed.                        |
2403e41f4b71Sopenharmony_ci
2404e41f4b71Sopenharmony_ci**示例:**
2405e41f4b71Sopenharmony_ci
2406e41f4b71Sopenharmony_ci```js
2407e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
2408e41f4b71Sopenharmony_ci// promise
2409e41f4b71Sopenharmony_citry {
2410e41f4b71Sopenharmony_ci    let gattClient: ble.GattClientDevice = ble.createGattClientDevice("XX:XX:XX:XX:XX:XX");
2411e41f4b71Sopenharmony_ci    gattClient.connect();
2412e41f4b71Sopenharmony_ci    gattClient.getDeviceName().then((data: string) => {
2413e41f4b71Sopenharmony_ci        console.info('device name' + JSON.stringify(data));
2414e41f4b71Sopenharmony_ci    })
2415e41f4b71Sopenharmony_ci} catch (err) {
2416e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
2417e41f4b71Sopenharmony_ci}
2418e41f4b71Sopenharmony_ci```
2419e41f4b71Sopenharmony_ci
2420e41f4b71Sopenharmony_ci
2421e41f4b71Sopenharmony_ci### getServices
2422e41f4b71Sopenharmony_ci
2423e41f4b71Sopenharmony_cigetServices(callback: AsyncCallback&lt;Array&lt;GattService&gt;&gt;): void
2424e41f4b71Sopenharmony_ci
2425e41f4b71Sopenharmony_ciclient端获取蓝牙低功耗设备的所有服务,即服务发现。使用Callback异步回调。
2426e41f4b71Sopenharmony_ci
2427e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
2428e41f4b71Sopenharmony_ci
2429e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
2430e41f4b71Sopenharmony_ci
2431e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core2432e41f4b71Sopenharmony_ci
2433e41f4b71Sopenharmony_ci**参数:**
2434e41f4b71Sopenharmony_ci
2435e41f4b71Sopenharmony_ci| 参数名      | 类型                                       | 必填   | 说明                       |
2436e41f4b71Sopenharmony_ci| -------- | ---------------------------------------- | ---- | ------------------------ |
2437e41f4b71Sopenharmony_ci| callback | AsyncCallback&lt;Array&lt;[GattService](#gattservice)&gt;&gt; | 是    | client进行服务发现,通过注册回调函数获取。 |
2438e41f4b71Sopenharmony_ci
2439e41f4b71Sopenharmony_ci**错误码**:
2440e41f4b71Sopenharmony_ci
2441e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
2442e41f4b71Sopenharmony_ci
2443e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
2444e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
2445e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
2446e41f4b71Sopenharmony_ci|401 | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types.            |
2447e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
2448e41f4b71Sopenharmony_ci|2900001 | Service stopped.                         |
2449e41f4b71Sopenharmony_ci|2900099 | Operation failed.                        |
2450e41f4b71Sopenharmony_ci
2451e41f4b71Sopenharmony_ci**示例:**
2452e41f4b71Sopenharmony_ci
2453e41f4b71Sopenharmony_ci```js
2454e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
2455e41f4b71Sopenharmony_ci// callback 模式
2456e41f4b71Sopenharmony_cilet getServices = (code: BusinessError, gattServices: Array<ble.GattService>) => {
2457e41f4b71Sopenharmony_ci    if (code && code.code != 0) {
2458e41f4b71Sopenharmony_ci        console.info('bluetooth code is ' + code.code);
2459e41f4b71Sopenharmony_ci        return;
2460e41f4b71Sopenharmony_ci    }
2461e41f4b71Sopenharmony_ci    let services: Array<ble.GattService> = gattServices;
2462e41f4b71Sopenharmony_ci    console.info('bluetooth services size is ', services.length);
2463e41f4b71Sopenharmony_ci    for (let i = 0; i < services.length; i++) {
2464e41f4b71Sopenharmony_ci        console.info('bluetooth serviceUuid is ' + services[i].serviceUuid);
2465e41f4b71Sopenharmony_ci    }
2466e41f4b71Sopenharmony_ci}
2467e41f4b71Sopenharmony_ci
2468e41f4b71Sopenharmony_citry {
2469e41f4b71Sopenharmony_ci    let device: ble.GattClientDevice = ble.createGattClientDevice('XX:XX:XX:XX:XX:XX');
2470e41f4b71Sopenharmony_ci    device.connect();
2471e41f4b71Sopenharmony_ci    device.getServices(getServices);
2472e41f4b71Sopenharmony_ci} catch (err) {
2473e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
2474e41f4b71Sopenharmony_ci}
2475e41f4b71Sopenharmony_ci```
2476e41f4b71Sopenharmony_ci
2477e41f4b71Sopenharmony_ci
2478e41f4b71Sopenharmony_ci### getServices
2479e41f4b71Sopenharmony_ci
2480e41f4b71Sopenharmony_cigetServices(): Promise&lt;Array&lt;GattService&gt;&gt;
2481e41f4b71Sopenharmony_ci
2482e41f4b71Sopenharmony_ciclient端获取蓝牙低功耗设备的所有服务,即服务发现。使用Promise异步回调。
2483e41f4b71Sopenharmony_ci
2484e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
2485e41f4b71Sopenharmony_ci
2486e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
2487e41f4b71Sopenharmony_ci
2488e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core2489e41f4b71Sopenharmony_ci
2490e41f4b71Sopenharmony_ci**返回值:**
2491e41f4b71Sopenharmony_ci
2492e41f4b71Sopenharmony_ci| 类型                                       | 说明                          |
2493e41f4b71Sopenharmony_ci| ---------------------------------------- | --------------------------- |
2494e41f4b71Sopenharmony_ci| Promise&lt;Array&lt;[GattService](#gattservice)&gt;&gt; | client进行服务发现,通过promise形式获取。 |
2495e41f4b71Sopenharmony_ci
2496e41f4b71Sopenharmony_ci**错误码**:
2497e41f4b71Sopenharmony_ci
2498e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
2499e41f4b71Sopenharmony_ci
2500e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
2501e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
2502e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
2503e41f4b71Sopenharmony_ci|401 | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verification failed.          |
2504e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
2505e41f4b71Sopenharmony_ci|2900001 | Service stopped.                         |
2506e41f4b71Sopenharmony_ci|2900099 | Operation failed.                        |
2507e41f4b71Sopenharmony_ci
2508e41f4b71Sopenharmony_ci**示例:**
2509e41f4b71Sopenharmony_ci
2510e41f4b71Sopenharmony_ci```js
2511e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
2512e41f4b71Sopenharmony_ci// Promise 模式
2513e41f4b71Sopenharmony_citry {
2514e41f4b71Sopenharmony_ci    let device: ble.GattClientDevice = ble.createGattClientDevice('XX:XX:XX:XX:XX:XX');
2515e41f4b71Sopenharmony_ci    device.connect();
2516e41f4b71Sopenharmony_ci    device.getServices().then((result: Array<ble.GattService>) => {
2517e41f4b71Sopenharmony_ci        console.info('getServices successfully:' + JSON.stringify(result));
2518e41f4b71Sopenharmony_ci    });
2519e41f4b71Sopenharmony_ci} catch (err) {
2520e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
2521e41f4b71Sopenharmony_ci}
2522e41f4b71Sopenharmony_ci```
2523e41f4b71Sopenharmony_ci
2524e41f4b71Sopenharmony_ci
2525e41f4b71Sopenharmony_ci### readCharacteristicValue
2526e41f4b71Sopenharmony_ci
2527e41f4b71Sopenharmony_cireadCharacteristicValue(characteristic: BLECharacteristic, callback: AsyncCallback&lt;BLECharacteristic&gt;): void
2528e41f4b71Sopenharmony_ci
2529e41f4b71Sopenharmony_ciclient端读取蓝牙低功耗设备特定服务的特征值。使用Callback异步回调。
2530e41f4b71Sopenharmony_ci
2531e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
2532e41f4b71Sopenharmony_ci
2533e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
2534e41f4b71Sopenharmony_ci
2535e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core2536e41f4b71Sopenharmony_ci
2537e41f4b71Sopenharmony_ci**参数:**
2538e41f4b71Sopenharmony_ci
2539e41f4b71Sopenharmony_ci| 参数名            | 类型                                       | 必填   | 说明                      |
2540e41f4b71Sopenharmony_ci| -------------- | ---------------------------------------- | ---- | ----------------------- |
2541e41f4b71Sopenharmony_ci| characteristic | [BLECharacteristic](#blecharacteristic)  | 是    | 待读取的特征值。                |
2542e41f4b71Sopenharmony_ci| callback       | AsyncCallback&lt;[BLECharacteristic](#blecharacteristic)&gt; | 是    | client读取特征值,通过注册回调函数获取。 |
2543e41f4b71Sopenharmony_ci
2544e41f4b71Sopenharmony_ci**错误码**:
2545e41f4b71Sopenharmony_ci
2546e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
2547e41f4b71Sopenharmony_ci
2548e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
2549e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
2550e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
2551e41f4b71Sopenharmony_ci|401 | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verification failed.                 |
2552e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
2553e41f4b71Sopenharmony_ci|2900001 | Service stopped.                         |
2554e41f4b71Sopenharmony_ci|2901000 | Read forbidden.                         |
2555e41f4b71Sopenharmony_ci|2900099 | Operation failed.                        |
2556e41f4b71Sopenharmony_ci
2557e41f4b71Sopenharmony_ci**示例:**
2558e41f4b71Sopenharmony_ci
2559e41f4b71Sopenharmony_ci```js
2560e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
2561e41f4b71Sopenharmony_cifunction readCcc(code: BusinessError, BLECharacteristic: ble.BLECharacteristic) {
2562e41f4b71Sopenharmony_ci  if (code.code != 0) {
2563e41f4b71Sopenharmony_ci      return;
2564e41f4b71Sopenharmony_ci  }
2565e41f4b71Sopenharmony_ci  console.info('bluetooth characteristic uuid: ' + BLECharacteristic.characteristicUuid);
2566e41f4b71Sopenharmony_ci  let value = new Uint8Array(BLECharacteristic.characteristicValue);
2567e41f4b71Sopenharmony_ci  console.info('bluetooth characteristic value: ' + value[0] +','+ value[1]+','+ value[2]+','+ value[3]);
2568e41f4b71Sopenharmony_ci}
2569e41f4b71Sopenharmony_ci
2570e41f4b71Sopenharmony_cilet descriptors: Array<ble.BLEDescriptor> = [];
2571e41f4b71Sopenharmony_cilet bufferDesc = new ArrayBuffer(8);
2572e41f4b71Sopenharmony_cilet descV = new Uint8Array(bufferDesc);
2573e41f4b71Sopenharmony_cidescV[0] = 11;
2574e41f4b71Sopenharmony_cilet descriptor: ble.BLEDescriptor = {serviceUuid: '00001810-0000-1000-8000-00805F9B34FB',
2575e41f4b71Sopenharmony_cicharacteristicUuid: '00001820-0000-1000-8000-00805F9B34FB',
2576e41f4b71Sopenharmony_cidescriptorUuid: '00002903-0000-1000-8000-00805F9B34FB', descriptorValue: bufferDesc};
2577e41f4b71Sopenharmony_cidescriptors[0] = descriptor;
2578e41f4b71Sopenharmony_ci
2579e41f4b71Sopenharmony_cilet bufferCCC = new ArrayBuffer(8);
2580e41f4b71Sopenharmony_cilet cccV = new Uint8Array(bufferCCC);
2581e41f4b71Sopenharmony_cicccV[0] = 1;
2582e41f4b71Sopenharmony_cilet characteristic: ble.BLECharacteristic = {serviceUuid: '00001810-0000-1000-8000-00805F9B34FB',
2583e41f4b71Sopenharmony_cicharacteristicUuid: '00001820-0000-1000-8000-00805F9B34FB',
2584e41f4b71Sopenharmony_cicharacteristicValue: bufferCCC, descriptors:descriptors};
2585e41f4b71Sopenharmony_ci
2586e41f4b71Sopenharmony_citry {
2587e41f4b71Sopenharmony_ci    let device: ble.GattClientDevice = ble.createGattClientDevice('XX:XX:XX:XX:XX:XX');
2588e41f4b71Sopenharmony_ci    device.readCharacteristicValue(characteristic, readCcc);
2589e41f4b71Sopenharmony_ci} catch (err) {
2590e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
2591e41f4b71Sopenharmony_ci}
2592e41f4b71Sopenharmony_ci```
2593e41f4b71Sopenharmony_ci
2594e41f4b71Sopenharmony_ci
2595e41f4b71Sopenharmony_ci### readCharacteristicValue
2596e41f4b71Sopenharmony_ci
2597e41f4b71Sopenharmony_cireadCharacteristicValue(characteristic: BLECharacteristic): Promise&lt;BLECharacteristic&gt;
2598e41f4b71Sopenharmony_ci
2599e41f4b71Sopenharmony_ciclient端读取蓝牙低功耗设备特定服务的特征值。使用Promise异步回调。
2600e41f4b71Sopenharmony_ci
2601e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
2602e41f4b71Sopenharmony_ci
2603e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
2604e41f4b71Sopenharmony_ci
2605e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core2606e41f4b71Sopenharmony_ci
2607e41f4b71Sopenharmony_ci**参数:**
2608e41f4b71Sopenharmony_ci
2609e41f4b71Sopenharmony_ci| 参数名            | 类型                                      | 必填   | 说明       |
2610e41f4b71Sopenharmony_ci| -------------- | --------------------------------------- | ---- | -------- |
2611e41f4b71Sopenharmony_ci| characteristic | [BLECharacteristic](#blecharacteristic) | 是    | 待读取的特征值。 |
2612e41f4b71Sopenharmony_ci
2613e41f4b71Sopenharmony_ci**返回值:**
2614e41f4b71Sopenharmony_ci
2615e41f4b71Sopenharmony_ci| 类型                                       | 说明                         |
2616e41f4b71Sopenharmony_ci| ---------------------------------------- | -------------------------- |
2617e41f4b71Sopenharmony_ci| Promise&lt;[BLECharacteristic](#blecharacteristic)&gt; | client读取特征值,通过promise形式获取。 |
2618e41f4b71Sopenharmony_ci
2619e41f4b71Sopenharmony_ci**错误码**:
2620e41f4b71Sopenharmony_ci
2621e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
2622e41f4b71Sopenharmony_ci
2623e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
2624e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
2625e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
2626e41f4b71Sopenharmony_ci|401 | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verification failed.                 |
2627e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
2628e41f4b71Sopenharmony_ci|2900001 | Service stopped.                         |
2629e41f4b71Sopenharmony_ci|2901000 | Read forbidden.                         |
2630e41f4b71Sopenharmony_ci|2900099 | Operation failed.                        |
2631e41f4b71Sopenharmony_ci
