程序包 ohos.aafwk.ability

接口 IDataAbilityObserver

public interface IDataAbilityObserver

Registers an observer for monitoring specified data.

IDataAbilityObserver provides a callback method onChange(). After you implement this interface and override the callback method, you can call the DataAbilityHelper#registerObserver(Uri, IDataAbilityObserver) method to register an observer for data monitoring. The onChange() method will be called if data matching the given Uri changes.

从以下版本开始:

1

另请参阅:

DataAbilityHelper

SystemCapability

SystemCapability.Aafwk#ABILITY

方法概要

限定符和类型	方法	说明
void	onChange()	Called back to notify that the data being observed has changed.

方法详细资料

onChange

void onChange()

Called back to notify that the data being observed has changed. You need to override this method in the class implementing IDataAbilityObserver.

从以下版本开始:

1