Android判断屏幕开关状态
方法一:使用系统服务
PowerManager pm= (PowerManager) mContext.getSystemService(Context.POWER_SERVICE); if(!pm.isScreenOn()) { //熄屏状态 }
方法二:使用广播
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); }
注意:亮屏和熄屏广播只能通过动态注册才能收到。
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