public DragNDropLayout(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
mContext = context;
mDragController = new DragController(context);
mDragController.setDragListener(this);
mScaleFactor = 1.0f;
scaleDetector = new ScaleGestureDetector(context, new ScaleListener());
detector = new GestureDetector(context, new FlingListener());
}
