Question

大家好我是Android界的新手，我想在屏幕熄灭时杀死应用程序，我的意思是如果屏幕超时或按下锁定按钮。我已经尝试过这种方法，但它对我不起作用，因为我知道我在 MainActivity

上onCreate方法的开头调用它

private void registerBroadcastReceiver() {

    final IntentFilter theFilter = new IntentFilter();
    /** System Defined Broadcast */
    theFilter.addAction(Intent.ACTION_SCREEN_ON);
    theFilter.addAction(Intent.ACTION_SCREEN_OFF);
    theFilter.addAction(Intent.ACTION_USER_PRESENT);

    BroadcastReceiver screenOnOffReceiver = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
            String strAction = intent.getAction();

            KeyguardManager myKM = (KeyguardManager) context.getSystemService(Context.KEYGUARD_SERVICE);
            assert strAction != null;
            if(strAction.equals(Intent.ACTION_USER_PRESENT) || strAction.equals(Intent.ACTION_SCREEN_OFF) || strAction.equals(Intent.ACTION_SCREEN_ON)  ) {
                assert myKM != null;
                if( myKM.inKeyguardRestrictedInputMode())
                {
                    int pid = android.os.Process.myPid();
                    android.os.Process.killProcess(pid);;
                } else
                {
                    int pid = android.os.Process.myPid();
                    android.os.Process.killProcess(pid);
                }
            }

        }
    };

    getApplicationContext().registerReceiver(screenOnOffReceiver, theFilter);
}

不幸的是，这对我不起作用。

Answer 1

你可以尝试

创建一个ScreenOnOffReceiver类＆amp;粘贴波纹管代码

public class ScreenOnOffReceiver extends BroadcastReceiver{

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

   if (intent.getAction().equals(Intent.ACTION_SCREEN_ON))
    {
     //   Log.e("Sleep Time", getTimeForSleep(context)+"");

    }

   if (intent.getAction().equals(Intent.ACTION_SCREEN_OFF))
   {
      // some code
      Log.e("screen-- ", "off");

      try {
        Intent intent1 = new Intent(context, MainActivity.class);
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
        context.startActivity(intent);
        ((Activity)context).finish();

      //  sleepTime = getTimeForSleep(context);

        } catch (Exception e) {
         // TODO: handle exception
      }


    }

  }

 }

在MainActivity中添加以下代码...

  ScreenOnOffReceiver sonoff;
    try {
       //Log.e("Error Welcome :","Welcome Begin");
       sonoff = new ScreenOnOffReceiver();
       IntentFilter intentFilter = new IntentFilter();
       intentFilter.addAction(Intent.ACTION_SCREEN_ON);
       intentFilter.addAction(Intent.ACTION_SCREEN_OFF);
        registerReceiver(sonoff, intentFilter);
       //Log.e("Screen On Off ", "Started" );
     } catch (Exception e) {
       //Log.e("Error Welcome :", e.toString());
   }

在AndroidManifest.xml中添加Bellow代码

   <receiver android:name=".ScreenOnOffReceiver">
        <intent-filter>
          <action android:name="android.intent.action.SCREEN_ON" />
          <action android:name="android.intent.action.SCREEN_OFF" />
        </intent-filter>
    </receiver>

我认为你的问题将会得到解决。提前谢谢...... Enamul

屏幕熄灭时杀死应用程序

1 个答案: