按下按钮时忽略UIGestureRecognizer

Question

我设置了一个手势识别器，以便在点击屏幕时我的工具栏向下滑动。当我点击栏上的一个按钮时，就算是点击了。如何在这些情况下取消手势？

谢谢

Answer 1

您可以看看SimpleGestureRecognizers示例项目。

http://developer.apple.com/library/ios/#samplecode/SimpleGestureRecognizers/Introduction/Intro.html

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch { 

    // Disallow recognition of tap gestures in the button. 
    if ((touch.view == button) && (gestureRecognizer == tapRecognizer)) { 
     return NO; 
    } 
    return YES; 
} 

Answer 2

在夫特：

func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer, shouldReceive touch: UITouch) -> Bool { 
    if touch.view is UIButton { 
     return false 
    } 
    return true 
}