1e41f4b71Sopenharmony_ci# Rdb_ProgressObserver 2e41f4b71Sopenharmony_ci 3e41f4b71Sopenharmony_ci 4e41f4b71Sopenharmony_ci## Overview 5e41f4b71Sopenharmony_ci 6e41f4b71Sopenharmony_ciDefines the observer for the device-cloud sync progress. 7e41f4b71Sopenharmony_ci 8e41f4b71Sopenharmony_ci**Since**: 11 9e41f4b71Sopenharmony_ci 10e41f4b71Sopenharmony_ci**Related module**: [RDB](_r_d_b.md) 11e41f4b71Sopenharmony_ci 12e41f4b71Sopenharmony_ci 13e41f4b71Sopenharmony_ci## Summary 14e41f4b71Sopenharmony_ci 15e41f4b71Sopenharmony_ci 16e41f4b71Sopenharmony_ci### Member Variables 17e41f4b71Sopenharmony_ci 18e41f4b71Sopenharmony_ci| Name| Description| 19e41f4b71Sopenharmony_ci| -------- | -------- | 20e41f4b71Sopenharmony_ci| [context](_r_d_b.md#context-22) | Context of the device-cloud sync progress observer.| 21e41f4b71Sopenharmony_ci| [callback](_r_d_b.md#callback-22) | Callback used to return the device-cloud sync progress.| 22