多个gestureRecognizer问题

Question

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;
}

Answer 1

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 
   }
}