How to add various kinds of UIGesturesRecognizer to your view?

       UIRotationGestureRecognizer *rotationGesture = [[UIRotationGestureRecognizer alloc] initWithTarget:self action:@selector(rotate:)];

    [piece addGestureRecognizer:rotationGesture];

    [rotationGesture release];

    

    UIPinchGestureRecognizer *pinchGesture = [[UIPinchGestureRecognizer alloc] initWithTarget:self action:@selector(scale:)];

    [pinchGesture setDelegate:self];

    [piece addGestureRecognizer:pinchGesture];

    [pinchGesture release];

    

    UIPanGestureRecognizer *panGesture = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(pan:)];

    [panGesture setDelegate:self];

    [piece addGestureRecognizer:panGesture];

    [panGesture release];

    

    UILongPressGestureRecognizer *longPressGesture = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(longPress:)];

    [piece addGestureRecognizer:longPressGesture];

    [longPressGesture release];

For more details..you can refer to Apple' Sample code called Touches.


Note: Writing blog after so long.. I was so busy travelling... hardly had any time on hand.. but now its getting better, I will have more time on hand to blog.