使用 CGAffineTransform 的 UIView 旋转
我想使用 CGAffineTransform 旋转 UIView，并且我可以使用 CGAffineTransform 旋转视图。
但我想基于滑动手势在手指触摸时平滑旋转 UIView。
因此，就像向右滑动、向左滑动一样，我能够检测到滑动，但是当我从下到右或从下到左滑动时，我无法检测到这些类型的滑动手势......
I want to rotate an UIView using CGAffineTransform and I'm able to rotate View using CGAffineTransform.
But I want to rotate UIView smoothly on finger touch based on swipe gestures.
So like right swipe, left swipe I was able to detect swipe but when I swipe from down to right or from down to left, I'm not able to detect swipe gesture of these types...
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Sanjay 这些是 iPhone 支持的唯一允许的手势
http://developer.apple.com/library/ios/#DOCUMENTATION/UIKit/Reference/UISwipeGestureRecognizer_Class/Reference/Reference.html#//apple_ref/occ/instp /UISwipeGestureRecognizer/direction
所以我认为您正在尝试识别对角滑动手势，但它不起作用。
并且滑动手势还需要最少 numberOfTouchesRequired 。
http://developer.apple.com/library/ios/#DOCUMENTATION/UIKit/Reference/UISwipeGestureRecognizer_Class/Reference/Reference.html#//apple_ref/occ/cl/UISwipeGestureRecognizer
如果你想旋转UIView 对象比我认为您会在此链接中找到代码
在触摸时旋转视图希望
这有帮助。
Sanjay these are the only allowable gestures that a iPhone supports
http://developer.apple.com/library/ios/#DOCUMENTATION/UIKit/Reference/UISwipeGestureRecognizer_Class/Reference/Reference.html#//apple_ref/occ/instp/UISwipeGestureRecognizer/direction
so I think you are trying to recognize a diagonal swipe gesture and the its not working.
and also there is a minimum numberOfTouchesRequired required for swipe gesture.
http://developer.apple.com/library/ios/#DOCUMENTATION/UIKit/Reference/UISwipeGestureRecognizer_Class/Reference/Reference.html#//apple_ref/occ/cl/UISwipeGestureRecognizer
And if you want to rotate a UIView object than I think you will find the code in this link
rotating a view on touch
Hope this helps.