问题描述

多个gestureRecognizer问题

在parentClass(继承自UIView)中：

[self addGestureRecognizer:_tapGesture]; // _tapGesture is UITapGestureRecognizer with delegate on parentClass

在someClass中：

[_myImageView addGestureRecognizer:_imageViewGestureRecognizer]; // _imageViewGestureRecognizer is UITapGestureRecognizer with delegate on someClass

问题：我每次点击ImageView时，两个手势都会被触发。我只要_imageViewGestureRecognizer 触发。

试过：

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)recognizer shouldReceiveTouch:(UITouch *)touch {   UIView *gestureView = recognizer.view;   CGPoint point = [touch locationInView:gestureView];   UIView *touchedView = [gestureView hitTest:point withEvent:nil];   if ([touchedView isEqual:_imageViewGestureRecognizer]) {     return NO;   }   return YES;}

解决方案

拿到附加手势的view后，判断view的类型，即可相应做出处理

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)recognizer shouldReceiveTouch:(UITouch *)touch {   UIView *gestureView = recognizer.view;　 if ([gestureView isKindOfClass:[UIImageView class]]) {         ///...to do    }}