Android wear device vibrator is not vibrating programmatically all the time












0














I'm developing for a Huawei watch 2. When an alarm sms arrives, the watch should switch to the AlertScreen, and start vibrating. It works like 99% of the time, but sometimes the vibrating is not happening. I've already refactored the code a lot of times, but can't figure out where the bug is.



MainActivity



I'm registering a listener for receiving the SMS, and then calling the startAlert function to start the vibrating:



public class MainActivity extends FragmentActivity {

private final FragmentManager supportFragmentManager = getSupportFragmentManager();
private final SmsBroadcastReceiver smsBroadcastReceiver = new SmsBroadcastReceiver();
private final AlertFragment alertFragment = new AlertFragment();
private static final String SENDER_PHONE_NUMBER = MyApplication.getAppContext().getResources().getString(R.string.sender_phone);

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
supportFragmentManager.beginTransaction().replace(R.id.fragment_container, new MainFragment()).commit();

registerReceiver(smsBroadcastReceiver, new IntentFilter(Telephony.Sms.Intents.SMS_RECEIVED_ACTION));
smsBroadcastReceiver.setListener(new SmsListener() {
@Override
public void messageReceived(final String phoneNumber) {
startAlert(phoneNumber);
}
});
}

private void startAlert(final String phoneNumber) {
Handler handler = new Handler();
handler.postDelayed(new Runnable() {
@Override
public void run() {
if (alertFragment.isRunning || phoneNumber.equals(SENDER_PHONE_NUMBER)) {
supportFragmentManager.beginTransaction().replace(R.id.fragment_container, alertFragment).commitAllowingStateLoss();
alertFragment.startAlert(phoneNumber);
}
}
}, 4000);
}
}


AlertFragment:



In this fragment in the startAlert Im adding a helper class to the executorService, which will start the actual vibrating. The isRunning variable is here, because while running if the watch receives a new message from another number, it usually stopped the vibration.



public class AlertFragment extends Fragment {

private Button cancelButton;
private Future longRunningTaskFuture;
private ConnectionService mService;
private PowerManager powerManager;
private FragmentManager supportFragmentManager;
private PowerManager.WakeLock wakeLock;
AlertHelper longRunningTask = new AlertHelper();
public boolean isRunning = false;
private boolean mBound = false;
private final String TYPE = "feedback";
private static final String SENDER_PHONE_NUMBER = MyApplication.getAppContext().getResources().getString(R.string.sender_phone);
private View.OnClickListener onAlertButtonPressedListener = new View.OnClickListener() {
@Override
public void onClick(View v) {
mService.sendMessage(new Message(TYPE, "1").toJson());
supportFragmentManager.beginTransaction().replace(R.id.fragment_container, new MainFragment()).commit();
stopAlert();
}
};

@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}

@Override
public void onStart() {
super.onStart();
supportFragmentManager = getActivity().getSupportFragmentManager();
}

@Override
public void onAttach(Context context) {
super.onAttach(context);
wakeUpWatch();
Intent intent = new Intent(context, ConnectionService.class);
context.bindService(intent, mConnection, Context.BIND_AUTO_CREATE);
}

@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.alert_fragment, container, false);
if (view != null) {
cancelButton = (Button) view.findViewById(R.id.stop_button);
cancelButton.setOnClickListener(onAlertButtonPressedListener);
}
((DrawerLock) getActivity()).setDrawerLocked(true);
return view;
}

@Override
public void onSaveInstanceState(Bundle outState) {
//No call for super(). Bug on API Level > 11.
}

@Override
public void onDestroyView() {
super.onDestroyView();
((DrawerLock) getActivity()).setDrawerLocked(false);
}

public void startAlert(String phoneNumber) {
ExecutorService executorService = Executors.newSingleThreadExecutor();
// submit task to threadpool:
if (isRunning || phoneNumber.equals(SENDER_PHONE_NUMBER)) {
longRunningTaskFuture = executorService.submit(longRunningTask);
isRunning = true;
}
}

public void stopAlert() {
longRunningTaskFuture.cancel(true);
longRunningTaskFuture = null;
isRunning = false;
longRunningTask.vibrator.cancel();
releaseWakeLock();
}

