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Android Threads and Services But Wait There's More! Messengers and Handlers: Service

Navrozbek Akhmedov
Navrozbek Akhmedov
1,106 Points

I couldn't understand task properly, it gives exception `wrong coordinates received`

Give me a bit guide, please?

GeolocationService.java
public class GeolocationService extends Service {
    int mLatitude;
    int mLongitude;
    private Messenger messenger = new Messenger(new LocationHandler(this)); 

    // some methods omitted

    public int getLatitude() {
        return mLatitude;
    }

    public int getLongitude() {
        return mLongitude;
    }

    @Override
    public IBinder onBind(Intent intent) {
      return messenger.getBinder();
    }
    class LocationHandler extends Handler {

        private GeolocationService mGeoService;

        public LocationHandler(GeolocationService service) {
            mGeoService = service;
        }

        @Override
        public void handleMessage(Message msg) {
            switch(msg.arg1) {
                case 0:
                    mGeoService.getLatitude();
                    break;
                case 1:
                    mGeoService.getLongitude();
                    break;
            }
        }
    }
}

This Code will get you through the whole challenge

public class GeolocationService extends Service { int mLatitude; int mLongitude;

private Messenger mMessenger = new Messenger(new LocationHandler()); 

// some methods omitted 

@Override 
public IBinder onBind(Intent intent) { 
  return mMessenger.getBinder(); 
} 

public class LocationHandler extends Handler { 
  @Override 

public void handleMessage(Message message){ 
    mLatitude = getLatitude(); 
    mLongitude = getLongitude();   
  }  
}  

}

1 Answer