在uiscrollview中处理触摸事件

Question

I have a UIScrollView and an UIImageView as its subview. I want to draw on the imageview in response to the single touches. And I want to zoom and pan the image view in the scroll view on pinch and pan gestures respectively. I found many solutions. But its not perfect. Please give me a straight forward solution.

Answer 1

在将UIScrollview子类化后使用。请参阅链接 。如果您正在为iphone4 OS做应用程序，请尝试使用UIGestureRecogniser。请在Apple网站中查看其示例代码。

Answer 2

If you are only using the scrollview for panning and zooming, I would suggest subclassing UIImageView to provide that functionality yourself along with the drawing. This will allow you to have finer control over it and quicker code. A scrollview is not very good at allowing complex gestures within it. (other than taps)