2632e41f4b71Sopenharmony_ci**示例:**
2633e41f4b71Sopenharmony_ci
2634e41f4b71Sopenharmony_ci```js
2635e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
2636e41f4b71Sopenharmony_cilet descriptors: Array<ble.BLEDescriptor> = [];
2637e41f4b71Sopenharmony_cilet bufferDesc = new ArrayBuffer(8);
2638e41f4b71Sopenharmony_cilet descV = new Uint8Array(bufferDesc);
2639e41f4b71Sopenharmony_cidescV[0] = 11;
2640e41f4b71Sopenharmony_cilet descriptor: ble.BLEDescriptor = {serviceUuid: '00001810-0000-1000-8000-00805F9B34FB',
2641e41f4b71Sopenharmony_cicharacteristicUuid: '00001820-0000-1000-8000-00805F9B34FB',
2642e41f4b71Sopenharmony_cidescriptorUuid: '00002903-0000-1000-8000-00805F9B34FB', descriptorValue: bufferDesc};
2643e41f4b71Sopenharmony_cidescriptors[0] = descriptor;
2644e41f4b71Sopenharmony_ci
2645e41f4b71Sopenharmony_cilet bufferCCC = new ArrayBuffer(8);
2646e41f4b71Sopenharmony_cilet cccV = new Uint8Array(bufferCCC);
2647e41f4b71Sopenharmony_cicccV[0] = 1;
2648e41f4b71Sopenharmony_cilet characteristic: ble.BLECharacteristic = {serviceUuid: '00001810-0000-1000-8000-00805F9B34FB',
2649e41f4b71Sopenharmony_cicharacteristicUuid: '00001820-0000-1000-8000-00805F9B34FB',
2650e41f4b71Sopenharmony_cicharacteristicValue: bufferCCC, descriptors:descriptors};
2651e41f4b71Sopenharmony_ci
2652e41f4b71Sopenharmony_citry {
2653e41f4b71Sopenharmony_ci    let device: ble.GattClientDevice = ble.createGattClientDevice('XX:XX:XX:XX:XX:XX');
2654e41f4b71Sopenharmony_ci    device.readCharacteristicValue(characteristic);
2655e41f4b71Sopenharmony_ci} catch (err) {
2656e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
2657e41f4b71Sopenharmony_ci}
2658e41f4b71Sopenharmony_ci```
2659e41f4b71Sopenharmony_ci
2660e41f4b71Sopenharmony_ci
2661e41f4b71Sopenharmony_ci### readDescriptorValue
2662e41f4b71Sopenharmony_ci
2663e41f4b71Sopenharmony_cireadDescriptorValue(descriptor: BLEDescriptor, callback: AsyncCallback&lt;BLEDescriptor&gt;): void
2664e41f4b71Sopenharmony_ci
2665e41f4b71Sopenharmony_ciclient端读取蓝牙低功耗设备特定的特征包含的描述符。使用Callback异步回调。
2666e41f4b71Sopenharmony_ci
2667e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
2668e41f4b71Sopenharmony_ci
2669e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
2670e41f4b71Sopenharmony_ci
2671e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core2672e41f4b71Sopenharmony_ci
2673e41f4b71Sopenharmony_ci**参数:**
2674e41f4b71Sopenharmony_ci
2675e41f4b71Sopenharmony_ci| 参数名        | 类型                                       | 必填   | 说明                      |
2676e41f4b71Sopenharmony_ci| ---------- | ---------------------------------------- | ---- | ----------------------- |
2677e41f4b71Sopenharmony_ci| descriptor | [BLEDescriptor](#bledescriptor)          | 是    | 待读取的描述符。                |
2678e41f4b71Sopenharmony_ci| callback   | AsyncCallback&lt;[BLEDescriptor](#bledescriptor)&gt; | 是    | client读取描述符,通过注册回调函数获取。 |
2679e41f4b71Sopenharmony_ci
2680e41f4b71Sopenharmony_ci**错误码**:
2681e41f4b71Sopenharmony_ci
2682e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
2683e41f4b71Sopenharmony_ci
2684e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
2685e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
2686e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
2687e41f4b71Sopenharmony_ci|401 | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verification failed.                 |
2688e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
2689e41f4b71Sopenharmony_ci|2900001 | Service stopped.                         |
2690e41f4b71Sopenharmony_ci|2901000 | Read forbidden.                         |
2691e41f4b71Sopenharmony_ci|2900099 | Operation failed.                        |
2692e41f4b71Sopenharmony_ci
2693e41f4b71Sopenharmony_ci**示例:**
2694e41f4b71Sopenharmony_ci
2695e41f4b71Sopenharmony_ci```js
2696e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
2697e41f4b71Sopenharmony_cifunction readDesc(code: BusinessError, BLEDescriptor: ble.BLEDescriptor) {
2698e41f4b71Sopenharmony_ci    if (code.code != 0) {
2699e41f4b71Sopenharmony_ci        return;
2700e41f4b71Sopenharmony_ci    }
2701e41f4b71Sopenharmony_ci    console.info('bluetooth descriptor uuid: ' + BLEDescriptor.descriptorUuid);
2702e41f4b71Sopenharmony_ci    let value = new Uint8Array(BLEDescriptor.descriptorValue);
2703e41f4b71Sopenharmony_ci    console.info('bluetooth descriptor value: ' + value[0] +','+ value[1]+','+ value[2]+','+ value[3]);
2704e41f4b71Sopenharmony_ci}
2705e41f4b71Sopenharmony_ci
2706e41f4b71Sopenharmony_cilet bufferDesc = new ArrayBuffer(8);
2707e41f4b71Sopenharmony_cilet descV = new Uint8Array(bufferDesc);
2708e41f4b71Sopenharmony_cidescV[0] = 11;
2709e41f4b71Sopenharmony_cilet descriptor: ble.BLEDescriptor = {
2710e41f4b71Sopenharmony_ci    serviceUuid: '00001810-0000-1000-8000-00805F9B34FB',
2711e41f4b71Sopenharmony_ci    characteristicUuid: '00001820-0000-1000-8000-00805F9B34FB',
2712e41f4b71Sopenharmony_ci    descriptorUuid: '00002903-0000-1000-8000-00805F9B34FB',
2713e41f4b71Sopenharmony_ci    descriptorValue: bufferDesc
2714e41f4b71Sopenharmony_ci};
2715e41f4b71Sopenharmony_citry {
2716e41f4b71Sopenharmony_ci    let device: ble.GattClientDevice = ble.createGattClientDevice('XX:XX:XX:XX:XX:XX');
2717e41f4b71Sopenharmony_ci    device.readDescriptorValue(descriptor, readDesc);
2718e41f4b71Sopenharmony_ci} catch (err) {
2719e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
2720e41f4b71Sopenharmony_ci}
2721e41f4b71Sopenharmony_ci```
2722e41f4b71Sopenharmony_ci
2723e41f4b71Sopenharmony_ci
2724e41f4b71Sopenharmony_ci### readDescriptorValue
2725e41f4b71Sopenharmony_ci
2726e41f4b71Sopenharmony_cireadDescriptorValue(descriptor: BLEDescriptor): Promise&lt;BLEDescriptor&gt;
2727e41f4b71Sopenharmony_ci
2728e41f4b71Sopenharmony_ciclient端读取蓝牙低功耗设备特定的特征包含的描述符。使用Promise异步回调。
2729e41f4b71Sopenharmony_ci
2730e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
2731e41f4b71Sopenharmony_ci
2732e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
2733e41f4b71Sopenharmony_ci
2734e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core2735e41f4b71Sopenharmony_ci
2736e41f4b71Sopenharmony_ci**参数:**
2737e41f4b71Sopenharmony_ci
2738e41f4b71Sopenharmony_ci| 参数名        | 类型                              | 必填   | 说明       |
2739e41f4b71Sopenharmony_ci| ---------- | ------------------------------- | ---- | -------- |
2740e41f4b71Sopenharmony_ci| descriptor | [BLEDescriptor](#bledescriptor) | 是    | 待读取的描述符。 |
2741e41f4b71Sopenharmony_ci
2742e41f4b71Sopenharmony_ci**返回值:**
2743e41f4b71Sopenharmony_ci
2744e41f4b71Sopenharmony_ci| 类型                                       | 说明                         |
2745e41f4b71Sopenharmony_ci| ---------------------------------------- | -------------------------- |
2746e41f4b71Sopenharmony_ci| Promise&lt;[BLEDescriptor](#bledescriptor)&gt; | client读取描述符,通过promise形式获取。 |
2747e41f4b71Sopenharmony_ci
2748e41f4b71Sopenharmony_ci**错误码**:
2749e41f4b71Sopenharmony_ci
2750e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
2751e41f4b71Sopenharmony_ci
2752e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
2753e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
2754e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
2755e41f4b71Sopenharmony_ci|401 | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verification failed.                 |
2756e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
2757e41f4b71Sopenharmony_ci|2900001 | Service stopped.               |
2758e41f4b71Sopenharmony_ci|2901000 | Read forbidden.                |
2759e41f4b71Sopenharmony_ci|2900099 | Operation failed.              |
2760e41f4b71Sopenharmony_ci
2761e41f4b71Sopenharmony_ci**示例:**
2762e41f4b71Sopenharmony_ci
2763e41f4b71Sopenharmony_ci```js
2764e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
2765e41f4b71Sopenharmony_cilet bufferDesc = new ArrayBuffer(8);
2766e41f4b71Sopenharmony_cilet descV = new Uint8Array(bufferDesc);
2767e41f4b71Sopenharmony_cidescV[0] = 11;
2768e41f4b71Sopenharmony_cilet descriptor: ble.BLEDescriptor = {
2769e41f4b71Sopenharmony_ci    serviceUuid: '00001810-0000-1000-8000-00805F9B34FB',
2770e41f4b71Sopenharmony_ci    characteristicUuid: '00001820-0000-1000-8000-00805F9B34FB',
2771e41f4b71Sopenharmony_ci    descriptorUuid: '00002903-0000-1000-8000-00805F9B34FB',
2772e41f4b71Sopenharmony_ci    descriptorValue: bufferDesc
2773e41f4b71Sopenharmony_ci};
2774e41f4b71Sopenharmony_citry {
2775e41f4b71Sopenharmony_ci    let device: ble.GattClientDevice = ble.createGattClientDevice('XX:XX:XX:XX:XX:XX');
2776e41f4b71Sopenharmony_ci    device.readDescriptorValue(descriptor);
2777e41f4b71Sopenharmony_ci} catch (err) {
2778e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
2779e41f4b71Sopenharmony_ci}
2780e41f4b71Sopenharmony_ci```
2781e41f4b71Sopenharmony_ci
2782e41f4b71Sopenharmony_ci
2783e41f4b71Sopenharmony_ci### writeCharacteristicValue
2784e41f4b71Sopenharmony_ci
2785e41f4b71Sopenharmony_ciwriteCharacteristicValue(characteristic: BLECharacteristic, writeType: GattWriteType, callback: AsyncCallback&lt;void&gt;): void
2786e41f4b71Sopenharmony_ci
2787e41f4b71Sopenharmony_ciclient端向低功耗蓝牙设备写入特定的特征值。使用Callback异步回调。
2788e41f4b71Sopenharmony_ci
2789e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
2790e41f4b71Sopenharmony_ci
2791e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
2792e41f4b71Sopenharmony_ci
2793e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core2794e41f4b71Sopenharmony_ci
2795e41f4b71Sopenharmony_ci**参数:**
2796e41f4b71Sopenharmony_ci
2797e41f4b71Sopenharmony_ci| 参数名            | 类型                                      | 必填   | 说明                  |
2798e41f4b71Sopenharmony_ci| -------------- | --------------------------------------- | ---- | ------------------- |
2799e41f4b71Sopenharmony_ci| characteristic | [BLECharacteristic](#blecharacteristic) | 是    | 蓝牙设备特征对应的二进制值及其它参数。 |
2800e41f4b71Sopenharmony_ci| writeType | [GattWriteType](#gattwritetype) | 是    | 蓝牙设备特征的写入类型。 |
2801e41f4b71Sopenharmony_ci| callback   | AsyncCallback&lt;void&gt; | 是    | 回调函数。当写入成功,err为undefined,否则为错误对象。 |
2802e41f4b71Sopenharmony_ci
2803e41f4b71Sopenharmony_ci**错误码**:
2804e41f4b71Sopenharmony_ci
2805e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
2806e41f4b71Sopenharmony_ci
2807e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
2808e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
2809e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
2810e41f4b71Sopenharmony_ci|401 | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verification failed.                 |
2811e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
2812e41f4b71Sopenharmony_ci|2900001 | Service stopped.                         |
2813e41f4b71Sopenharmony_ci|2901001 | Write forbidden.                        |
2814e41f4b71Sopenharmony_ci|2900099 | Operation failed.                        |
2815e41f4b71Sopenharmony_ci
2816e41f4b71Sopenharmony_ci**示例:**
2817e41f4b71Sopenharmony_ci
2818e41f4b71Sopenharmony_ci```js
2819e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
2820e41f4b71Sopenharmony_cilet descriptors: Array<ble.BLEDescriptor> = [];
2821e41f4b71Sopenharmony_cilet bufferDesc = new ArrayBuffer(8);
2822e41f4b71Sopenharmony_cilet descV = new Uint8Array(bufferDesc);
2823e41f4b71Sopenharmony_cidescV[0] = 11;
2824e41f4b71Sopenharmony_cilet descriptor: ble.BLEDescriptor = {serviceUuid: '00001810-0000-1000-8000-00805F9B34FB',
2825e41f4b71Sopenharmony_ci  characteristicUuid: '00001820-0000-1000-8000-00805F9B34FB',
2826e41f4b71Sopenharmony_ci  descriptorUuid: '00002903-0000-1000-8000-00805F9B34FB', descriptorValue: bufferDesc};
2827e41f4b71Sopenharmony_cidescriptors[0] = descriptor;
2828e41f4b71Sopenharmony_ci
2829e41f4b71Sopenharmony_cilet bufferCCC = new ArrayBuffer(8);
2830e41f4b71Sopenharmony_cilet cccV = new Uint8Array(bufferCCC);
2831e41f4b71Sopenharmony_cicccV[0] = 1;
2832e41f4b71Sopenharmony_cilet characteristic: ble.BLECharacteristic = {serviceUuid: '00001810-0000-1000-8000-00805F9B34FB',
2833e41f4b71Sopenharmony_ci  characteristicUuid: '00001820-0000-1000-8000-00805F9B34FB',
2834e41f4b71Sopenharmony_ci  characteristicValue: bufferCCC, descriptors:descriptors};
2835e41f4b71Sopenharmony_cifunction writeCharacteristicValueCallBack(code: BusinessError) {
2836e41f4b71Sopenharmony_ci    if (code != null) {
2837e41f4b71Sopenharmony_ci        return;
2838e41f4b71Sopenharmony_ci    }
2839e41f4b71Sopenharmony_ci    console.info('bluetooth writeCharacteristicValue success');
2840e41f4b71Sopenharmony_ci}
2841e41f4b71Sopenharmony_citry {
2842e41f4b71Sopenharmony_ci    let device: ble.GattClientDevice = ble.createGattClientDevice('XX:XX:XX:XX:XX:XX');
2843e41f4b71Sopenharmony_ci    device.writeCharacteristicValue(characteristic, ble.GattWriteType.WRITE, writeCharacteristicValueCallBack);
2844e41f4b71Sopenharmony_ci} catch (err) {
2845e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
2846e41f4b71Sopenharmony_ci}
2847e41f4b71Sopenharmony_ci```
2848e41f4b71Sopenharmony_ci
2849e41f4b71Sopenharmony_ci
2850e41f4b71Sopenharmony_ci### writeCharacteristicValue
2851e41f4b71Sopenharmony_ci
2852e41f4b71Sopenharmony_ciwriteCharacteristicValue(characteristic: BLECharacteristic, writeType: GattWriteType): Promise&lt;void&gt;
