Android判断屏幕开关状态

PowerManager pm= (PowerManager) mContext.getSystemService(Context.POWER_SERVICE);

if(!pm.isScreenOn())
{
//熄屏状态
}

public class ScreenReceiver extends BroadcastReceiver {

@Override
public void onReceive(Context context, Intent intent) {

if (intent.getAction().equals(Intent.ACTION_SCREEN_OFF)) {

//收到亮屏广播

} else if (intent.getAction().equals(Intent.ACTION_SCREEN_ON)) {

//收到熄屏广播

}

}
}

//注册广播
ScreenReceiver sOnBroadcastReciver=new ScreenReceiver();
IntentFilter recevierFilter=new IntentFilter();
recevierFilter.addAction(Intent.ACTION_SCREEN_ON);
recevierFilter.addAction(Intent.ACTION_SCREEN_OFF);
registerReceiver(sOnBroadcastReciver, recevierFilter);

//取消注册
if(sOnBroadcastReciver!=null)
{
unregisterReceiver(sOnBroadcastReciver);
}