private void wakeUpWatch() {
Intent intent = new Intent(getActivity().getApplicationContext(), MainActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); // You need this if starting
// the activity from a service
intent.setAction(Intent.ACTION_MAIN);
intent.addCategory(Intent.CATEGORY_LAUNCHER);
startActivity(intent);
powerManager = (PowerManager) MyApplication.getAppContext().getSystemService(POWER_SERVICE);
wakeLock = powerManager.newWakeLock(PowerManager.ACQUIRE_CAUSES_WAKEUP | PowerManager.SCREEN_BRIGHT_WAKE_LOCK,"MyWakelockTag");
wakeLock.acquire();
}

private void releaseWakeLock() {
if (wakeLock != null && wakeLock.isHeld()) {
wakeLock.release();
}
}

private ServiceConnection mConnection = new ServiceConnection() {

@Override
public void onServiceConnected(ComponentName className,
IBinder service) {
ConnectionService.LocalBinder binder = (ConnectionService.LocalBinder) service;
mService = binder.getServiceInstance();
mBound = true;
}

@Override
public void onServiceDisconnected(ComponentName arg0) {
mBound = false;
}
};
}


And finally, the AlertHelper class will actually start the vibration:



public class AlertHelper implements Runnable {

Vibrator vibrator = (Vibrator) MyApplication.getAppContext().getSystemService(Context.VIBRATOR_SERVICE);
public volatile boolean isRunning;
private final long mVibratePattern = new long{0, 400, 800, 600, 800, 800, 800, 1000};
private final int mAmplitudes = new int{0, 255, 0, 255, 0, 255, 0, 255};

@Override
public void run() {
this.isRunning = true;
if (this.vibrator != null) {
this.vibrator.vibrate(VibrationEffect.createWaveform(mVibratePattern, mAmplitudes, 0));
}
}
}


So i have no idea, the vibration usually works as it should, but sometimes it just don't. I always had this bug with every implementation, so I'm starting to think that it could be a bug I'm not aware of. What could be the solution here?



EDIT:



The bug is not in the MainActivity, since the screen is always changing as it should, so the problem must be with the alert classes










share|improve this question





























    0














    I'm developing for a Huawei watch 2. When an alarm sms arrives, the watch should switch to the AlertScreen, and start vibrating. It works like 99% of the time, but sometimes the vibrating is not happening. I've already refactored the code a lot of times, but can't figure out where the bug is.



    MainActivity



    I'm registering a listener for receiving the SMS, and then calling the startAlert function to start the vibrating:



    public class MainActivity extends FragmentActivity {

    private final FragmentManager supportFragmentManager = getSupportFragmentManager();
    private final SmsBroadcastReceiver smsBroadcastReceiver = new SmsBroadcastReceiver();
    private final AlertFragment alertFragment = new AlertFragment();
    private static final String SENDER_PHONE_NUMBER = MyApplication.getAppContext().getResources().getString(R.string.sender_phone);

    @Override
    protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    supportFragmentManager.beginTransaction().replace(R.id.fragment_container, new MainFragment()).commit();

    registerReceiver(smsBroadcastReceiver, new IntentFilter(Telephony.Sms.Intents.SMS_RECEIVED_ACTION));
    smsBroadcastReceiver.setListener(new SmsListener() {
    @Override
    public void messageReceived(final String phoneNumber) {
    startAlert(phoneNumber);
    }
    });
    }

    private void startAlert(final String phoneNumber) {
    Handler handler = new Handler();
    handler.postDelayed(new Runnable() {
    @Override
    public void run() {
    if (alertFragment.isRunning || phoneNumber.equals(SENDER_PHONE_NUMBER)) {
    supportFragmentManager.beginTransaction().replace(R.id.fragment_container, alertFragment).commitAllowingStateLoss();
    alertFragment.startAlert(phoneNumber);
    }
    }
    }, 4000);
    }
    }


    AlertFragment:



    In this fragment in the startAlert Im adding a helper class to the executorService, which will start the actual vibrating. The isRunning variable is here, because while running if the watch receives a new message from another number, it usually stopped the vibration.



    public class AlertFragment extends Fragment {

    private Button cancelButton;
    private Future longRunningTaskFuture;
    private ConnectionService mService;
    private PowerManager powerManager;
    private FragmentManager supportFragmentManager;
    private PowerManager.WakeLock wakeLock;
    AlertHelper longRunningTask = new AlertHelper();
    public boolean isRunning = false;
    private boolean mBound = false;
    private final String TYPE = "feedback";
    private static final String SENDER_PHONE_NUMBER = MyApplication.getAppContext().getResources().getString(R.string.sender_phone);
    private View.OnClickListener onAlertButtonPressedListener = new View.OnClickListener() {
    @Override
    public void onClick(View v) {
    mService.sendMessage(new Message(TYPE, "1").toJson());
    supportFragmentManager.beginTransaction().replace(R.id.fragment_container, new MainFragment()).commit();
    stopAlert();
    }
    };

