按下按鈕時忽略UIGestureRecognizer

Question

我設置了一個手勢識別器，以便在點擊屏幕時我的工具欄向下滑動。當我點擊欄上的一個按鈕時，就算是點擊了。如何在這些情況下取消手勢？

謝謝

Answer 1

您可以看看SimpleGestureRecognizers示例項目。

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 
}