2853e41f4b71Sopenharmony_ci
2854e41f4b71Sopenharmony_ciclient端向低功耗蓝牙设备写入特定的特征值。使用Promise异步回调。
2855e41f4b71Sopenharmony_ci
2856e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
2857e41f4b71Sopenharmony_ci
2858e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
2859e41f4b71Sopenharmony_ci
2860e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core2861e41f4b71Sopenharmony_ci
2862e41f4b71Sopenharmony_ci**参数:**
2863e41f4b71Sopenharmony_ci
2864e41f4b71Sopenharmony_ci| 参数名            | 类型                                      | 必填   | 说明                  |
2865e41f4b71Sopenharmony_ci| -------------- | --------------------------------------- | ---- | ------------------- |
2866e41f4b71Sopenharmony_ci| characteristic | [BLECharacteristic](#blecharacteristic) | 是    | 蓝牙设备特征对应的二进制值及其它参数。 |
2867e41f4b71Sopenharmony_ci| writeType | [GattWriteType](#gattwritetype) | 是    | 蓝牙设备特征的写入类型。 |
2868e41f4b71Sopenharmony_ci
2869e41f4b71Sopenharmony_ci**返回值:**
2870e41f4b71Sopenharmony_ci
2871e41f4b71Sopenharmony_ci| 类型                                       | 说明                         |
2872e41f4b71Sopenharmony_ci| ---------------------------------------- | -------------------------- |
2873e41f4b71Sopenharmony_ci| Promise&lt;void&gt; | client读取描述符,通过promise形式获取。 |
2874e41f4b71Sopenharmony_ci
2875e41f4b71Sopenharmony_ci**错误码**:
2876e41f4b71Sopenharmony_ci
2877e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
2878e41f4b71Sopenharmony_ci
2879e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
2880e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
2881e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
2882e41f4b71Sopenharmony_ci|401 | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verification failed.                 |
2883e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
2884e41f4b71Sopenharmony_ci|2900001 | Service stopped.                         |
2885e41f4b71Sopenharmony_ci|2901001 | Write forbidden.                        |
2886e41f4b71Sopenharmony_ci|2900099 | Operation failed.                        |
2887e41f4b71Sopenharmony_ci
2888e41f4b71Sopenharmony_ci**示例:**
2889e41f4b71Sopenharmony_ci
2890e41f4b71Sopenharmony_ci```js
2891e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
2892e41f4b71Sopenharmony_cilet descriptors: Array<ble.BLEDescriptor>  = [];
2893e41f4b71Sopenharmony_cilet bufferDesc = new ArrayBuffer(8);
2894e41f4b71Sopenharmony_cilet descV = new Uint8Array(bufferDesc);
2895e41f4b71Sopenharmony_cidescV[0] = 11;
2896e41f4b71Sopenharmony_cilet descriptor: ble.BLEDescriptor = {serviceUuid: '00001810-0000-1000-8000-00805F9B34FB',
2897e41f4b71Sopenharmony_ci  characteristicUuid: '00001820-0000-1000-8000-00805F9B34FB',
2898e41f4b71Sopenharmony_ci  descriptorUuid: '00002903-0000-1000-8000-00805F9B34FB', descriptorValue: bufferDesc};
2899e41f4b71Sopenharmony_cidescriptors[0] = descriptor;
2900e41f4b71Sopenharmony_ci
2901e41f4b71Sopenharmony_cilet bufferCCC = new ArrayBuffer(8);
2902e41f4b71Sopenharmony_cilet cccV = new Uint8Array(bufferCCC);
2903e41f4b71Sopenharmony_cicccV[0] = 1;
2904e41f4b71Sopenharmony_cilet characteristic: ble.BLECharacteristic = {serviceUuid: '00001810-0000-1000-8000-00805F9B34FB',
2905e41f4b71Sopenharmony_ci  characteristicUuid: '00001820-0000-1000-8000-00805F9B34FB',
2906e41f4b71Sopenharmony_ci  characteristicValue: bufferCCC, descriptors:descriptors};
2907e41f4b71Sopenharmony_citry {
2908e41f4b71Sopenharmony_ci    let device: ble.GattClientDevice = ble.createGattClientDevice('XX:XX:XX:XX:XX:XX');
2909e41f4b71Sopenharmony_ci    device.writeCharacteristicValue(characteristic, ble.GattWriteType.WRITE);
2910e41f4b71Sopenharmony_ci} catch (err) {
2911e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
2912e41f4b71Sopenharmony_ci}
2913e41f4b71Sopenharmony_ci```
2914e41f4b71Sopenharmony_ci
2915e41f4b71Sopenharmony_ci
2916e41f4b71Sopenharmony_ci### writeDescriptorValue
2917e41f4b71Sopenharmony_ci
2918e41f4b71Sopenharmony_ciwriteDescriptorValue(descriptor: BLEDescriptor, callback: AsyncCallback&lt;void&gt;): void
2919e41f4b71Sopenharmony_ci
2920e41f4b71Sopenharmony_ciclient端向低功耗蓝牙设备特定的描述符写入二进制数据。使用Callback异步回调。
2921e41f4b71Sopenharmony_ci
2922e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
2923e41f4b71Sopenharmony_ci
2924e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
2925e41f4b71Sopenharmony_ci
2926e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core2927e41f4b71Sopenharmony_ci
2928e41f4b71Sopenharmony_ci**参数:**
2929e41f4b71Sopenharmony_ci
2930e41f4b71Sopenharmony_ci| 参数名        | 类型                              | 必填   | 说明                 |
2931e41f4b71Sopenharmony_ci| ---------- | ------------------------------- | ---- | ------------------ |
2932e41f4b71Sopenharmony_ci| descriptor | [BLEDescriptor](#bledescriptor) | 是    | 蓝牙设备描述符的二进制值及其它参数。 |
2933e41f4b71Sopenharmony_ci| callback   | AsyncCallback&lt;void&gt; | 是    | 回调函数。当写入成功,err为undefined,否则为错误对象。 |
2934e41f4b71Sopenharmony_ci
2935e41f4b71Sopenharmony_ci**错误码**:
2936e41f4b71Sopenharmony_ci
2937e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
2938e41f4b71Sopenharmony_ci
2939e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
2940e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
2941e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
2942e41f4b71Sopenharmony_ci|401 | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verification failed.                 |
2943e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
2944e41f4b71Sopenharmony_ci|2900001 | Service stopped.                         |
2945e41f4b71Sopenharmony_ci|2901001 | Write forbidden.                        |
2946e41f4b71Sopenharmony_ci|2900099 | Operation failed.                        |
2947e41f4b71Sopenharmony_ci
2948e41f4b71Sopenharmony_ci**示例:**
2949e41f4b71Sopenharmony_ci
2950e41f4b71Sopenharmony_ci```js
2951e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
2952e41f4b71Sopenharmony_cilet bufferDesc = new ArrayBuffer(8);
2953e41f4b71Sopenharmony_cilet descV = new Uint8Array(bufferDesc);
2954e41f4b71Sopenharmony_cidescV[0] = 22;
2955e41f4b71Sopenharmony_cilet descriptor: ble.BLEDescriptor = {
2956e41f4b71Sopenharmony_ci    serviceUuid: '00001810-0000-1000-8000-00805F9B34FB',
2957e41f4b71Sopenharmony_ci    characteristicUuid: '00001820-0000-1000-8000-00805F9B34FB',
2958e41f4b71Sopenharmony_ci    descriptorUuid: '00002903-0000-1000-8000-00805F9B34FB',
2959e41f4b71Sopenharmony_ci    descriptorValue: bufferDesc
2960e41f4b71Sopenharmony_ci};
2961e41f4b71Sopenharmony_citry {
2962e41f4b71Sopenharmony_ci    let device: ble.GattClientDevice = ble.createGattClientDevice('XX:XX:XX:XX:XX:XX');
2963e41f4b71Sopenharmony_ci    device.writeDescriptorValue(descriptor, (err: BusinessError) => {
2964e41f4b71Sopenharmony_ci        if (err) {
2965e41f4b71Sopenharmony_ci            console.info('notifyCharacteristicChanged callback failed');
2966e41f4b71Sopenharmony_ci        } else {
2967e41f4b71Sopenharmony_ci            console.info('notifyCharacteristicChanged callback successful');
2968e41f4b71Sopenharmony_ci        }
2969e41f4b71Sopenharmony_ci    });
2970e41f4b71Sopenharmony_ci} catch (err) {
2971e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
2972e41f4b71Sopenharmony_ci}
2973e41f4b71Sopenharmony_ci```
2974e41f4b71Sopenharmony_ci
2975e41f4b71Sopenharmony_ci
2976e41f4b71Sopenharmony_ci### writeDescriptorValue
2977e41f4b71Sopenharmony_ci
2978e41f4b71Sopenharmony_ciwriteDescriptorValue(descriptor: BLEDescriptor): Promise&lt;void&gt;
2979e41f4b71Sopenharmony_ci
2980e41f4b71Sopenharmony_ciclient端向低功耗蓝牙设备特定的描述符写入二进制数据。使用Promise异步回调。
2981e41f4b71Sopenharmony_ci
2982e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
2983e41f4b71Sopenharmony_ci
2984e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
2985e41f4b71Sopenharmony_ci
2986e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core2987e41f4b71Sopenharmony_ci
2988e41f4b71Sopenharmony_ci**参数:**
2989e41f4b71Sopenharmony_ci
2990e41f4b71Sopenharmony_ci| 参数名        | 类型                              | 必填   | 说明                 |
2991e41f4b71Sopenharmony_ci| ---------- | ------------------------------- | ---- | ------------------ |
2992e41f4b71Sopenharmony_ci| descriptor | [BLEDescriptor](#bledescriptor) | 是    | 蓝牙设备描述符的二进制值及其它参数。 |
2993e41f4b71Sopenharmony_ci
2994e41f4b71Sopenharmony_ci**返回值:**
2995e41f4b71Sopenharmony_ci
2996e41f4b71Sopenharmony_ci| 类型                                       | 说明                         |
2997e41f4b71Sopenharmony_ci| ---------------------------------------- | -------------------------- |
2998e41f4b71Sopenharmony_ci| Promise&lt;void&gt; | client读取描述符,通过promise形式获取。 |
2999e41f4b71Sopenharmony_ci
3000e41f4b71Sopenharmony_ci**错误码**:
3001e41f4b71Sopenharmony_ci
3002e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
3003e41f4b71Sopenharmony_ci
3004e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
3005e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
3006e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
3007e41f4b71Sopenharmony_ci|401 | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verification failed.                 |
3008e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
3009e41f4b71Sopenharmony_ci|2900001 | Service stopped.                         |
3010e41f4b71Sopenharmony_ci|2901001 | Write forbidden.                        |
3011e41f4b71Sopenharmony_ci|2900099 | Operation failed.                        |
3012e41f4b71Sopenharmony_ci
3013e41f4b71Sopenharmony_ci**示例:**
3014e41f4b71Sopenharmony_ci
3015e41f4b71Sopenharmony_ci```js
3016e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
3017e41f4b71Sopenharmony_cilet bufferDesc = new ArrayBuffer(8);
3018e41f4b71Sopenharmony_cilet descV = new Uint8Array(bufferDesc);
3019e41f4b71Sopenharmony_cidescV[0] = 22;
3020e41f4b71Sopenharmony_cilet descriptor: ble.BLEDescriptor = {
3021e41f4b71Sopenharmony_ci    serviceUuid: '00001810-0000-1000-8000-00805F9B34FB',
3022e41f4b71Sopenharmony_ci    characteristicUuid: '00001820-0000-1000-8000-00805F9B34FB',
3023e41f4b71Sopenharmony_ci    descriptorUuid: '00002903-0000-1000-8000-00805F9B34FB',
3024e41f4b71Sopenharmony_ci    descriptorValue: bufferDesc
3025e41f4b71Sopenharmony_ci};
3026e41f4b71Sopenharmony_citry {
3027e41f4b71Sopenharmony_ci    let device: ble.GattClientDevice = ble.createGattClientDevice('XX:XX:XX:XX:XX:XX');
3028e41f4b71Sopenharmony_ci    device.writeDescriptorValue(descriptor).then(() => {
3029e41f4b71Sopenharmony_ci        console.info('writeDescriptorValue promise success');
3030e41f4b71Sopenharmony_ci    });
3031e41f4b71Sopenharmony_ci} catch (err) {
3032e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
3033e41f4b71Sopenharmony_ci}
3034e41f4b71Sopenharmony_ci```
3035e41f4b71Sopenharmony_ci
3036e41f4b71Sopenharmony_ci
3037e41f4b71Sopenharmony_ci### getRssiValue
3038e41f4b71Sopenharmony_ci
3039e41f4b71Sopenharmony_cigetRssiValue(callback: AsyncCallback&lt;number&gt;): void
3040e41f4b71Sopenharmony_ci
3041e41f4b71Sopenharmony_ciclient获取远端蓝牙低功耗设备的信号强度 (Received Signal Strength Indication, RSSI),调用[connect](#connect)接口连接成功后才能使用。使用Callback异步回调。
3042e41f4b71Sopenharmony_ci
3043e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
3044e41f4b71Sopenharmony_ci
3045e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
3046e41f4b71Sopenharmony_ci
3047e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core3048e41f4b71Sopenharmony_ci
3049e41f4b71Sopenharmony_ci**参数:**
3050e41f4b71Sopenharmony_ci
3051e41f4b71Sopenharmony_ci| 参数名      | 类型                          | 必填   | 说明                             |
3052e41f4b71Sopenharmony_ci| -------- | --------------------------- | ---- | ------------------------------ |
3053e41f4b71Sopenharmony_ci| callback | AsyncCallback&lt;number&gt; | 是    | 返回信号强度,单位&nbsp;dBm,通过注册回调函数获取。 |
3054e41f4b71Sopenharmony_ci
3055e41f4b71Sopenharmony_ci**错误码**:
3056e41f4b71Sopenharmony_ci
3057e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
3058e41f4b71Sopenharmony_ci
3059e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
3060e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
3061e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
3062e41f4b71Sopenharmony_ci|401 | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verification failed.         |
3063e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
3064e41f4b71Sopenharmony_ci|2900099 | Operation failed.                        |
3065e41f4b71Sopenharmony_ci
3066e41f4b71Sopenharmony_ci**示例:**
3067e41f4b71Sopenharmony_ci
3068e41f4b71Sopenharmony_ci```js
3069e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
3070e41f4b71Sopenharmony_ci// callback
3071e41f4b71Sopenharmony_citry {
3072e41f4b71Sopenharmony_ci    let gattClient: ble.GattClientDevice = ble.createGattClientDevice("XX:XX:XX:XX:XX:XX");
3073e41f4b71Sopenharmony_ci    gattClient.connect();
3074e41f4b71Sopenharmony_ci    let rssi = gattClient.getRssiValue((err: BusinessError, data: number)=> {
3075e41f4b71Sopenharmony_ci        console.info('rssi err ' + JSON.stringify(err));
3076e41f4b71Sopenharmony_ci        console.info('rssi value' + JSON.stringify(data));