    @Override
    public void onCreate(@Nullable Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    }

    @Override
    public void onStart() {
    super.onStart();
    supportFragmentManager = getActivity().getSupportFragmentManager();
    }

    @Override
    public void onAttach(Context context) {
    super.onAttach(context);
    wakeUpWatch();
    Intent intent = new Intent(context, ConnectionService.class);
    context.bindService(intent, mConnection, Context.BIND_AUTO_CREATE);
    }

    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.alert_fragment, container, false);
    if (view != null) {
    cancelButton = (Button) view.findViewById(R.id.stop_button);
    cancelButton.setOnClickListener(onAlertButtonPressedListener);
    }
    ((DrawerLock) getActivity()).setDrawerLocked(true);
    return view;
    }

    @Override
    public void onSaveInstanceState(Bundle outState) {
    //No call for super(). Bug on API Level > 11.
    }

    @Override
    public void onDestroyView() {
    super.onDestroyView();
    ((DrawerLock) getActivity()).setDrawerLocked(false);
    }

    public void startAlert(String phoneNumber) {
    ExecutorService executorService = Executors.newSingleThreadExecutor();
    // submit task to threadpool:
    if (isRunning || phoneNumber.equals(SENDER_PHONE_NUMBER)) {
    longRunningTaskFuture = executorService.submit(longRunningTask);
    isRunning = true;
    }
    }

    public void stopAlert() {
    longRunningTaskFuture.cancel(true);
    longRunningTaskFuture = null;
    isRunning = false;
    longRunningTask.vibrator.cancel();
    releaseWakeLock();
    }

    private void wakeUpWatch() {
    Intent intent = new Intent(getActivity().getApplicationContext(), MainActivity.class);
    intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); // You need this if starting
    // the activity from a service
    intent.setAction(Intent.ACTION_MAIN);
    intent.addCategory(Intent.CATEGORY_LAUNCHER);
    startActivity(intent);
    powerManager = (PowerManager) MyApplication.getAppContext().getSystemService(POWER_SERVICE);
    wakeLock = powerManager.newWakeLock(PowerManager.ACQUIRE_CAUSES_WAKEUP | PowerManager.SCREEN_BRIGHT_WAKE_LOCK,"MyWakelockTag");
    wakeLock.acquire();
    }

    private void releaseWakeLock() {
    if (wakeLock != null && wakeLock.isHeld()) {
    wakeLock.release();
    }
    }

    private ServiceConnection mConnection = new ServiceConnection() {

    @Override
    public void onServiceConnected(ComponentName className,
    IBinder service) {
    ConnectionService.LocalBinder binder = (ConnectionService.LocalBinder) service;
    mService = binder.getServiceInstance();
    mBound = true;
    }

    @Override
    public void onServiceDisconnected(ComponentName arg0) {
    mBound = false;
    }
    };
    }


    And finally, the AlertHelper class will actually start the vibration:



    public class AlertHelper implements Runnable {

    Vibrator vibrator = (Vibrator) MyApplication.getAppContext().getSystemService(Context.VIBRATOR_SERVICE);
    public volatile boolean isRunning;
    private final long mVibratePattern = new long{0, 400, 800, 600, 800, 800, 800, 1000};
    private final int mAmplitudes = new int{0, 255, 0, 255, 0, 255, 0, 255};

    @Override
    public void run() {
    this.isRunning = true;
    if (this.vibrator != null) {
    this.vibrator.vibrate(VibrationEffect.createWaveform(mVibratePattern, mAmplitudes, 0));
    }
    }
    }


    So i have no idea, the vibration usually works as it should, but sometimes it just don't. I always had this bug with every implementation, so I'm starting to think that it could be a bug I'm not aware of. What could be the solution here?



    EDIT:



    The bug is not in the MainActivity, since the screen is always changing as it should, so the problem must be with the alert classes










    share|improve this question



























      0












      0








      0







      I'm developing for a Huawei watch 2. When an alarm sms arrives, the watch should switch to the AlertScreen, and start vibrating. It works like 99% of the time, but sometimes the vibrating is not happening. I've already refactored the code a lot of times, but can't figure out where the bug is.



