Adding natural dragging effect to ImageView same as Facebook Messanger chat heads using Rebound library

Question

I am developing one app where I am dragging around my ImageView in Activity. I have configured Facebook Rebound library for spring animation which is originally used in Face

Answer 1

i have used above V class directly in Window-manager and it's work perfectly and chatHead move like facebook messenger.

public class ChatHeadService extends Service
{

    private LayoutInflater inflater;
    private WindowManager windowManager;

    private Point szWindow = new Point();


    @Override
    public void onCreate()
    {
    super.onCreate();
    Log.v(Utils.LogTag, "Start Service");
    }

    private
    void handleStart(){

         windowManager = (WindowManager)getSystemService(WINDOW_SERVICE);
        inflater = (LayoutInflater)getSystemService(LAYOUT_INFLATER_SERVICE);

        if (Build . VERSION . SDK_INT >= Build . VERSION_CODES . HONEYCOMB) {
            windowManager . getDefaultDisplay() . getSize(szWindow);
        } else {
            int w = windowManager . getDefaultDisplay() . getWidth();
            int h = windowManager . getDefaultDisplay() . getHeight();
            szWindow . set(w, h);
        }

        WindowManager . LayoutParams params = new WindowManager . LayoutParams(
            WindowManager . LayoutParams . WRAP_CONTENT,
            WindowManager . LayoutParams . WRAP_CONTENT,
            WindowManager . LayoutParams . TYPE_PHONE,
            WindowManager . LayoutParams . FLAG_NOT_FOCUSABLE |
            WindowManager . LayoutParams . FLAG_WATCH_OUTSIDE_TOUCH |
            WindowManager . LayoutParams . FLAG_LAYOUT_NO_LIMITS,
            PixelFormat . TRANSLUCENT
        );

        params . gravity = Gravity . TOP | Gravity . LEFT;
        params . x       = 50;
        params . y       = 100;

        V vImg = new V(this);

        windowManager . addView(vImg, params);


    }

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        if (intent != null) {
            if (startId == Service . START_STICKY) {
                handleStart();
            }
        }

        return super . onStartCommand(intent, flags, startId);
    }

    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }

    @Override
    public void onDestroy(){
                super . onDestroy();
        if (windowManager != null) {
            // windowManager.removeView(chatHeadView);
        }
    }
}