3077e41f4b71Sopenharmony_ci    })
3078e41f4b71Sopenharmony_ci} catch (err) {
3079e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
3080e41f4b71Sopenharmony_ci}
3081e41f4b71Sopenharmony_ci```
3082e41f4b71Sopenharmony_ci
3083e41f4b71Sopenharmony_ci
3084e41f4b71Sopenharmony_ci### getRssiValue
3085e41f4b71Sopenharmony_ci
3086e41f4b71Sopenharmony_cigetRssiValue(): Promise&lt;number&gt;
3087e41f4b71Sopenharmony_ci
3088e41f4b71Sopenharmony_ciclient获取远端蓝牙低功耗设备的信号强度 (Received Signal Strength Indication, RSSI),调用[connect](#connect)接口连接成功后才能使用。使用Promise异步回调。
3089e41f4b71Sopenharmony_ci
3090e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
3091e41f4b71Sopenharmony_ci
3092e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
3093e41f4b71Sopenharmony_ci
3094e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core3095e41f4b71Sopenharmony_ci
3096e41f4b71Sopenharmony_ci**返回值:**
3097e41f4b71Sopenharmony_ci
3098e41f4b71Sopenharmony_ci| 类型                    | 说明                                |
3099e41f4b71Sopenharmony_ci| --------------------- | --------------------------------- |
3100e41f4b71Sopenharmony_ci| Promise&lt;number&gt; | 返回信号强度,单位&nbsp;dBm,通过promise形式获取。 |
3101e41f4b71Sopenharmony_ci
3102e41f4b71Sopenharmony_ci**错误码**:
3103e41f4b71Sopenharmony_ci
3104e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
3105e41f4b71Sopenharmony_ci
3106e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
3107e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
3108e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
3109e41f4b71Sopenharmony_ci|401 | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types.               |
3110e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
3111e41f4b71Sopenharmony_ci|2900099 | Operation failed.                        |
3112e41f4b71Sopenharmony_ci
3113e41f4b71Sopenharmony_ci**示例:**
3114e41f4b71Sopenharmony_ci
3115e41f4b71Sopenharmony_ci```js
3116e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
3117e41f4b71Sopenharmony_ci// promise
3118e41f4b71Sopenharmony_citry {
3119e41f4b71Sopenharmony_ci    let gattClient: ble.GattClientDevice = ble.createGattClientDevice("XX:XX:XX:XX:XX:XX");
3120e41f4b71Sopenharmony_ci    gattClient.getRssiValue().then((data: number) => {
3121e41f4b71Sopenharmony_ci        console.info('rssi' + JSON.stringify(data));
3122e41f4b71Sopenharmony_ci    })
3123e41f4b71Sopenharmony_ci} catch (err) {
3124e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
3125e41f4b71Sopenharmony_ci}
3126e41f4b71Sopenharmony_ci```
3127e41f4b71Sopenharmony_ci
3128e41f4b71Sopenharmony_ci
3129e41f4b71Sopenharmony_ci### setBLEMtuSize
3130e41f4b71Sopenharmony_ci
3131e41f4b71Sopenharmony_cisetBLEMtuSize(mtu: number): void
3132e41f4b71Sopenharmony_ci
3133e41f4b71Sopenharmony_ciclient协商远端蓝牙低功耗设备的最大传输单元(Maximum Transmission Unit, MTU),调用[connect](#connect)接口连接成功后才能使用。
3134e41f4b71Sopenharmony_ci
3135e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
3136e41f4b71Sopenharmony_ci
3137e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
3138e41f4b71Sopenharmony_ci
3139e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core3140e41f4b71Sopenharmony_ci
3141e41f4b71Sopenharmony_ci**参数:**
3142e41f4b71Sopenharmony_ci
3143e41f4b71Sopenharmony_ci| 参数名  | 类型     | 必填   | 说明             |
3144e41f4b71Sopenharmony_ci| ---- | ------ | ---- | -------------- |
3145e41f4b71Sopenharmony_ci| mtu  | number | 是    | 设置范围为22~512字节。 |
3146e41f4b71Sopenharmony_ci
3147e41f4b71Sopenharmony_ci**错误码**:
3148e41f4b71Sopenharmony_ci
3149e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
3150e41f4b71Sopenharmony_ci
3151e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
3152e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
3153e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
3154e41f4b71Sopenharmony_ci|401 | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verification failed.                 |
3155e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
3156e41f4b71Sopenharmony_ci|2900001 | Service stopped.                         |
3157e41f4b71Sopenharmony_ci|2900099 | Operation failed.                        |
3158e41f4b71Sopenharmony_ci
3159e41f4b71Sopenharmony_ci**示例:**
3160e41f4b71Sopenharmony_ci
3161e41f4b71Sopenharmony_ci```js
3162e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
3163e41f4b71Sopenharmony_citry {
3164e41f4b71Sopenharmony_ci    let device: ble.GattClientDevice = ble.createGattClientDevice('XX:XX:XX:XX:XX:XX');
3165e41f4b71Sopenharmony_ci    device.setBLEMtuSize(128);
3166e41f4b71Sopenharmony_ci} catch (err) {
3167e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
3168e41f4b71Sopenharmony_ci}
3169e41f4b71Sopenharmony_ci```
3170e41f4b71Sopenharmony_ci
3171e41f4b71Sopenharmony_ci
3172e41f4b71Sopenharmony_ci### setCharacteristicChangeNotification
3173e41f4b71Sopenharmony_ci
3174e41f4b71Sopenharmony_cisetCharacteristicChangeNotification(characteristic: BLECharacteristic, enable: boolean, callback: AsyncCallback&lt;void&gt;): void
3175e41f4b71Sopenharmony_ci
3176e41f4b71Sopenharmony_ci向服务端发送设置通知此特征值请求。使用Callback异步回调。
3177e41f4b71Sopenharmony_ci
3178e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
3179e41f4b71Sopenharmony_ci
3180e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
3181e41f4b71Sopenharmony_ci
3182e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core3183e41f4b71Sopenharmony_ci
3184e41f4b71Sopenharmony_ci**参数:**
3185e41f4b71Sopenharmony_ci
3186e41f4b71Sopenharmony_ci| 参数名            | 类型                                      | 必填   | 说明                            |
3187e41f4b71Sopenharmony_ci| -------------- | --------------------------------------- | ---- | ----------------------------- |
3188e41f4b71Sopenharmony_ci| characteristic | [BLECharacteristic](#blecharacteristic) | 是    | 蓝牙低功耗特征。                      |
3189e41f4b71Sopenharmony_ci| enable         | boolean                                 | 是    | 启用接收notify设置为true,否则设置为false。 |
3190e41f4b71Sopenharmony_ci| callback   | AsyncCallback&lt;void&gt; | 是    | 回调函数。当发送成功,err为undefined,否则为错误对象。 |
3191e41f4b71Sopenharmony_ci
3192e41f4b71Sopenharmony_ci**错误码**:
3193e41f4b71Sopenharmony_ci
3194e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
3195e41f4b71Sopenharmony_ci
3196e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
3197e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
3198e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
3199e41f4b71Sopenharmony_ci|401 | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verification failed.                 |
3200e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
3201e41f4b71Sopenharmony_ci|2900001 | Service stopped.                         |
3202e41f4b71Sopenharmony_ci|2900099 | Operation failed.                        |
3203e41f4b71Sopenharmony_ci
3204e41f4b71Sopenharmony_ci**示例:**
3205e41f4b71Sopenharmony_ci
3206e41f4b71Sopenharmony_ci```js
3207e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
3208e41f4b71Sopenharmony_ci// 创建descriptors
3209e41f4b71Sopenharmony_cilet descriptors: Array<ble.BLEDescriptor> = [];
3210e41f4b71Sopenharmony_cilet arrayBuffer = new ArrayBuffer(8);
3211e41f4b71Sopenharmony_cilet descV = new Uint8Array(arrayBuffer);
3212e41f4b71Sopenharmony_cidescV[0] = 11;
3213e41f4b71Sopenharmony_cilet descriptor: ble.BLEDescriptor = {serviceUuid: '00001810-0000-1000-8000-00805F9B34FB',
3214e41f4b71Sopenharmony_ci  characteristicUuid: '00001820-0000-1000-8000-00805F9B34FB',
3215e41f4b71Sopenharmony_ci  descriptorUuid: '00002902-0000-1000-8000-00805F9B34FB', descriptorValue: arrayBuffer};
3216e41f4b71Sopenharmony_cidescriptors[0] = descriptor;
3217e41f4b71Sopenharmony_cilet arrayBufferC = new ArrayBuffer(8);
3218e41f4b71Sopenharmony_cilet characteristic: ble.BLECharacteristic = {serviceUuid: '00001810-0000-1000-8000-00805F9B34FB',
3219e41f4b71Sopenharmony_ci  characteristicUuid: '00001820-0000-1000-8000-00805F9B34FB', characteristicValue: arrayBufferC, descriptors:descriptors};
3220e41f4b71Sopenharmony_citry {
3221e41f4b71Sopenharmony_ci    let device: ble.GattClientDevice = ble.createGattClientDevice('XX:XX:XX:XX:XX:XX');
3222e41f4b71Sopenharmony_ci    device.setCharacteristicChangeNotification(characteristic, false, (err: BusinessError) => {
3223e41f4b71Sopenharmony_ci        if (err) {
3224e41f4b71Sopenharmony_ci            console.info('notifyCharacteristicChanged callback failed');
3225e41f4b71Sopenharmony_ci        } else {
3226e41f4b71Sopenharmony_ci            console.info('notifyCharacteristicChanged callback successful');
3227e41f4b71Sopenharmony_ci        }
3228e41f4b71Sopenharmony_ci    });
3229e41f4b71Sopenharmony_ci} catch (err) {
3230e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
3231e41f4b71Sopenharmony_ci}
3232e41f4b71Sopenharmony_ci
3233e41f4b71Sopenharmony_ci```
3234e41f4b71Sopenharmony_ci
3235e41f4b71Sopenharmony_ci
3236e41f4b71Sopenharmony_ci### setCharacteristicChangeNotification
3237e41f4b71Sopenharmony_ci
3238e41f4b71Sopenharmony_cisetCharacteristicChangeNotification(characteristic: BLECharacteristic, enable: boolean): Promise&lt;void&gt;
3239e41f4b71Sopenharmony_ci
3240e41f4b71Sopenharmony_ci向服务端发送设置通知此特征值请求。使用Promise异步回调。
3241e41f4b71Sopenharmony_ci
3242e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
3243e41f4b71Sopenharmony_ci
3244e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
3245e41f4b71Sopenharmony_ci
3246e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core3247e41f4b71Sopenharmony_ci
3248e41f4b71Sopenharmony_ci**参数:**
3249e41f4b71Sopenharmony_ci
3250e41f4b71Sopenharmony_ci| 参数名            | 类型                                      | 必填   | 说明                            |
3251e41f4b71Sopenharmony_ci| -------------- | --------------------------------------- | ---- | ----------------------------- |
3252e41f4b71Sopenharmony_ci| characteristic | [BLECharacteristic](#blecharacteristic) | 是    | 蓝牙低功耗特征。                      |
3253e41f4b71Sopenharmony_ci| enable         | boolean                                 | 是    | 启用接收notify设置为true,否则设置为false。 |
3254e41f4b71Sopenharmony_ci
3255e41f4b71Sopenharmony_ci**返回值:**
3256e41f4b71Sopenharmony_ci
3257e41f4b71Sopenharmony_ci| 类型                                       | 说明                         |
3258e41f4b71Sopenharmony_ci| ---------------------------------------- | -------------------------- |
3259e41f4b71Sopenharmony_ci| Promise&lt;void&gt; | 返回Promise对象。 |
3260e41f4b71Sopenharmony_ci
3261e41f4b71Sopenharmony_ci**错误码**:
3262e41f4b71Sopenharmony_ci
3263e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
3264e41f4b71Sopenharmony_ci
3265e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
3266e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
3267e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
3268e41f4b71Sopenharmony_ci|401 | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verification failed.                 |
3269e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
3270e41f4b71Sopenharmony_ci|2900001 | Service stopped.                         |
3271e41f4b71Sopenharmony_ci|2900099 | Operation failed.                        |
3272e41f4b71Sopenharmony_ci
3273e41f4b71Sopenharmony_ci**示例:**
3274e41f4b71Sopenharmony_ci
3275e41f4b71Sopenharmony_ci```js
3276e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
3277e41f4b71Sopenharmony_ci// 创建descriptors
3278e41f4b71Sopenharmony_cilet descriptors: Array<ble.BLEDescriptor> = [];
3279e41f4b71Sopenharmony_cilet arrayBuffer = new ArrayBuffer(8);
3280e41f4b71Sopenharmony_cilet descV = new Uint8Array(arrayBuffer);
3281e41f4b71Sopenharmony_cidescV[0] = 11;
3282e41f4b71Sopenharmony_cilet descriptor: ble.BLEDescriptor = {serviceUuid: '00001810-0000-1000-8000-00805F9B34FB',
3283e41f4b71Sopenharmony_ci  characteristicUuid: '00001820-0000-1000-8000-00805F9B34FB',
3284e41f4b71Sopenharmony_ci  descriptorUuid: '00002902-0000-1000-8000-00805F9B34FB', descriptorValue: arrayBuffer};
3285e41f4b71Sopenharmony_cidescriptors[0] = descriptor;
3286e41f4b71Sopenharmony_cilet arrayBufferC = new ArrayBuffer(8);
3287e41f4b71Sopenharmony_cilet characteristic: ble.BLECharacteristic = {serviceUuid: '00001810-0000-1000-8000-00805F9B34FB',
3288e41f4b71Sopenharmony_ci  characteristicUuid: '00001820-0000-1000-8000-00805F9B34FB', characteristicValue: arrayBufferC, descriptors:descriptors};
3289e41f4b71Sopenharmony_citry {
3290e41f4b71Sopenharmony_ci  let device: ble.GattClientDevice = ble.createGattClientDevice('XX:XX:XX:XX:XX:XX');
3291e41f4b71Sopenharmony_ci  device.setCharacteristicChangeNotification(characteristic, false);
3292e41f4b71Sopenharmony_ci} catch (err) {
3293e41f4b71Sopenharmony_ci  console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
3294e41f4b71Sopenharmony_ci}
3295e41f4b71Sopenharmony_ci
3296e41f4b71Sopenharmony_ci```
3297e41f4b71Sopenharmony_ci
3298e41f4b71Sopenharmony_ci
3299e41f4b71Sopenharmony_ci### setCharacteristicChangeIndication
3300e41f4b71Sopenharmony_ci
3301e41f4b71Sopenharmony_cisetCharacteristicChangeIndication(characteristic: BLECharacteristic, enable: boolean, callback: AsyncCallback&lt;void&gt;): void
3302e41f4b71Sopenharmony_ci
3303e41f4b71Sopenharmony_ci向服务端发送设置通知此特征值请求,需要对端设备的回复。使用Callback异步回调。
