My Huawei kills my wakelock Android app

Question

I am trying to develop an Android application that uses the phone’s accelerometer. It works everywhere except for a Huawei phone (tested on P9). I checked the "continue to work with black screen" option and protect the application with a battery (battery option).

I do not see a solution, so I ask you :-) This is my activity:

public class MainActivity extends AppCompatActivity { private static final String TAG = "MainActivity"; private MyService mService; private boolean mIsRunning; private MyService.ICallback mCallback = new MyService.ICallback() { public void changed() { Log.i(TAG, "CHANGED"); } }; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); } @Override protected void onResume() { super.onResume(); if(!mIsRunning) { startStepService(); } bindStepService(); } @Override protected void onPause() { super.onPause(); if(mIsRunning && mService != null) { unbindStepService(); } } private ServiceConnection mConnection = new ServiceConnection() { public void onServiceConnected(ComponentName className, IBinder service) { mService = ((MyService.StepBinder)service).getService(); mService.registerCallback(mCallback); } public void onServiceDisconnected(ComponentName className) { mService = null; } }; private void startStepService() { if (! mIsRunning) { mIsRunning = true; startService(new Intent(MainActivity.this, MyService.class)); } } private void bindStepService() { bindService(new Intent(MainActivity.this, MyService.class), mConnection, Context.BIND_AUTO_CREATE); } private void unbindStepService() { unbindService(mConnection); } 

And my service:

 public class MyService extends Service { private static final String TAG = "Test"; private SensorManager mSensorManager; private Detector detector; private MyDisplayer displayer; private PowerManager.WakeLock wakeLock; private ICallback mCallback; private MyDisplayer.Listener mStepListener = new MyDisplayer.Listener() { public void changed() { passValue(); } public void passValue() { if (mCallback != null) { mCallback.changed(); } } }; private final IBinder mBinder = new StepBinder(); public static final int MyID = 1234; android.app.Notification Notification; public class StepBinder extends Binder { public MyService getService() { return MyService.this; } } @Override public void onCreate() { super.onCreate(); acquireWakeLock(); displayer = new MyDisplayer(); displayer.addListener(mStepListener); registerDetector(); startServiceNotification(); } private void registerDetector() { mSensorManager = (SensorManager) getSystemService(SENSOR_SERVICE); detector = new Detector(); detector.addStepListener(displayer); Sensor mSensor = mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER); mSensorManager.registerListener(detector, mSensor, SensorManager.SENSOR_DELAY_GAME); } @Override public IBinder onBind(Intent intent) { return mBinder; } public interface ICallback { void changed(); } public void registerCallback(ICallback cb) { mCallback = cb; } private void startServiceNotification() { NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(this) .setSmallIcon(R.drawable.logo_32) .setContentTitle("Test") .setPriority(Notification.PRIORITY_HIGH) .setContentText("My Notif"); TaskStackBuilder stackBuilder = TaskStackBuilder.create(this); Intent resultIntent = new Intent(this, MainActivity.class); stackBuilder.addNextIntent(resultIntent); PendingIntent resultPendingIntent = stackBuilder.getPendingIntent(0, PendingIntent.FLAG_UPDATE_CURRENT); mBuilder.setContentIntent(resultPendingIntent); startForeground(MyID, mBuilder.build()); } private void acquireWakeLock() { PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE); int wakeFlags = PowerManager.PARTIAL_WAKE_LOCK; wakeLock = pm.newWakeLock(wakeFlags, TAG); wakeLock.acquire(); } @Override public int onStartCommand(Intent intent, int flags, int startId) { return START_STICKY; } 

The listener and detector are useless for this problem, so I do not put them here. Thanks for helping.

Answer 1

Have you tried using the application among secure applications? See the “Protected Applications” setting on Huawei phones and their solutions . Huawei has a special feature that allows users to choose which applications can run in the background. You can ask the user to accept that your application is running in the background. Obviously, however, you can only show the corresponding stetting page and ask them to enable this feature themselves. I also understand that you have no way to find out programmatically if the user has done this.