android如何监控省电模式
时间: 2023-10-18 20:10:34 浏览: 43
Android提供了PowerManager类来监控省电模式。可以通过注册BroadcastReceiver接收ACTION_POWER_SAVE_MODE_CHANGED广播来监控省电模式的变化。具体的实现步骤如下:
1. 在AndroidManifest.xml文件中声明广播接收器:
```xml
<receiver android:name=".PowerSaveModeReceiver">
<intent-filter>
<action android:name="android.os.action.POWER_SAVE_MODE_CHANGED" />
</intent-filter>
</receiver>
```
2. 创建PowerSaveModeReceiver类来接收广播:
```java
public class PowerSaveModeReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
if (intent.getAction().equals(PowerManager.ACTION_POWER_SAVE_MODE_CHANGED)) {
PowerManager powerManager = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
boolean isPowerSaveMode = powerManager.isPowerSaveMode();
if (isPowerSaveMode) {
// 进入省电模式
} else {
// 退出省电模式
}
}
}
}
```
3. 在Activity或Service中注册广播接收器:
```java
IntentFilter intentFilter = new IntentFilter();
intentFilter.addAction(PowerManager.ACTION_POWER_SAVE_MODE_CHANGED);
registerReceiver(new PowerSaveModeReceiver(), intentFilter);
```
这样就可以实现监控省电模式的功能了。