3304e41f4b71Sopenharmony_ci
3305e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
3306e41f4b71Sopenharmony_ci
3307e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
3308e41f4b71Sopenharmony_ci
3309e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core3310e41f4b71Sopenharmony_ci
3311e41f4b71Sopenharmony_ci**参数:**
3312e41f4b71Sopenharmony_ci
3313e41f4b71Sopenharmony_ci| 参数名            | 类型                                      | 必填   | 说明                            |
3314e41f4b71Sopenharmony_ci| -------------- | --------------------------------------- | ---- | ----------------------------- |
3315e41f4b71Sopenharmony_ci| characteristic | [BLECharacteristic](#blecharacteristic) | 是    | 蓝牙低功耗特征。                      |
3316e41f4b71Sopenharmony_ci| enable         | boolean                                 | 是    | 启用接收notify设置为true,否则设置为false。 |
3317e41f4b71Sopenharmony_ci| callback   | AsyncCallback&lt;void&gt; | 是    | 回调函数。当发送成功,err为undefined,否则为错误对象。 |
3318e41f4b71Sopenharmony_ci
3319e41f4b71Sopenharmony_ci**错误码**:
3320e41f4b71Sopenharmony_ci
3321e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
3322e41f4b71Sopenharmony_ci
3323e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
3324e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
3325e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
3326e41f4b71Sopenharmony_ci|401 | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verification failed.                 |
3327e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
3328e41f4b71Sopenharmony_ci|2900001 | Service stopped.                         |
3329e41f4b71Sopenharmony_ci|2900099 | Operation failed.                        |
3330e41f4b71Sopenharmony_ci
3331e41f4b71Sopenharmony_ci**示例:**
3332e41f4b71Sopenharmony_ci
3333e41f4b71Sopenharmony_ci```js
3334e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
3335e41f4b71Sopenharmony_ci// 创建descriptors
3336e41f4b71Sopenharmony_cilet descriptors: Array<ble.BLEDescriptor> = [];
3337e41f4b71Sopenharmony_cilet arrayBuffer = new ArrayBuffer(8);
3338e41f4b71Sopenharmony_cilet descV = new Uint8Array(arrayBuffer);
3339e41f4b71Sopenharmony_cidescV[0] = 11;
3340e41f4b71Sopenharmony_cilet descriptor: ble.BLEDescriptor = {serviceUuid: '00001810-0000-1000-8000-00805F9B34FB',
3341e41f4b71Sopenharmony_ci  characteristicUuid: '00001820-0000-1000-8000-00805F9B34FB',
3342e41f4b71Sopenharmony_ci  descriptorUuid: '00002902-0000-1000-8000-00805F9B34FB', descriptorValue: arrayBuffer};
3343e41f4b71Sopenharmony_cidescriptors[0] = descriptor;
3344e41f4b71Sopenharmony_cilet arrayBufferC = new ArrayBuffer(8);
3345e41f4b71Sopenharmony_cilet characteristic: ble.BLECharacteristic = {serviceUuid: '00001810-0000-1000-8000-00805F9B34FB',
3346e41f4b71Sopenharmony_ci  characteristicUuid: '00001820-0000-1000-8000-00805F9B34FB', characteristicValue: arrayBufferC, descriptors:descriptors};
3347e41f4b71Sopenharmony_citry {
3348e41f4b71Sopenharmony_ci  let device: ble.GattClientDevice = ble.createGattClientDevice('XX:XX:XX:XX:XX:XX');
3349e41f4b71Sopenharmony_ci  device.setCharacteristicChangeIndication(characteristic, false, (err: BusinessError) => {
3350e41f4b71Sopenharmony_ci    if (err) {
3351e41f4b71Sopenharmony_ci      console.info('notifyCharacteristicChanged callback failed');
3352e41f4b71Sopenharmony_ci    } else {
3353e41f4b71Sopenharmony_ci      console.info('notifyCharacteristicChanged callback successful');
3354e41f4b71Sopenharmony_ci    }
3355e41f4b71Sopenharmony_ci  });
3356e41f4b71Sopenharmony_ci} catch (err) {
3357e41f4b71Sopenharmony_ci  console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
3358e41f4b71Sopenharmony_ci}
3359e41f4b71Sopenharmony_ci
3360e41f4b71Sopenharmony_ci```
3361e41f4b71Sopenharmony_ci
3362e41f4b71Sopenharmony_ci
3363e41f4b71Sopenharmony_ci### setCharacteristicChangeIndication
3364e41f4b71Sopenharmony_ci
3365e41f4b71Sopenharmony_cisetCharacteristicChangeIndication(characteristic: BLECharacteristic, enable: boolean): Promise&lt;void&gt;
3366e41f4b71Sopenharmony_ci
3367e41f4b71Sopenharmony_ci向服务端发送设置通知此特征值请求,需要对端设备的回复。使用Promise异步回调。
3368e41f4b71Sopenharmony_ci
3369e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
3370e41f4b71Sopenharmony_ci
3371e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
3372e41f4b71Sopenharmony_ci
3373e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core3374e41f4b71Sopenharmony_ci
3375e41f4b71Sopenharmony_ci**参数:**
3376e41f4b71Sopenharmony_ci
3377e41f4b71Sopenharmony_ci| 参数名            | 类型                                      | 必填   | 说明                            |
3378e41f4b71Sopenharmony_ci| -------------- | --------------------------------------- | ---- | ----------------------------- |
3379e41f4b71Sopenharmony_ci| characteristic | [BLECharacteristic](#blecharacteristic) | 是    | 蓝牙低功耗特征。                      |
3380e41f4b71Sopenharmony_ci| enable         | boolean                                 | 是    | 启用接收notify设置为true,否则设置为false。 |
3381e41f4b71Sopenharmony_ci
3382e41f4b71Sopenharmony_ci**返回值:**
3383e41f4b71Sopenharmony_ci
3384e41f4b71Sopenharmony_ci| 类型                                       | 说明                         |
3385e41f4b71Sopenharmony_ci| ---------------------------------------- | -------------------------- |
3386e41f4b71Sopenharmony_ci| Promise&lt;void&gt; | 返回Promise对象。 |
3387e41f4b71Sopenharmony_ci
3388e41f4b71Sopenharmony_ci**错误码**:
3389e41f4b71Sopenharmony_ci
3390e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
3391e41f4b71Sopenharmony_ci
3392e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
3393e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
3394e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
3395e41f4b71Sopenharmony_ci|401 | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verification failed.                 |
3396e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
3397e41f4b71Sopenharmony_ci|2900001 | Service stopped.                         |
3398e41f4b71Sopenharmony_ci|2900099 | Operation failed.                        |
3399e41f4b71Sopenharmony_ci
3400e41f4b71Sopenharmony_ci**示例:**
3401e41f4b71Sopenharmony_ci
3402e41f4b71Sopenharmony_ci```js
3403e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
3404e41f4b71Sopenharmony_ci// 创建descriptors
3405e41f4b71Sopenharmony_cilet descriptors: Array<ble.BLEDescriptor> = [];
3406e41f4b71Sopenharmony_cilet arrayBuffer = new ArrayBuffer(8);
3407e41f4b71Sopenharmony_cilet descV = new Uint8Array(arrayBuffer);
3408e41f4b71Sopenharmony_cidescV[0] = 11;
3409e41f4b71Sopenharmony_cilet descriptor: ble.BLEDescriptor = {serviceUuid: '00001810-0000-1000-8000-00805F9B34FB',
3410e41f4b71Sopenharmony_ci  characteristicUuid: '00001820-0000-1000-8000-00805F9B34FB',
3411e41f4b71Sopenharmony_ci  descriptorUuid: '00002902-0000-1000-8000-00805F9B34FB', descriptorValue: arrayBuffer};
3412e41f4b71Sopenharmony_cidescriptors[0] = descriptor;
3413e41f4b71Sopenharmony_cilet arrayBufferC = new ArrayBuffer(8);
3414e41f4b71Sopenharmony_cilet characteristic: ble.BLECharacteristic = {serviceUuid: '00001810-0000-1000-8000-00805F9B34FB',
3415e41f4b71Sopenharmony_ci  characteristicUuid: '00001820-0000-1000-8000-00805F9B34FB', characteristicValue: arrayBufferC, descriptors:descriptors};
3416e41f4b71Sopenharmony_citry {
3417e41f4b71Sopenharmony_ci  let device: ble.GattClientDevice = ble.createGattClientDevice('XX:XX:XX:XX:XX:XX');
3418e41f4b71Sopenharmony_ci  device.setCharacteristicChangeIndication(characteristic, false);
3419e41f4b71Sopenharmony_ci} catch (err) {
3420e41f4b71Sopenharmony_ci  console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
3421e41f4b71Sopenharmony_ci}
3422e41f4b71Sopenharmony_ci
3423e41f4b71Sopenharmony_ci```
3424e41f4b71Sopenharmony_ci
3425e41f4b71Sopenharmony_ci
3426e41f4b71Sopenharmony_ci### on('BLECharacteristicChange')
3427e41f4b71Sopenharmony_ci
3428e41f4b71Sopenharmony_cion(type: 'BLECharacteristicChange', callback: Callback&lt;BLECharacteristic&gt;): void
3429e41f4b71Sopenharmony_ci
3430e41f4b71Sopenharmony_ci订阅蓝牙低功耗设备的特征值变化事件。需要先调用[setCharacteristicChangeNotification](#setcharacteristicchangenotification)接口或[setCharacteristicChangeIndication](#setcharacteristicchangeindication)接口才能接收server端的通知。使用Callback异步回调。
3431e41f4b71Sopenharmony_ci
3432e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
3433e41f4b71Sopenharmony_ci
3434e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
3435e41f4b71Sopenharmony_ci
3436e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core3437e41f4b71Sopenharmony_ci
3438e41f4b71Sopenharmony_ci**参数:**
3439e41f4b71Sopenharmony_ci
3440e41f4b71Sopenharmony_ci| 参数名      | 类型                                       | 必填   | 说明                                       |
3441e41f4b71Sopenharmony_ci| -------- | ---------------------------------------- | ---- | ---------------------------------------- |
3442e41f4b71Sopenharmony_ci| type     | string                                   | 是    | 填写"BLECharacteristicChange"字符串,表示特征值变化事件。 |
3443e41f4b71Sopenharmony_ci| callback | Callback&lt;[BLECharacteristic](#blecharacteristic)&gt; | 是    | 表示蓝牙低功耗设备的特征值变化事件的回调函数。                  |
3444e41f4b71Sopenharmony_ci
3445e41f4b71Sopenharmony_ci**错误码**:
3446e41f4b71Sopenharmony_ci
3447e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
3448e41f4b71Sopenharmony_ci
3449e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
3450e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
3451e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
3452e41f4b71Sopenharmony_ci|401 | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verification failed.                 |
3453e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
3454e41f4b71Sopenharmony_ci
3455e41f4b71Sopenharmony_ci**示例:**
3456e41f4b71Sopenharmony_ci
3457e41f4b71Sopenharmony_ci```js
3458e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
3459e41f4b71Sopenharmony_cifunction CharacteristicChange(characteristicChangeReq: ble.BLECharacteristic) {
3460e41f4b71Sopenharmony_ci    let serviceUuid: string = characteristicChangeReq.serviceUuid;
3461e41f4b71Sopenharmony_ci    let characteristicUuid: string = characteristicChangeReq.characteristicUuid;
3462e41f4b71Sopenharmony_ci    let value: Uint8Array = new Uint8Array(characteristicChangeReq.characteristicValue);
3463e41f4b71Sopenharmony_ci}
3464e41f4b71Sopenharmony_citry {
3465e41f4b71Sopenharmony_ci    let device: ble.GattClientDevice = ble.createGattClientDevice('XX:XX:XX:XX:XX:XX');
3466e41f4b71Sopenharmony_ci    device.on('BLECharacteristicChange', CharacteristicChange);
3467e41f4b71Sopenharmony_ci} catch (err) {
3468e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
3469e41f4b71Sopenharmony_ci}
3470e41f4b71Sopenharmony_ci```
3471e41f4b71Sopenharmony_ci
3472e41f4b71Sopenharmony_ci
3473e41f4b71Sopenharmony_ci### off('BLECharacteristicChange')
3474e41f4b71Sopenharmony_ci
3475e41f4b71Sopenharmony_cioff(type: 'BLECharacteristicChange', callback?: Callback&lt;BLECharacteristic&gt;): void
3476e41f4b71Sopenharmony_ci
3477e41f4b71Sopenharmony_ci取消订阅蓝牙低功耗设备的特征值变化事件。
3478e41f4b71Sopenharmony_ci
3479e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
3480e41f4b71Sopenharmony_ci
3481e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
3482e41f4b71Sopenharmony_ci
3483e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core3484e41f4b71Sopenharmony_ci
3485e41f4b71Sopenharmony_ci**参数:**
3486e41f4b71Sopenharmony_ci
3487e41f4b71Sopenharmony_ci| 参数名      | 类型                                       | 必填   | 说明                                       |
3488e41f4b71Sopenharmony_ci| -------- | ---------------------------------------- | ---- | ---------------------------------------- |
3489e41f4b71Sopenharmony_ci| type     | string                                   | 是    | 填写"BLECharacteristicChange"字符串,表示特征值变化事件。 |
3490e41f4b71Sopenharmony_ci| callback | Callback&lt;[BLECharacteristic](#blecharacteristic)&gt; | 否    | 表示取消订阅蓝牙低功耗设备的特征值变化事件。不填该参数则取消订阅该type对应的所有回调。 |
3491e41f4b71Sopenharmony_ci
3492e41f4b71Sopenharmony_ci**错误码**:
3493e41f4b71Sopenharmony_ci
3494e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
3495e41f4b71Sopenharmony_ci
3496e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
3497e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
3498e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
3499e41f4b71Sopenharmony_ci|401 | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verification failed.                 |
3500e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
3501e41f4b71Sopenharmony_ci
3502e41f4b71Sopenharmony_ci**示例:**
3503e41f4b71Sopenharmony_ci
3504e41f4b71Sopenharmony_ci```js
3505e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
3506e41f4b71Sopenharmony_citry {
3507e41f4b71Sopenharmony_ci    let device: ble.GattClientDevice = ble.createGattClientDevice('XX:XX:XX:XX:XX:XX');
3508e41f4b71Sopenharmony_ci    device.off('BLECharacteristicChange');
3509e41f4b71Sopenharmony_ci} catch (err) {
3510e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
3511e41f4b71Sopenharmony_ci}
3512e41f4b71Sopenharmony_ci```
3513e41f4b71Sopenharmony_ci
3514e41f4b71Sopenharmony_ci
3515e41f4b71Sopenharmony_ci### on('BLEConnectionStateChange')
