FloatingViewService.java

case MotionEvent.ACTION_UP:
    int Xdiff = (int) (event.getRawX() - initialTouchX);
    int Ydiff = (int) (event.getRawY() - initialTouchY);

    //The check for Xdiff <10 && YDiff< 10 because sometime elements moves a little while clicking.
    //So that is click event.
    if (Xdiff < 10 && Ydiff < 10) {
        if (isViewCollapsed()) {
            //When user clicks on the image view of the collapsed layout,
            //visibility of the collapsed layout will be changed to "View.GONE"
            //and expanded view will become visible.
            collapsedView.setVisibility(View.GONE);
            expandedView.setVisibility(View.VISIBLE);
        }
    }
    return true;