沧海一粟

摘要： frame和bounds是UIView中的两个属性(property)。frame指的是：该view在父view坐标系统中的位置和大小。（参照点是父亲的坐标系统）bounds指的是：该view在本身坐标系统中 的位置和大小。（参照点是本身坐标系统）-(CGRect)frame{ return CGRectMake(self.frame.origin.x,self.frame.origin.y,self.frame.size.width,self.frame.size.height);}-(CGRect)bounds{ return CGRectMake(0,0,self.frame.siz.. 阅读全文

摘要： UIGestureRecognizerState的定义如下typedef enum { UIGestureRecognizerStatePossible, UIGestureRecognizerStateBegan, UIGestureRecognizerStateChanged, UIGestureRecognizerStateEnded, UIGestureRecognizerStateCancelled, UIGestureRecognizerStateFailed, UIGestureRecognizerStateRecognize... 阅读全文