3516e41f4b71Sopenharmony_ci
3517e41f4b71Sopenharmony_cion(type: 'BLEConnectionStateChange', callback: Callback&lt;BLEConnectionChangeState&gt;): void
3518e41f4b71Sopenharmony_ci
3519e41f4b71Sopenharmony_ciclient端订阅蓝牙低功耗设备的连接状态变化事件。使用Callback异步回调。
3520e41f4b71Sopenharmony_ci
3521e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
3522e41f4b71Sopenharmony_ci
3523e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
3524e41f4b71Sopenharmony_ci
3525e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core3526e41f4b71Sopenharmony_ci
3527e41f4b71Sopenharmony_ci**参数:**
3528e41f4b71Sopenharmony_ci
3529e41f4b71Sopenharmony_ci| 参数名      | 类型                                       | 必填   | 说明                                       |
3530e41f4b71Sopenharmony_ci| -------- | ---------------------------------------- | ---- | ---------------------------------------- |
3531e41f4b71Sopenharmony_ci| type     | string                                   | 是    | 填写"BLEConnectionStateChange"字符串,表示连接状态变化事件。 |
3532e41f4b71Sopenharmony_ci| callback | Callback&lt;[BLEConnectionChangeState](#bleconnectionchangestate)&gt; | 是    | 表示连接状态,已连接或断开。                           |
3533e41f4b71Sopenharmony_ci
3534e41f4b71Sopenharmony_ci**错误码**:
3535e41f4b71Sopenharmony_ci
3536e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
3537e41f4b71Sopenharmony_ci
3538e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
3539e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
3540e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
3541e41f4b71Sopenharmony_ci|401 | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verification failed.                 |
3542e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
3543e41f4b71Sopenharmony_ci
3544e41f4b71Sopenharmony_ci**示例:**
3545e41f4b71Sopenharmony_ci
3546e41f4b71Sopenharmony_ci```js
3547e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
3548e41f4b71Sopenharmony_cifunction ConnectStateChanged(state: ble.BLEConnectionChangeState) {
3549e41f4b71Sopenharmony_ci    console.info('bluetooth connect state changed');
3550e41f4b71Sopenharmony_ci    let connectState: ble.ProfileConnectionState = state.state;
3551e41f4b71Sopenharmony_ci}
3552e41f4b71Sopenharmony_citry {
3553e41f4b71Sopenharmony_ci    let device: ble.GattClientDevice = ble.createGattClientDevice('XX:XX:XX:XX:XX:XX');
3554e41f4b71Sopenharmony_ci    device.on('BLEConnectionStateChange', ConnectStateChanged);
3555e41f4b71Sopenharmony_ci} catch (err) {
3556e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
3557e41f4b71Sopenharmony_ci}
3558e41f4b71Sopenharmony_ci```
3559e41f4b71Sopenharmony_ci
3560e41f4b71Sopenharmony_ci
3561e41f4b71Sopenharmony_ci### off('BLEConnectionStateChange')
3562e41f4b71Sopenharmony_ci
3563e41f4b71Sopenharmony_cioff(type: 'BLEConnectionStateChange', callback?: Callback&lt;BLEConnectionChangeState&gt;): void
3564e41f4b71Sopenharmony_ci
3565e41f4b71Sopenharmony_ci取消订阅蓝牙低功耗设备的连接状态变化事件。
3566e41f4b71Sopenharmony_ci
3567e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
3568e41f4b71Sopenharmony_ci
3569e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
3570e41f4b71Sopenharmony_ci
3571e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core3572e41f4b71Sopenharmony_ci
3573e41f4b71Sopenharmony_ci**参数:**
3574e41f4b71Sopenharmony_ci
3575e41f4b71Sopenharmony_ci| 参数名      | 类型                                       | 必填   | 说明                                       |
3576e41f4b71Sopenharmony_ci| -------- | ---------------------------------------- | ---- | ---------------------------------------- |
3577e41f4b71Sopenharmony_ci| type     | string                                   | 是    | 填写"BLEConnectionStateChange"字符串,表示连接状态变化事件。 |
3578e41f4b71Sopenharmony_ci| callback | Callback&lt;[BLEConnectionChangeState](#bleconnectionchangestate)&gt; | 否    | 表示取消订阅蓝牙低功耗设备的连接状态变化事件。不填该参数则取消订阅该type对应的所有回调。 |
3579e41f4b71Sopenharmony_ci
3580e41f4b71Sopenharmony_ci**错误码**:
3581e41f4b71Sopenharmony_ci
3582e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
3583e41f4b71Sopenharmony_ci
3584e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
3585e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
3586e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
3587e41f4b71Sopenharmony_ci|401 | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verification failed.                 |
3588e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
3589e41f4b71Sopenharmony_ci
3590e41f4b71Sopenharmony_ci**示例:**
3591e41f4b71Sopenharmony_ci
3592e41f4b71Sopenharmony_ci```js
3593e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
3594e41f4b71Sopenharmony_citry {
3595e41f4b71Sopenharmony_ci    let device: ble.GattClientDevice = ble.createGattClientDevice('XX:XX:XX:XX:XX:XX');
3596e41f4b71Sopenharmony_ci    device.off('BLEConnectionStateChange');
3597e41f4b71Sopenharmony_ci} catch (err) {
3598e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
3599e41f4b71Sopenharmony_ci}
3600e41f4b71Sopenharmony_ci```
3601e41f4b71Sopenharmony_ci
3602e41f4b71Sopenharmony_ci
3603e41f4b71Sopenharmony_ci### on('BLEMtuChange')
3604e41f4b71Sopenharmony_ci
3605e41f4b71Sopenharmony_cion(type: 'BLEMtuChange', callback: Callback&lt;number&gt;): void
3606e41f4b71Sopenharmony_ci
3607e41f4b71Sopenharmony_ciclient端订阅MTU状态变化事件。使用Callback异步回调。
3608e41f4b71Sopenharmony_ci
3609e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
3610e41f4b71Sopenharmony_ci
3611e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
3612e41f4b71Sopenharmony_ci
3613e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core3614e41f4b71Sopenharmony_ci
3615e41f4b71Sopenharmony_ci**参数:**
3616e41f4b71Sopenharmony_ci
3617e41f4b71Sopenharmony_ci| 参数名      | 类型                                       | 必填   | 说明                                       |
3618e41f4b71Sopenharmony_ci| -------- | ---------------------------------------- | ---- | ---------------------------------------- |
3619e41f4b71Sopenharmony_ci| type     | string                                   | 是    | 必须填写"BLEMtuChange"字符串,表示MTU状态变化事件。填写不正确将导致回调无法注册。 |
3620e41f4b71Sopenharmony_ci| callback | Callback&lt;number&gt; | 是    | 返回MTU字节数的值,通过注册回调函数获取。 |
3621e41f4b71Sopenharmony_ci
3622e41f4b71Sopenharmony_ci**错误码**:
3623e41f4b71Sopenharmony_ci
3624e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
3625e41f4b71Sopenharmony_ci
3626e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
3627e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
3628e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
3629e41f4b71Sopenharmony_ci|401 | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verification failed.                 |
3630e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
3631e41f4b71Sopenharmony_ci
3632e41f4b71Sopenharmony_ci**示例:**
3633e41f4b71Sopenharmony_ci
3634e41f4b71Sopenharmony_ci```js
3635e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
3636e41f4b71Sopenharmony_citry {
3637e41f4b71Sopenharmony_ci    let gattClient: ble.GattClientDevice = ble.createGattClientDevice('XX:XX:XX:XX:XX:XX');
3638e41f4b71Sopenharmony_ci    gattClient.on('BLEMtuChange', (mtu: number) => {
3639e41f4b71Sopenharmony_ci      console.info('BLEMtuChange, mtu: ' + mtu);
3640e41f4b71Sopenharmony_ci    });
3641e41f4b71Sopenharmony_ci} catch (err) {
3642e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
3643e41f4b71Sopenharmony_ci}
3644e41f4b71Sopenharmony_ci```
3645e41f4b71Sopenharmony_ci
3646e41f4b71Sopenharmony_ci
3647e41f4b71Sopenharmony_ci### off('BLEMtuChange')
3648e41f4b71Sopenharmony_ci
3649e41f4b71Sopenharmony_cioff(type: 'BLEMtuChange', callback?: Callback&lt;number&gt;): void
3650e41f4b71Sopenharmony_ci
3651e41f4b71Sopenharmony_ciclient端取消订阅MTU状态变化事件。
3652e41f4b71Sopenharmony_ci
3653e41f4b71Sopenharmony_ci**需要权限**:ohos.permission.ACCESS_BLUETOOTH
3654e41f4b71Sopenharmony_ci
3655e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
3656e41f4b71Sopenharmony_ci
3657e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core3658e41f4b71Sopenharmony_ci
3659e41f4b71Sopenharmony_ci**参数:**
3660e41f4b71Sopenharmony_ci
3661e41f4b71Sopenharmony_ci| 参数名      | 类型                                       | 必填   | 说明                                       |
3662e41f4b71Sopenharmony_ci| -------- | ---------------------------------------- | ---- | ---------------------------------------- |
3663e41f4b71Sopenharmony_ci| type     | string                                   | 是    | 必须填写"BLEMtuChange"字符串,表示MTU状态变化事件。填写不正确将导致回调无法注册。 |
3664e41f4b71Sopenharmony_ci| callback | Callback&lt;number&gt; | 否    | 返回MTU字节数的值,通过注册回调函数获取。不填该参数则取消订阅该type对应的所有回调。 |
3665e41f4b71Sopenharmony_ci
3666e41f4b71Sopenharmony_ci**错误码**:
3667e41f4b71Sopenharmony_ci
3668e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[蓝牙服务子系统错误码](errorcode-bluetoothManager.md)。
3669e41f4b71Sopenharmony_ci
3670e41f4b71Sopenharmony_ci| 错误码ID | 错误信息 |
3671e41f4b71Sopenharmony_ci| -------- | ---------------------------- |
3672e41f4b71Sopenharmony_ci|201 | Permission denied.                 |
3673e41f4b71Sopenharmony_ci|401 | Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verification failed.                 |
3674e41f4b71Sopenharmony_ci|801 | Capability not supported.          |
3675e41f4b71Sopenharmony_ci
3676e41f4b71Sopenharmony_ci**示例:**
3677e41f4b71Sopenharmony_ci
3678e41f4b71Sopenharmony_ci```js
3679e41f4b71Sopenharmony_ciimport { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
3680e41f4b71Sopenharmony_citry {
3681e41f4b71Sopenharmony_ci    let device: ble.GattClientDevice = ble.createGattClientDevice('XX:XX:XX:XX:XX:XX');
3682e41f4b71Sopenharmony_ci    device.off('BLEMtuChange');
3683e41f4b71Sopenharmony_ci} catch (err) {
3684e41f4b71Sopenharmony_ci    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
3685e41f4b71Sopenharmony_ci}
3686e41f4b71Sopenharmony_ci```
3687e41f4b71Sopenharmony_ci
3688e41f4b71Sopenharmony_ci
3689e41f4b71Sopenharmony_ci## GattService
3690e41f4b71Sopenharmony_ci
3691e41f4b71Sopenharmony_ci描述service的接口参数定义。
3692e41f4b71Sopenharmony_ci
3693e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
3694e41f4b71Sopenharmony_ci
3695e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core3696e41f4b71Sopenharmony_ci
3697e41f4b71Sopenharmony_ci| 名称              | 类型                                     | 可读   | 可写   | 说明                                       |
3698e41f4b71Sopenharmony_ci| --------------- | ---------------------------------------- | ---- | ---- | ---------------------------------------- |
3699e41f4b71Sopenharmony_ci| serviceUuid     | string                                   | 是    | 是    | 特定服务(service)的UUID,例如:00001888-0000-1000-8000-00805f9b34fb。 |
3700e41f4b71Sopenharmony_ci| isPrimary       | boolean                                  | 是    | 是    | 如果是主服务设置为true,否则设置为false。                |
3701e41f4b71Sopenharmony_ci| characteristics | Array&lt;[BLECharacteristic](#blecharacteristic)&gt; | 是    | 是    | 当前服务包含的特征列表。                             |
3702e41f4b71Sopenharmony_ci| includeServices | Array&lt;[GattService](#gattservice)&gt; | 是    | 是    | 当前服务依赖的其它服务。                             |
3703e41f4b71Sopenharmony_ci
3704e41f4b71Sopenharmony_ci
3705e41f4b71Sopenharmony_ci## BLECharacteristic
3706e41f4b71Sopenharmony_ci
3707e41f4b71Sopenharmony_ci描述characteristic的接口参数定义 。
3708e41f4b71Sopenharmony_ci
3709e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
3710e41f4b71Sopenharmony_ci
3711e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core3712e41f4b71Sopenharmony_ci
3713e41f4b71Sopenharmony_ci| 名称                  | 类型                                     | 可读   | 可写   | 说明                                 |
3714e41f4b71Sopenharmony_ci| ------------------- | ---------------------------------------- | ---- | ---- | ---------------------------------------- |
3715e41f4b71Sopenharmony_ci| serviceUuid         | string                                   | 是    | 是    | 特定服务(service)的UUID,例如:00001888-0000-1000-8000-00805f9b34fb。 |
3716e41f4b71Sopenharmony_ci| characteristicUuid  | string                  | 是    | 是    | 特定特征(characteristic)的UUID,例如:00002a11-0000-1000-8000-00805f9b34fb。 |
3717e41f4b71Sopenharmony_ci| characteristicValue | ArrayBuffer                              | 是    | 是    | 特征对应的二进制值。                      |
3718e41f4b71Sopenharmony_ci| descriptors         | Array&lt;[BLEDescriptor](#bledescriptor)&gt; | 是    | 是    | 特定特征的描述符列表。                |
3719e41f4b71Sopenharmony_ci| properties  | [GattProperties](#gattproperties) |   是   | 是     | 特定特征的属性描述。     |
3720e41f4b71Sopenharmony_ci
3721e41f4b71Sopenharmony_ci
3722e41f4b71Sopenharmony_ci## BLEDescriptor
3723e41f4b71Sopenharmony_ci
3724e41f4b71Sopenharmony_ci描述descriptor的接口参数定义。
3725e41f4b71Sopenharmony_ci
3726e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
3727e41f4b71Sopenharmony_ci
3728e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core3729e41f4b71Sopenharmony_ci
3730e41f4b71Sopenharmony_ci| 名称                 | 类型        | 可读   | 可写   | 说明                                       |
3731e41f4b71Sopenharmony_ci| ------------------ | ----------- | ---- | ---- | ---------------------------------------- |
