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我正在开发一个应用程序，它将在摇动时锁定屏幕，它由一个主要活动组成，该活动有两个按钮来启动和停止应用程序。之后，它进入广播接收器，该接收器正在检查屏幕是打开还是关闭，然后重定向到服务。对于前 3 或 4 次摇动锁定并解锁其工作完美，然后无限期执行。

我正在使用的广播接收器是..

 public void onReceive(Context context, Intent intent) {

        System.out.println("Entered Broadcaste Reciever");

        if (intent.getAction().equals(Intent.ACTION_SCREEN_OFF)) {
            // DO WHATEVER YOU NEED TO DO HERE

            wasScreenOn = "1";
           System.out.println("Check"+"Screen went OFF");
            Intent i = new Intent(context, UpdateService.class);
            i.putExtra("screenstate", wasScreenOn);
            context.startService(i);
            System.out.println("jrkejhr keh");

        }
        else if (intent.getAction().equals(Intent.ACTION_SCREEN_ON)) {
            // AND DO WHATEVER YOU NEED TO DO HERE

            wasScreenOn = "2";
            Log.i("Check","Screen went ONN");
            System.out.println("Entering to the service.................");
            Intent ScreenOnIntent = new Intent(context,UpdateService.class); 
            ScreenOnIntent.putExtra("screenstate", wasScreenOn);
            context.startService(ScreenOnIntent);  

        }

    }

服务是......

         public void onStart(Intent intent, int startId) {
             System.out.println("Entered On Start");    


             data=intent.getStringExtra("screenstate");
             System.out.println("Data from Broadcast Receiver is"+data);
              mShaker = new ShakeListener(this);
                mShaker.setOnShakeListener(new ShakeListener.OnShakeListener () {
                  public void onShake()
                  {
             if(data.equals("1"))
             {
                 System.out.println(".............................................");


                PowerManager TempPowerManager = (PowerManager) getSystemService(Context.POWER_SERVICE);
                PowerManager.WakeLock TempWakeLock = TempPowerManager.newWakeLock(PowerManager.FULL_WAKE_LOCK | PowerManager.ACQUIRE_CAUSES_WAKEUP |PowerManager.ON_AFTER_RELEASE, "TempWakeLock");
                TempWakeLock.acquire();
                final Vibrator vibe = (Vibrator)getSystemService(Context.VIBRATOR_SERVICE);
                vibe.vibrate(100);

             }

              else
             {  
                  final Vibrator vibe = (Vibrator)getSystemService(Context.VIBRATOR_SERVICE);
                    mDPM = (DevicePolicyManager)getSystemService(Context.DEVICE_POLICY_SERVICE);

                            System.out.println("The screen is off and is shaking.........");

                             vibe.vibrate(100);

                            IntentFilter filter = new IntentFilter(Intent.ACTION_SCREEN_ON); 
                            filter.addAction(Intent.ACTION_SCREEN_OFF);
                            BroadcastReceiver mReceiver = new ScreenReceiver();
                            registerReceiver(mReceiver, filter);

                            ComponentName mAdminName = new ComponentName(UpdateService.this,LockActivity.class);

                                System.out.println("The Device  device admin enabled");
                               Intent  intent = new Intent(DevicePolicyManager.ACTION_ADD_DEVICE_ADMIN);
                                intent.putExtra(DevicePolicyManager.EXTRA_DEVICE_ADMIN, mAdminName);
                                  intent.putExtra(DevicePolicyManager.EXTRA_ADD_EXPLANATION,"onEnabled");
                                mDPM.lockNow();
                                mDPM.setMaximumTimeToLock(mAdminName,0);
                                  intent.putExtra("force-locked", DeviceAdminInfo.USES_POLICY_FORCE_LOCK);

   //                                       startActivityForResult(intent, 1); 
                        }

                  }
                });
         }

我只想执行一次..如果屏幕打开执行一次并关闭屏幕，反之亦然..

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