Как вращать imageview передвижением?

ImageView.setOnTouchListener(new View.OnTouchListener() {
				@Override
				public boolean onTouch(View view, MotionEvent event) {
					switch (event.getAction()) {

						case MotionEvent.ACTION_DOWN:
							dX = view.getX() - event.getRawX();
							dY = view.getY() - event.getRawY();
							break;

						case MotionEvent.ACTION_MOVE:
							view.animate()
								.x(event.getRawX() + dX)
								.y(event.getRawY() + dY)
								.setDuration(0)
								.start();                     
							break;
						case MotionEvent.ACTION_UP:
							break;
						default:
							return false;
					}
					return true;
				}
			});