3732e41f4b71Sopenharmony_ci| serviceUuid        | string      | 是    | 是    | 特定服务(service)的UUID,例如:00001888-0000-1000-8000-00805f9b34fb。 |
3733e41f4b71Sopenharmony_ci| characteristicUuid | string      | 是    | 是    | 特定特征(characteristic)的UUID,例如:00002a11-0000-1000-8000-00805f9b34fb。 |
3734e41f4b71Sopenharmony_ci| descriptorUuid     | string      | 是    | 是    | 描述符(descriptor)的UUID,例如:00002902-0000-1000-8000-00805f9b34fb。 |
3735e41f4b71Sopenharmony_ci| descriptorValue    | ArrayBuffer | 是    | 是    | 描述符对应的二进制值。                              |
3736e41f4b71Sopenharmony_ci
3737e41f4b71Sopenharmony_ci
3738e41f4b71Sopenharmony_ci## NotifyCharacteristic
3739e41f4b71Sopenharmony_ci
3740e41f4b71Sopenharmony_ci描述server端特征值变化时发送的特征通知参数定义。
3741e41f4b71Sopenharmony_ci
3742e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
3743e41f4b71Sopenharmony_ci
3744e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core3745e41f4b71Sopenharmony_ci
3746e41f4b71Sopenharmony_ci| 名称                  | 类型        | 可读   | 可写   | 说明                                       |
3747e41f4b71Sopenharmony_ci| ------------------- | ----------- | ---- | ---- | ---------------------------------------- |
3748e41f4b71Sopenharmony_ci| serviceUuid         | string      | 是    | 是    | 特定服务(service)的UUID,例如:00001888-0000-1000-8000-00805f9b34fb。 |
3749e41f4b71Sopenharmony_ci| characteristicUuid  | string      | 是    | 是    | 特定特征(characteristic)的UUID,例如:00002a11-0000-1000-8000-00805f9b34fb。 |
3750e41f4b71Sopenharmony_ci| characteristicValue | ArrayBuffer | 是    | 是    | 特征对应的二进制值。                               |
3751e41f4b71Sopenharmony_ci| confirm             | boolean     | 是    | 是    | 如果是indication,对端需要回复确认,则设置为true;如果是notification,对端不需要回复确认,则设置为false。 |
3752e41f4b71Sopenharmony_ci
3753e41f4b71Sopenharmony_ci
3754e41f4b71Sopenharmony_ci## CharacteristicReadRequest
3755e41f4b71Sopenharmony_ci
3756e41f4b71Sopenharmony_ci描述server端订阅后收到的特征值读请求事件参数结构。
3757e41f4b71Sopenharmony_ci
3758e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
3759e41f4b71Sopenharmony_ci
3760e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core3761e41f4b71Sopenharmony_ci
3762e41f4b71Sopenharmony_ci| 名称                 | 类型   | 可读   | 可写   | 说明                                       |
3763e41f4b71Sopenharmony_ci| ------------------ | ------ | ---- | ---- | ---------------------------------------- |
3764e41f4b71Sopenharmony_ci| deviceId           | string | 是    | 否    | 表示发送特征值读请求的远端设备地址,例如:"XX:XX:XX:XX:XX:XX"。 |
3765e41f4b71Sopenharmony_ci| transId            | number | 是    | 否    | 表示读请求的传输ID,server端回复响应时需填写相同的传输ID。       |
3766e41f4b71Sopenharmony_ci| offset             | number | 是    | 否    | 表示读特征值数据的起始位置。例如:k表示从第k个字节开始读,server端回复响应时需填写相同的offset。 |
3767e41f4b71Sopenharmony_ci| characteristicUuid | string | 是    | 否    | 特定特征(characteristic)的UUID,例如:00002a11-0000-1000-8000-00805f9b34fb。 |
3768e41f4b71Sopenharmony_ci| serviceUuid        | string | 是    | 否    | 特定服务(service)的UUID,例如:00001888-0000-1000-8000-00805f9b34fb。 |
3769e41f4b71Sopenharmony_ci
3770e41f4b71Sopenharmony_ci
3771e41f4b71Sopenharmony_ci## CharacteristicWriteRequest
3772e41f4b71Sopenharmony_ci
3773e41f4b71Sopenharmony_ci描述server端订阅后收到的特征值写请求事件参数结构。
3774e41f4b71Sopenharmony_ci
3775e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
3776e41f4b71Sopenharmony_ci
3777e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core3778e41f4b71Sopenharmony_ci
3779e41f4b71Sopenharmony_ci| 名称                 | 类型   | 可读   | 可写   | 说明                                       |
3780e41f4b71Sopenharmony_ci| ------------------ | ------ | ---- | ---- | ---------------------------------------- |
3781e41f4b71Sopenharmony_ci| deviceId           | string | 是    | 否    | 表示发送特征值写请求的远端设备地址,例如:"XX:XX:XX:XX:XX:XX"。 |
3782e41f4b71Sopenharmony_ci| transId            | number | 是    | 否    | 表示写请求的传输ID,server端回复响应时需填写相同的传输ID。       |
3783e41f4b71Sopenharmony_ci| offset             | number | 是    | 否    | 表示写特征值数据的起始位置。例如:k表示从第k个字节开始写,server端回复响应时需填写相同的offset。 |
3784e41f4b71Sopenharmony_ci| isPrepared             | boolean | 是    | 否    | 表示写请求是否立即执行。true表示立即执行。 |
3785e41f4b71Sopenharmony_ci| needRsp             | boolean | 是    | 否    | 表示是否要给client端回复响应。true表示需要回复。 |
3786e41f4b71Sopenharmony_ci| value             | ArrayBuffer | 是    | 否    | 表示写入的描述符二进制数据。 |
3787e41f4b71Sopenharmony_ci| characteristicUuid | string | 是    | 否    | 特定特征(characteristic)的UUID,例如:00002a11-0000-1000-8000-00805f9b34fb。 |
3788e41f4b71Sopenharmony_ci| serviceUuid        | string | 是    | 否    | 特定服务(service)的UUID,例如:00001888-0000-1000-8000-00805f9b34fb。 |
3789e41f4b71Sopenharmony_ci
3790e41f4b71Sopenharmony_ci
3791e41f4b71Sopenharmony_ci## DescriptorReadRequest
3792e41f4b71Sopenharmony_ci
3793e41f4b71Sopenharmony_ci描述server端订阅后收到的描述符读请求事件参数结构。
3794e41f4b71Sopenharmony_ci
3795e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
3796e41f4b71Sopenharmony_ci
3797e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core3798e41f4b71Sopenharmony_ci
3799e41f4b71Sopenharmony_ci| 名称                 | 类型   | 可读   | 可写   | 说明                                       |
3800e41f4b71Sopenharmony_ci| ------------------ | ------ | ---- | ---- | ---------------------------------------- |
3801e41f4b71Sopenharmony_ci| deviceId           | string | 是    | 否    | 表示发送描述符读请求的远端设备地址,例如:"XX:XX:XX:XX:XX:XX"。 |
3802e41f4b71Sopenharmony_ci| transId            | number | 是    | 否    | 表示读请求的传输ID,server端回复响应时需填写相同的传输ID。       |
3803e41f4b71Sopenharmony_ci| offset             | number | 是    | 否    | 表示读描述符数据的起始位置。例如:k表示从第k个字节开始读,server端回复响应时需填写相同的offset。 |
3804e41f4b71Sopenharmony_ci| descriptorUuid     | string | 是    | 否    | 表示描述符(descriptor)的UUID,例如:00002902-0000-1000-8000-00805f9b34fb。 |
3805e41f4b71Sopenharmony_ci| characteristicUuid | string | 是    | 否    | 特定特征(characteristic)的UUID,例如:00002a11-0000-1000-8000-00805f9b34fb。 |
3806e41f4b71Sopenharmony_ci| serviceUuid        | string | 是    | 否    | 特定服务(service)的UUID,例如:00001888-0000-1000-8000-00805f9b34fb。 |
3807e41f4b71Sopenharmony_ci
3808e41f4b71Sopenharmony_ci
3809e41f4b71Sopenharmony_ci## DescriptorWriteRequest
3810e41f4b71Sopenharmony_ci
3811e41f4b71Sopenharmony_ci描述server端订阅后收到的描述符写请求事件参数结构。
3812e41f4b71Sopenharmony_ci
3813e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
3814e41f4b71Sopenharmony_ci
3815e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core3816e41f4b71Sopenharmony_ci
3817e41f4b71Sopenharmony_ci| 名称                 | 类型        | 可读   | 可写   | 说明                                       |
3818e41f4b71Sopenharmony_ci| ------------------ | ----------- | ---- | ---- | ---------------------------------------- |
3819e41f4b71Sopenharmony_ci| deviceId           | string      | 是    | 否    | 表示发送描述符写请求的远端设备地址,例如:"XX:XX:XX:XX:XX:XX"。 |
3820e41f4b71Sopenharmony_ci| transId            | number      | 是    | 否    | 表示写请求的传输ID,server端回复响应时需填写相同的传输ID。       |
3821e41f4b71Sopenharmony_ci| offset             | number      | 是    | 否    | 表示写描述符数据的起始位置。例如:k表示从第k个字节开始写,server端回复响应时需填写相同的offset。 |
3822e41f4b71Sopenharmony_ci| isPrepared             | boolean     | 是    | 否    | 表示写请求是否立即执行。                             |
3823e41f4b71Sopenharmony_ci| needRsp            | boolean     | 是    | 否    | 表示是否要给client端回复响应。                       |
3824e41f4b71Sopenharmony_ci| value              | ArrayBuffer | 是    | 否    | 表示写入的描述符二进制数据。                           |
3825e41f4b71Sopenharmony_ci| descriptorUuid     | string      | 是    | 否    | 表示描述符(descriptor)的UUID,例如:00002902-0000-1000-8000-00805f9b34fb。 |
3826e41f4b71Sopenharmony_ci| characteristicUuid | string      | 是    | 否    | 特定特征(characteristic)的UUID,例如:00002a11-0000-1000-8000-00805f9b34fb。 |
3827e41f4b71Sopenharmony_ci| serviceUuid        | string      | 是    | 否    | 特定服务(service)的UUID,例如:00001888-0000-1000-8000-00805f9b34fb。 |
3828e41f4b71Sopenharmony_ci
3829e41f4b71Sopenharmony_ci
3830e41f4b71Sopenharmony_ci## ServerResponse
3831e41f4b71Sopenharmony_ci
3832e41f4b71Sopenharmony_ci描述server端回复client端读/写请求的响应参数结构。
3833e41f4b71Sopenharmony_ci
3834e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
3835e41f4b71Sopenharmony_ci
3836e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core3837e41f4b71Sopenharmony_ci
3838e41f4b71Sopenharmony_ci| 名称       | 类型        | 可读   | 可写   | 说明                                     |
3839e41f4b71Sopenharmony_ci| -------- | ----------- | ---- | ---- | -------------------------------------- |
3840e41f4b71Sopenharmony_ci| deviceId | string      | 是    | 否    | 表示远端设备地址,例如:"XX:XX:XX:XX:XX:XX"。       |
3841e41f4b71Sopenharmony_ci| transId  | number      | 是    | 否    | 表示请求的传输ID,与订阅的读/写请求事件携带的ID保持一致。        |
3842e41f4b71Sopenharmony_ci| status   | number      | 是    | 否    | 表示响应的状态,设置为0即可,表示正常。                   |
3843e41f4b71Sopenharmony_ci| offset   | number      | 是    | 否    | 表示请求的读/写起始位置,与订阅的读/写请求事件携带的offset保持一致。 |
3844e41f4b71Sopenharmony_ci| value    | ArrayBuffer | 是    | 否    | 表示回复响应的二进制数据。                          |
3845e41f4b71Sopenharmony_ci
3846e41f4b71Sopenharmony_ci
3847e41f4b71Sopenharmony_ci## BLEConnectionChangeState
3848e41f4b71Sopenharmony_ci
3849e41f4b71Sopenharmony_ci描述Gatt profile连接状态。
3850e41f4b71Sopenharmony_ci
3851e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
3852e41f4b71Sopenharmony_ci
3853e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core3854e41f4b71Sopenharmony_ci
3855e41f4b71Sopenharmony_ci| 名称     | 类型                                          | 可读 | 可写 | 说明                                          |
3856e41f4b71Sopenharmony_ci| -------- | ------------------------------------------------- | ---- | ---- | --------------------------------------------- |
3857e41f4b71Sopenharmony_ci| deviceId | string                                            | 是   | 否   | 表示远端设备地址,例如:"XX:XX:XX:XX:XX:XX"。 |
3858e41f4b71Sopenharmony_ci| state    | [ProfileConnectionState](js-apis-bluetooth-constant.md#profileconnectionstate) | 是   | 是   | 表示BLE连接状态的枚举。                       |
3859e41f4b71Sopenharmony_ci
3860e41f4b71Sopenharmony_ci
3861e41f4b71Sopenharmony_ci## ScanResult
3862e41f4b71Sopenharmony_ci
3863e41f4b71Sopenharmony_ci扫描结果上报数据。
3864e41f4b71Sopenharmony_ci
3865e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
3866e41f4b71Sopenharmony_ci
3867e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core3868e41f4b71Sopenharmony_ci
3869e41f4b71Sopenharmony_ci| 名称       | 类型        | 可读   | 可写   | 说明                                 |
3870e41f4b71Sopenharmony_ci| -------- | ----------- | ---- | ---- | ---------------------------------- |
3871e41f4b71Sopenharmony_ci| deviceId | string      | 是    | 否    | 表示扫描到的设备地址,例如:"XX:XX:XX:XX:XX:XX"。基于信息安全考虑,此处获取的设备地址为随机MAC地址。配对成功后,该地址不会变更;已配对设备取消配对后重新扫描或蓝牙服务下电时,该随机地址会变更。 |
3872e41f4b71Sopenharmony_ci| rssi     | number      | 是    | 否    | 表示扫描到的设备的rssi值。                    |
3873e41f4b71Sopenharmony_ci| data     | ArrayBuffer | 是    | 否    | 表示扫描到的设备发送的广播包。                    |
3874e41f4b71Sopenharmony_ci| deviceName | string | 是    | 否    | 表示扫描到的设备名称。                    |
3875e41f4b71Sopenharmony_ci| connectable  | boolean | 是    | 否    | 表示扫描到的设备是否可连接。true表示可连接,false表示不可连接。                    |
3876e41f4b71Sopenharmony_ci
3877e41f4b71Sopenharmony_ci
3878e41f4b71Sopenharmony_ci## AdvertiseSetting
3879e41f4b71Sopenharmony_ci
3880e41f4b71Sopenharmony_ci描述蓝牙低功耗设备发送广播的参数。
3881e41f4b71Sopenharmony_ci
3882e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
3883e41f4b71Sopenharmony_ci
3884e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core3885e41f4b71Sopenharmony_ci
3886e41f4b71Sopenharmony_ci| 名称          | 类型    | 可读   | 可写   | 说明                                       |
3887e41f4b71Sopenharmony_ci| ----------- | ------- | ---- | ---- | ---------------------------------------- |
3888e41f4b71Sopenharmony_ci| interval    | number  | 是    | 是    | 表示广播间隔,最小值设置160个slot表示100ms,最大值设置16384个slot,默认值设置为1600个slot表示1s。 |
3889e41f4b71Sopenharmony_ci| txPower     | number  | 是    | 是    | 表示发送功率,最小值设置-127,最大值设置1,默认值设置-7,单位dbm。推荐值:高档(1),中档(-7),低档(-15)。   |
3890e41f4b71Sopenharmony_ci| connectable | boolean | 是    | 是    | 表示是否是可连接广播,默认值设置为true,表示可连接,false表示不可连接。                   |
3891e41f4b71Sopenharmony_ci
3892e41f4b71Sopenharmony_ci
3893e41f4b71Sopenharmony_ci## AdvertiseData
3894e41f4b71Sopenharmony_ci
3895e41f4b71Sopenharmony_ci描述BLE广播数据包的内容,广播包数据长度为31个字节。
3896e41f4b71Sopenharmony_ci
3897e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
3898e41f4b71Sopenharmony_ci
3899e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core3900e41f4b71Sopenharmony_ci
3901e41f4b71Sopenharmony_ci| 名称              | 类型                                     | 可读   | 可写   | 说明                          |
3902e41f4b71Sopenharmony_ci| --------------- | ---------------------------------------- | ---- | ---- | --------------------------- |
3903e41f4b71Sopenharmony_ci| serviceUuids    | Array&lt;string&gt;                      | 是    | 是    | 表示要广播的服务&nbsp;UUID&nbsp;列表。 |
3904e41f4b71Sopenharmony_ci| manufactureData | Array&lt;[ManufactureData](#manufacturedata)&gt; | 是    | 是    | 表示要广播的广播的制造商信息列表。           |