      MainActivity



      I'm registering a listener for receiving the SMS, and then calling the startAlert function to start the vibrating:



      public class MainActivity extends FragmentActivity {

      private final FragmentManager supportFragmentManager = getSupportFragmentManager();
      private final SmsBroadcastReceiver smsBroadcastReceiver = new SmsBroadcastReceiver();
      private final AlertFragment alertFragment = new AlertFragment();
      private static final String SENDER_PHONE_NUMBER = MyApplication.getAppContext().getResources().getString(R.string.sender_phone);

      @Override
      protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.activity_main);
      supportFragmentManager.beginTransaction().replace(R.id.fragment_container, new MainFragment()).commit();

      registerReceiver(smsBroadcastReceiver, new IntentFilter(Telephony.Sms.Intents.SMS_RECEIVED_ACTION));
      smsBroadcastReceiver.setListener(new SmsListener() {
      @Override
      public void messageReceived(final String phoneNumber) {
      startAlert(phoneNumber);
      }
      });
      }

      private void startAlert(final String phoneNumber) {
      Handler handler = new Handler();
      handler.postDelayed(new Runnable() {
      @Override
      public void run() {
      if (alertFragment.isRunning || phoneNumber.equals(SENDER_PHONE_NUMBER)) {
      supportFragmentManager.beginTransaction().replace(R.id.fragment_container, alertFragment).commitAllowingStateLoss();
      alertFragment.startAlert(phoneNumber);
      }
      }
      }, 4000);
      }
      }


      AlertFragment:



      In this fragment in the startAlert Im adding a helper class to the executorService, which will start the actual vibrating. The isRunning variable is here, because while running if the watch receives a new message from another number, it usually stopped the vibration.



      public class AlertFragment extends Fragment {

      private Button cancelButton;
      private Future longRunningTaskFuture;
      private ConnectionService mService;
      private PowerManager powerManager;
      private FragmentManager supportFragmentManager;
      private PowerManager.WakeLock wakeLock;
      AlertHelper longRunningTask = new AlertHelper();
      public boolean isRunning = false;
      private boolean mBound = false;
      private final String TYPE = "feedback";
      private static final String SENDER_PHONE_NUMBER = MyApplication.getAppContext().getResources().getString(R.string.sender_phone);
      private View.OnClickListener onAlertButtonPressedListener = new View.OnClickListener() {
      @Override
      public void onClick(View v) {
      mService.sendMessage(new Message(TYPE, "1").toJson());
      supportFragmentManager.beginTransaction().replace(R.id.fragment_container, new MainFragment()).commit();
      stopAlert();
      }
      };

      @Override
      public void onCreate(@Nullable Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      }

      @Override
      public void onStart() {
      super.onStart();
      supportFragmentManager = getActivity().getSupportFragmentManager();
      }

      @Override
      public void onAttach(Context context) {
      super.onAttach(context);
      wakeUpWatch();
      Intent intent = new Intent(context, ConnectionService.class);
      context.bindService(intent, mConnection, Context.BIND_AUTO_CREATE);
      }

      @Nullable
      @Override
      public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
      View view = inflater.inflate(R.layout.alert_fragment, container, false);
      if (view != null) {
      cancelButton = (Button) view.findViewById(R.id.stop_button);
      cancelButton.setOnClickListener(onAlertButtonPressedListener);
      }
      ((DrawerLock) getActivity()).setDrawerLocked(true);
      return view;
      }

      @Override
      public void onSaveInstanceState(Bundle outState) {
      //No call for super(). Bug on API Level > 11.
      }

      @Override
      public void onDestroyView() {
      super.onDestroyView();
      ((DrawerLock) getActivity()).setDrawerLocked(false);
      }

      public void startAlert(String phoneNumber) {
      ExecutorService executorService = Executors.newSingleThreadExecutor();
      // submit task to threadpool:
      if (isRunning || phoneNumber.equals(SENDER_PHONE_NUMBER)) {
      longRunningTaskFuture = executorService.submit(longRunningTask);
      isRunning = true;
      }
      }

      public void stopAlert() {
      longRunningTaskFuture.cancel(true);
      longRunningTaskFuture = null;
      isRunning = false;
      longRunningTask.vibrator.cancel();
      releaseWakeLock();
      }

