1e41f4b71Sopenharmony_ci# ArkUI Subsystem Changelog 2e41f4b71Sopenharmony_ci 3e41f4b71Sopenharmony_ci## cl.arkui.1 Change in Handling of Invalid animationDuration Values for the \<Tabs> Component 4e41f4b71Sopenharmony_ci 5e41f4b71Sopenharmony_ci**Access Level** 6e41f4b71Sopenharmony_ci 7e41f4b71Sopenharmony_ciOther 8e41f4b71Sopenharmony_ci 9e41f4b71Sopenharmony_ci**Reason for Change** 10e41f4b71Sopenharmony_ci 11e41f4b71Sopenharmony_ciWhen the **animationDuration** attribute is set to **null**, the default value should be used. 12e41f4b71Sopenharmony_ci 13e41f4b71Sopenharmony_ci**Change Impact** 14e41f4b71Sopenharmony_ci 15e41f4b71Sopenharmony_ciThis change is a non-compatible change. 16e41f4b71Sopenharmony_ci 17e41f4b71Sopenharmony_ciIn API version 10 and earlier versions, when the **animationDuration** attribute is set to **null**, no tab switching animation is played. 18e41f4b71Sopenharmony_ci 19e41f4b71Sopenharmony_ciSince API version 11, if the **animationDuration** attribute is set to **null**, the default value is used. In this case, when the tab bar is set to **BottomTabBarStyle**,no tab switching animation is played; when the tab bar is any other style, a 300 ms tab switching animation is played. 20e41f4b71Sopenharmony_ci 21e41f4b71Sopenharmony_ci**API Level** 22e41f4b71Sopenharmony_ci 23e41f4b71Sopenharmony_ci11 24e41f4b71Sopenharmony_ci 25e41f4b71Sopenharmony_ci**Change Since** 26e41f4b71Sopenharmony_ci 27e41f4b71Sopenharmony_ciOpenHarmony SDK 4.1.6.3 28e41f4b71Sopenharmony_ci 29e41f4b71Sopenharmony_ci**Key API/Component Changes** 30e41f4b71Sopenharmony_ci 31e41f4b71Sopenharmony_ci\<Tabs> 32e41f4b71Sopenharmony_ci 33e41f4b71Sopenharmony_ci**Adaptation Guide** 34e41f4b71Sopenharmony_ci 35e41f4b71Sopenharmony_ciSince API version 11, if you want to disable the tab switching animation, you must set **animationDuration** to **0**, rather than **null**. 36