3905e41f4b71Sopenharmony_ci| serviceData     | Array&lt;[ServiceData](#servicedata)&gt; | 是    | 是    | 表示要广播的服务数据列表。               |
3906e41f4b71Sopenharmony_ci| includeDeviceName | boolean     | 是    | 是    | 表示是否携带设备名,可选参数。true表示携带,false或未设置此参数表示不携带。注意带上设备名时广播包长度不能超出31个字节。        |
3907e41f4b71Sopenharmony_ci
3908e41f4b71Sopenharmony_ci## AdvertisingParams<sup>11+</sup>
3909e41f4b71Sopenharmony_ci
3910e41f4b71Sopenharmony_ci描述首次启动广播设置的参数。
3911e41f4b71Sopenharmony_ci
3912e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core3913e41f4b71Sopenharmony_ci
3914e41f4b71Sopenharmony_ci| 名称                | 类型                             | 可读  | 可写  | 说明                      |
3915e41f4b71Sopenharmony_ci| ------------------- | ------------------------------- | ----- | ----- | ------------------------ |
3916e41f4b71Sopenharmony_ci| advertisingSettings<sup>11+</sup> | [AdvertiseSetting](#advertisesetting) | 是    | 是    | 表示发送广播的相关参数。    |
3917e41f4b71Sopenharmony_ci| advertisingData<sup>11+</sup>    | [AdvertiseData](#advertisedata) | 是    | 是    | 表示广播的数据包内容。      |
3918e41f4b71Sopenharmony_ci| advertisingResponse<sup>11+</sup> | [AdvertiseData](#advertisedata) | 是    | 是    | 表示回复扫描请求的响应内容。 |
3919e41f4b71Sopenharmony_ci| duration<sup>11+</sup>    | number   | 是    | 是    | 表示发送广播持续的时间。单位为10ms,有效范围为1(10ms)到65535(655350ms),如果未指定此参数或者将其设置为0,则会连续发送广播。    |
3920e41f4b71Sopenharmony_ci
3921e41f4b71Sopenharmony_ci## AdvertisingEnableParams<sup>11+</sup>
3922e41f4b71Sopenharmony_ci
3923e41f4b71Sopenharmony_ci描述临时启动广播设置的参数。
3924e41f4b71Sopenharmony_ci
3925e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core3926e41f4b71Sopenharmony_ci
3927e41f4b71Sopenharmony_ci| 名称                | 类型                   | 可读  | 可写  | 说明                      |
3928e41f4b71Sopenharmony_ci| ------------------- | --------------------- | ----- | ----- | ------------------------ |
3929e41f4b71Sopenharmony_ci| advertisingId<sup>11+</sup>       | number                | 是    | 是    | 表示当前广播的ID标识。     |
3930e41f4b71Sopenharmony_ci| duration<sup>11+</sup>            | number                | 是    | 是    | 表示发送广播持续的时间。单位为10ms,有效范围为1(10ms)到65535(655350ms),如果未指定此参数或者将其设置为0,则会连续发送广播。   |
3931e41f4b71Sopenharmony_ci
3932e41f4b71Sopenharmony_ci## AdvertisingDisableParams<sup>11+</sup>
3933e41f4b71Sopenharmony_ci
3934e41f4b71Sopenharmony_ci描述临时停止广播设置的参数。
3935e41f4b71Sopenharmony_ci
3936e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core3937e41f4b71Sopenharmony_ci
3938e41f4b71Sopenharmony_ci| 名称                | 类型                   | 可读  | 可写  | 说明                      |
3939e41f4b71Sopenharmony_ci| ------------------- | --------------------- | ----- | ----- | ------------------------ |
3940e41f4b71Sopenharmony_ci| advertisingId<sup>11+</sup>       | number                | 是    | 是    | 表示当前广播的ID标识。     |
3941e41f4b71Sopenharmony_ci
3942e41f4b71Sopenharmony_ci## AdvertisingStateChangeInfo<sup>11+</sup>
3943e41f4b71Sopenharmony_ci
3944e41f4b71Sopenharmony_ci描述广播启动、停止等状态信息。
3945e41f4b71Sopenharmony_ci
3946e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core3947e41f4b71Sopenharmony_ci
3948e41f4b71Sopenharmony_ci| 名称                | 类型                                     | 可读  | 可写  | 说明                      |
3949e41f4b71Sopenharmony_ci| ------------------- | --------------------------------------- | ----- | ----- | ------------------------ |
3950e41f4b71Sopenharmony_ci| advertisingId<sup>11+</sup>       | number                                  | 是    | 是    | 表示广播ID标识。           |
3951e41f4b71Sopenharmony_ci| state<sup>11+</sup>               | [AdvertisingState](#advertisingstate11)   | 是    | 是    | 表示广播状态。             |
3952e41f4b71Sopenharmony_ci
3953e41f4b71Sopenharmony_ci## ManufactureData
3954e41f4b71Sopenharmony_ci
3955e41f4b71Sopenharmony_ci描述BLE广播数据包的内容。
3956e41f4b71Sopenharmony_ci
3957e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
3958e41f4b71Sopenharmony_ci
3959e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core3960e41f4b71Sopenharmony_ci
3961e41f4b71Sopenharmony_ci| 名称               | 类型                | 可读   | 可写   | 说明                 |
3962e41f4b71Sopenharmony_ci| ---------------- | ------------------- | ---- | ---- | ------------------ |
3963e41f4b71Sopenharmony_ci| manufactureId    | number  | 是    | 是    | 表示制造商的ID,由蓝牙SIG分配。 |
3964e41f4b71Sopenharmony_ci| manufactureValue | ArrayBuffer         | 是    | 是    | 表示制造商发送的制造商数据。     |
3965e41f4b71Sopenharmony_ci
3966e41f4b71Sopenharmony_ci
3967e41f4b71Sopenharmony_ci## ServiceData
3968e41f4b71Sopenharmony_ci
3969e41f4b71Sopenharmony_ci描述广播包中服务数据内容。
3970e41f4b71Sopenharmony_ci
3971e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
3972e41f4b71Sopenharmony_ci
3973e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core3974e41f4b71Sopenharmony_ci
3975e41f4b71Sopenharmony_ci| 名称           | 类型        | 可读   | 可写   | 说明         |
3976e41f4b71Sopenharmony_ci| ------------ | ----------- | ---- | ---- | ---------- |
3977e41f4b71Sopenharmony_ci| serviceUuid  | string      | 是    | 是    | 表示服务的UUID。 |
3978e41f4b71Sopenharmony_ci| serviceValue | ArrayBuffer | 是    | 是    | 表示服务数据。    |
3979e41f4b71Sopenharmony_ci
3980e41f4b71Sopenharmony_ci
3981e41f4b71Sopenharmony_ci## ScanFilter
3982e41f4b71Sopenharmony_ci
3983e41f4b71Sopenharmony_ci扫描过滤参数。
3984e41f4b71Sopenharmony_ci
3985e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
3986e41f4b71Sopenharmony_ci
3987e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core3988e41f4b71Sopenharmony_ci
3989e41f4b71Sopenharmony_ci| 名称                                     | 类型    | 必填  | 说明                                                         |
3990e41f4b71Sopenharmony_ci| ------------------------------------------ | -------- | ---- | ------------------------------------------------------------ |
3991e41f4b71Sopenharmony_ci| deviceId                                 | string      | 否    | 表示过滤的BLE设备地址,例如:"XX:XX:XX:XX:XX:XX"。           |
3992e41f4b71Sopenharmony_ci| name                                     | string      | 否    | 表示过滤的BLE设备名。                                        |
3993e41f4b71Sopenharmony_ci| serviceUuid                              | string      | 否    | 表示过滤包含该UUID服务的设备,例如:00001888-0000-1000-8000-00805f9b34fb。 |
3994e41f4b71Sopenharmony_ci| serviceUuidMask             | string      | 否     | 表示过滤包含该UUID服务掩码的设备,例如:FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF。 |
3995e41f4b71Sopenharmony_ci| serviceSolicitationUuid     | string      | 否     | 表示过滤包含该UUID服务请求的设备,例如:00001888-0000-1000-8000-00805F9B34FB。 |
3996e41f4b71Sopenharmony_ci| serviceSolicitationUuidMask | string      | 否     | 表示过滤包含该UUID服务请求掩码的设备,例如:FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF。 |
3997e41f4b71Sopenharmony_ci| serviceData                 | ArrayBuffer | 否     | 表示过滤包含该服务相关数据的设备,例如:[0x90,0x00,0xF1,0xF2]。 |
3998e41f4b71Sopenharmony_ci| serviceDataMask             | ArrayBuffer | 否     | 表示过滤包含该服务相关数据掩码的设备,例如:[0xFF,0xFF,0xFF,0xFF]。 |
3999e41f4b71Sopenharmony_ci| manufactureId               | number      | 否     | 表示过滤包含该制造商ID的设备,例如:0x0006。                 |
4000e41f4b71Sopenharmony_ci| manufactureData             | ArrayBuffer | 否     | 表示过滤包含该制造商相关数据的设备,例如:[0x1F,0x2F,0x3F]。 |
4001e41f4b71Sopenharmony_ci| manufactureDataMask         | ArrayBuffer | 否     | 表示过滤包含该制造商相关数据掩码的设备,例如:[0xFF,0xFF,0xFF]。 |
4002e41f4b71Sopenharmony_ci
4003e41f4b71Sopenharmony_ci
4004e41f4b71Sopenharmony_ci## ScanOptions
4005e41f4b71Sopenharmony_ci
4006e41f4b71Sopenharmony_ci扫描的配置参数。
4007e41f4b71Sopenharmony_ci
4008e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
4009e41f4b71Sopenharmony_ci
4010e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core4011e41f4b71Sopenharmony_ci
4012e41f4b71Sopenharmony_ci| 名称        | 类型                    | 可读   | 可写   | 说明                                     |
4013e41f4b71Sopenharmony_ci| --------- | ----------------------- | ---- | ---- | -------------------------------------- |
4014e41f4b71Sopenharmony_ci| interval  | number                  | 是    | 是    | 表示扫描结果上报延迟时间,默认值为0。                    |
4015e41f4b71Sopenharmony_ci| dutyMode  | [ScanDuty](#scanduty)   | 是    | 是    | 表示扫描模式,默认值为SCAN_MODE_LOW_POWER。        |
4016e41f4b71Sopenharmony_ci| matchMode | [MatchMode](#matchmode) | 是    | 是    | 表示硬件的过滤匹配模式,默认值为MATCH_MODE_AGGRESSIVE。 |
4017e41f4b71Sopenharmony_ci| phyType<sup>12+</sup> | [PhyType](#phytype12) | 是    | 是    | 表示扫描中使用的PHY类型。 |
4018e41f4b71Sopenharmony_ci
4019e41f4b71Sopenharmony_ci
4020e41f4b71Sopenharmony_ci## GattProperties<a name="GattProperties"></a>
4021e41f4b71Sopenharmony_ci
4022e41f4b71Sopenharmony_ci描述gatt characteristic的属性。
4023e41f4b71Sopenharmony_ci
4024e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
4025e41f4b71Sopenharmony_ci
4026e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core4027e41f4b71Sopenharmony_ci
4028e41f4b71Sopenharmony_ci| 名称       | 类型  | 必填   | 说明          |
4029e41f4b71Sopenharmony_ci| -------- | ------ |---- | ----------- |
4030e41f4b71Sopenharmony_ci| write    | boolean | 否  | 表示该特征支持写操作,true表示需要对端设备的回复。 |
4031e41f4b71Sopenharmony_ci| writeNoResponse | boolean | 否    | true表示该特征支持写操作,无需对端设备回复。 |
4032e41f4b71Sopenharmony_ci| read | boolean   |  否    | true表示该特征支持读操作。 |
4033e41f4b71Sopenharmony_ci| notify | boolean   | 否    | true表示该特征可通知对端设备。 |
4034e41f4b71Sopenharmony_ci| indicate | boolean   | 否    | true表示该特征可通知对端设备,需要对端设备的回复。 |
4035e41f4b71Sopenharmony_ci
4036e41f4b71Sopenharmony_ci
4037e41f4b71Sopenharmony_ci## GattWriteType<a name="GattWriteType"></a>
4038e41f4b71Sopenharmony_ci
4039e41f4b71Sopenharmony_ci枚举,表示gatt写入类型。
4040e41f4b71Sopenharmony_ci
4041e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
4042e41f4b71Sopenharmony_ci
4043e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core4044e41f4b71Sopenharmony_ci
4045e41f4b71Sopenharmony_ci| 名称                                   | 值    | 说明              |
4046e41f4b71Sopenharmony_ci| ------------------------------------| ------ | --------------- |
4047e41f4b71Sopenharmony_ci| WRITE               | 1 | 表示写入特征值,需要对端设备的回复。   |
4048e41f4b71Sopenharmony_ci| WRITE_NO_RESPONSE   | 2 | 表示写入特征值,不需要对端设备的回复。  |
4049e41f4b71Sopenharmony_ci
4050e41f4b71Sopenharmony_ci
4051e41f4b71Sopenharmony_ci## ScanDuty
4052e41f4b71Sopenharmony_ci
4053e41f4b71Sopenharmony_ci枚举,扫描模式。
4054e41f4b71Sopenharmony_ci
4055e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
4056e41f4b71Sopenharmony_ci
4057e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core4058e41f4b71Sopenharmony_ci
4059e41f4b71Sopenharmony_ci| 名称                    | 值  | 说明           |
4060e41f4b71Sopenharmony_ci| --------------------- | ---- | ------------ |
4061e41f4b71Sopenharmony_ci| SCAN_MODE_LOW_POWER   | 0    | 表示低功耗模式,默认值。 |
4062e41f4b71Sopenharmony_ci| SCAN_MODE_BALANCED    | 1    | 表示均衡模式。      |
4063e41f4b71Sopenharmony_ci| SCAN_MODE_LOW_LATENCY | 2    | 表示低延迟模式。     |
4064e41f4b71Sopenharmony_ci
4065e41f4b71Sopenharmony_ci
4066e41f4b71Sopenharmony_ci## MatchMode
4067e41f4b71Sopenharmony_ci
4068e41f4b71Sopenharmony_ci枚举,硬件过滤匹配模式。
4069e41f4b71Sopenharmony_ci
4070e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
4071e41f4b71Sopenharmony_ci
4072e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core4073e41f4b71Sopenharmony_ci
4074e41f4b71Sopenharmony_ci| 名称                    | 值  | 说明                                       |
4075e41f4b71Sopenharmony_ci| --------------------- | ---- | ---------------------------------------- |
4076e41f4b71Sopenharmony_ci| MATCH_MODE_AGGRESSIVE | 1    | 表示硬件上报扫描结果门限较低,比如扫描到的功率较低或者一段时间扫描到的次数较少也触发上报,默认值。 |
4077e41f4b71Sopenharmony_ci| MATCH_MODE_STICKY     | 2    | 表示硬件上报扫描结果门限较高,更高的功率门限以及扫描到多次才会上报。       |
4078e41f4b71Sopenharmony_ci
4079e41f4b71Sopenharmony_ci## AdvertisingState<sup>11+</sup>
4080e41f4b71Sopenharmony_ci
4081e41f4b71Sopenharmony_ci枚举,广播状态。
4082e41f4b71Sopenharmony_ci
4083e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core4084e41f4b71Sopenharmony_ci
4085e41f4b71Sopenharmony_ci| 名称      | 值    | 说明                           |
4086e41f4b71Sopenharmony_ci| --------  | ---- | ------------------------------ |
4087e41f4b71Sopenharmony_ci| STARTED<sup>11+</sup>   | 1    | 表示首次启动广播后的状态。       |
4088e41f4b71Sopenharmony_ci| ENABLED<sup>11+</sup>   | 2    | 表示临时启动广播后的状态。       |
4089e41f4b71Sopenharmony_ci| DISABLED<sup>11+</sup>  | 3    | 表示临时停止广播后的状态。       |
4090e41f4b71Sopenharmony_ci| STOPPED<sup>11+</sup>    | 4    | 表示完全停止广播后的状态。       |
4091e41f4b71Sopenharmony_ci
4092e41f4b71Sopenharmony_ci## PhyType<sup>12+</sup>
4093e41f4b71Sopenharmony_ci
4094e41f4b71Sopenharmony_ci枚举,扫描中使用的PHY类型。
4095e41f4b71Sopenharmony_ci
4096e41f4b71Sopenharmony_ci**原子化服务API**:从API version 12开始,该接口支持在原子化服务中使用。
4097e41f4b71Sopenharmony_ci
4098e41f4b71Sopenharmony_ci**系统能力**:SystemCapability.Communication.Bluetooth.Core4099e41f4b71Sopenharmony_ci
4100e41f4b71Sopenharmony_ci| 名称      | 值    | 说明                           |
4101e41f4b71Sopenharmony_ci| --------  | ---- | ------------------------------ |
4102e41f4b71Sopenharmony_ci| PHY_LE_1M<sup>12+</sup>   | 1    | 表示扫描中使用1M PHY。       |
4103e41f4b71Sopenharmony_ci| PHY_LE_ALL_SUPPORTED<sup>12+</sup>   | 255    | 表示扫描中使用蓝牙协议支持的PHY模式。    |