      private void wakeUpWatch() {
      Intent intent = new Intent(getActivity().getApplicationContext(), MainActivity.class);
      intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); // You need this if starting
      // the activity from a service
      intent.setAction(Intent.ACTION_MAIN);
      intent.addCategory(Intent.CATEGORY_LAUNCHER);
      startActivity(intent);
      powerManager = (PowerManager) MyApplication.getAppContext().getSystemService(POWER_SERVICE);
      wakeLock = powerManager.newWakeLock(PowerManager.ACQUIRE_CAUSES_WAKEUP | PowerManager.SCREEN_BRIGHT_WAKE_LOCK,"MyWakelockTag");
      wakeLock.acquire();
      }

      private void releaseWakeLock() {
      if (wakeLock != null && wakeLock.isHeld()) {
      wakeLock.release();
      }
      }

      private ServiceConnection mConnection = new ServiceConnection() {

      @Override
      public void onServiceConnected(ComponentName className,
      IBinder service) {
      ConnectionService.LocalBinder binder = (ConnectionService.LocalBinder) service;
      mService = binder.getServiceInstance();
      mBound = true;
      }

      @Override
      public void onServiceDisconnected(ComponentName arg0) {
      mBound = false;
      }
      };
      }


      And finally, the AlertHelper class will actually start the vibration:



      public class AlertHelper implements Runnable {

      Vibrator vibrator = (Vibrator) MyApplication.getAppContext().getSystemService(Context.VIBRATOR_SERVICE);
      public volatile boolean isRunning;
      private final long mVibratePattern = new long{0, 400, 800, 600, 800, 800, 800, 1000};
      private final int mAmplitudes = new int{0, 255, 0, 255, 0, 255, 0, 255};

      @Override
      public void run() {
      this.isRunning = true;
      if (this.vibrator != null) {
      this.vibrator.vibrate(VibrationEffect.createWaveform(mVibratePattern, mAmplitudes, 0));
      }
      }
      }


      So i have no idea, the vibration usually works as it should, but sometimes it just don't. I always had this bug with every implementation, so I'm starting to think that it could be a bug I'm not aware of. What could be the solution here?



      EDIT:



      The bug is not in the MainActivity, since the screen is always changing as it should, so the problem must be with the alert classes










      share|improve this question















      I'm developing for a Huawei watch 2. When an alarm sms arrives, the watch should switch to the AlertScreen, and start vibrating. It works like 99% of the time, but sometimes the vibrating is not happening. I've already refactored the code a lot of times, but can't figure out where the bug is.



      MainActivity



      I'm registering a listener for receiving the SMS, and then calling the startAlert function to start the vibrating:



      public class MainActivity extends FragmentActivity {

      private final FragmentManager supportFragmentManager = getSupportFragmentManager();
      private final SmsBroadcastReceiver smsBroadcastReceiver = new SmsBroadcastReceiver();
      private final AlertFragment alertFragment = new AlertFragment();
      private static final String SENDER_PHONE_NUMBER = MyApplication.getAppContext().getResources().getString(R.string.sender_phone);

      @Override
      protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.activity_main);
      supportFragmentManager.beginTransaction().replace(R.id.fragment_container, new MainFragment()).commit();

      registerReceiver(smsBroadcastReceiver, new IntentFilter(Telephony.Sms.Intents.SMS_RECEIVED_ACTION));
      smsBroadcastReceiver.setListener(new SmsListener() {
      @Override
      public void messageReceived(final String phoneNumber) {
      startAlert(phoneNumber);
      }
      });
      }

      private void startAlert(final String phoneNumber) {
      Handler handler = new Handler();
      handler.postDelayed(new Runnable() {
      @Override
      public void run() {
      if (alertFragment.isRunning || phoneNumber.equals(SENDER_PHONE_NUMBER)) {
      supportFragmentManager.beginTransaction().replace(R.id.fragment_container, alertFragment).commitAllowingStateLoss();
      alertFragment.startAlert(phoneNumber);
      }
      }
      }, 4000);
      }
      }


      AlertFragment:



      In this fragment in the startAlert Im adding a helper class to the executorService, which will start the actual vibrating. The isRunning variable is here, because while running if the watch receives a new message from another number, it usually stopped the vibration.



      public class AlertFragment extends Fragment {

      private Button cancelButton;
      private Future longRunningTaskFuture;
      private ConnectionService mService;
      private PowerManager powerManager;
      private FragmentManager supportFragmentManager;
      private PowerManager.WakeLock wakeLock;
      AlertHelper longRunningTask = new AlertHelper();
      public boolean isRunning = false;
      private boolean mBound = false;
      private final String TYPE = "feedback";
      private static final String SENDER_PHONE_NUMBER = MyApplication.getAppContext().getResources().getString(R.string.sender_phone);
      private View.OnClickListener onAlertButtonPressedListener = new View.OnClickListener() {
      @Override
      public void onClick(View v) {
      mService.sendMessage(new Message(TYPE, "1").toJson());
      supportFragmentManager.beginTransaction().replace(R.id.fragment_container, new MainFragment()).commit();
      stopAlert();
      }
      };

      @Override
      public void onCreate(@Nullable Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      }

      @Override
      public void onStart() {
      super.onStart();
      supportFragmentManager = getActivity().getSupportFragmentManager();
      }

      @Override
      public void onAttach(Context context) {
      super.onAttach(context);
      wakeUpWatch();
      Intent intent = new Intent(context, ConnectionService.class);
      context.bindService(intent, mConnection, Context.BIND_AUTO_CREATE);
      }

      @Nullable
      @Override
      public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
      View view = inflater.inflate(R.layout.alert_fragment, container, false);
      if (view != null) {
      cancelButton = (Button) view.findViewById(R.id.stop_button);
      cancelButton.setOnClickListener(onAlertButtonPressedListener);
      }
      ((DrawerLock) getActivity()).setDrawerLocked(true);
      return view;
      }

      @Override
      public void onSaveInstanceState(Bundle outState) {
      //No call for super(). Bug on API Level > 11.
      }

      @Override
      public void onDestroyView() {
      super.onDestroyView();
      ((DrawerLock) getActivity()).setDrawerLocked(false);
      }

      public void startAlert(String phoneNumber) {
      ExecutorService executorService = Executors.newSingleThreadExecutor();
      // submit task to threadpool:
      if (isRunning || phoneNumber.equals(SENDER_PHONE_NUMBER)) {
      longRunningTaskFuture = executorService.submit(longRunningTask);
      isRunning = true;
      }
      }

      public void stopAlert() {
      longRunningTaskFuture.cancel(true);
      longRunningTaskFuture = null;
      isRunning = false;
      longRunningTask.vibrator.cancel();
      releaseWakeLock();
      }

      private void wakeUpWatch() {
      Intent intent = new Intent(getActivity().getApplicationContext(), MainActivity.class);
      intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); // You need this if starting
      // the activity from a service
      intent.setAction(Intent.ACTION_MAIN);
      intent.addCategory(Intent.CATEGORY_LAUNCHER);
      startActivity(intent);
      powerManager = (PowerManager) MyApplication.getAppContext().getSystemService(POWER_SERVICE);
      wakeLock = powerManager.newWakeLock(PowerManager.ACQUIRE_CAUSES_WAKEUP | PowerManager.SCREEN_BRIGHT_WAKE_LOCK,"MyWakelockTag");
      wakeLock.acquire();
      }

      private void releaseWakeLock() {
      if (wakeLock != null && wakeLock.isHeld()) {
      wakeLock.release();
      }
      }

      private ServiceConnection mConnection = new ServiceConnection() {

      @Override
      public void onServiceConnected(ComponentName className,
      IBinder service) {
      ConnectionService.LocalBinder binder = (ConnectionService.LocalBinder) service;
      mService = binder.getServiceInstance();
      mBound = true;
      }

      @Override
      public void onServiceDisconnected(ComponentName arg0) {
      mBound = false;
      }
      };
      }


      And finally, the AlertHelper class will actually start the vibration:



      public class AlertHelper implements Runnable {

      Vibrator vibrator = (Vibrator) MyApplication.getAppContext().getSystemService(Context.VIBRATOR_SERVICE);
      public volatile boolean isRunning;
      private final long mVibratePattern = new long{0, 400, 800, 600, 800, 800, 800, 1000};
      private final int mAmplitudes = new int{0, 255, 0, 255, 0, 255, 0, 255};

      @Override
      public void run() {
      this.isRunning = true;
      if (this.vibrator != null) {
      this.vibrator.vibrate(VibrationEffect.createWaveform(mVibratePattern, mAmplitudes, 0));
      }
      }
      }


      So i have no idea, the vibration usually works as it should, but sometimes it just don't. I always had this bug with every implementation, so I'm starting to think that it could be a bug I'm not aware of. What could be the solution here?



      EDIT:



      The bug is not in the MainActivity, since the screen is always changing as it should, so the problem must be with the alert classes







      java android wear-os android-vibration






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Nov 23 '18 at 15:48

























      asked Nov 23 '18 at 15:42









      adamb

      129110




      129110
























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