iPhone - UIGestureRecognizer 3 多次检测

Question

我有 3 个 UIGestureRecognizer 附加到一个视图：一个手指双击，两个手指双击和一个手指三次点击。问题是这样的：当我三次点击时，它会触发应该通过双击触发的方法，然后触发三次点击的方法。

这就是我添加它的方式。

// one finger double tap
doubleTap = [[[UITapGestureRecognizer alloc]
              initWithTarget:self 
              action:@selector(handleDoubleTap:)] autorelease];
[doubleTap setCancelsTouchesInView:YES];
[doubleTap setNumberOfTapsRequired:2];
[doubleTapDoisDedos setNumberOfTouchesRequired:1];
[doubleTap setDelegate:self];
[[[CCDirector sharedDirector] openGLView] addGestureRecognizer:doubleTap];  


// two fingers double tap
twoFingerDoubleTap = [[[UITapGestureRecognizer alloc]
              initWithTarget:self 
              action:@selector(handleDoubleTapTwoFingers:)] autorelease];
[twoFingerDoubleTap setCancelsTouchesInView:YES];
[twoFingerDoubleTap setNumberOfTapsRequired:2];
[twoFingerDoubleTap setNumberOfTouchesRequired:2];
[twoFingerDoubleTap setDelegate:self]; 
[[[CCDirector sharedDirector] openGLView] addGestureRecognizer:twoFingerDoubleTap]; 



// triple tap com um dedo faz as cartas se empilharem
tripleTapOneFinger = [[[UITapGestureRecognizer alloc]
              initWithTarget:self 
              action:@selector(handleTripleTap:)] autorelease];
[tripleTapOneFinger setCancelsTouchesInView:YES];
[tripleTapOneFinger setNumberOfTapsRequired:3];
[tripleTapOneFinger setNumberOfTouchesRequired:1];
[tripleTapOneFinger setDelegate:self]; 
[[[CCDirector sharedDirector] openGLView] addGestureRecognizer:tripleTapOneFinger];

是的，我尝试添加这些，但没有成功

[doubleTap requireGestureRecognizerToFail:doubleTapTwoFingers];   
[doubleTap requireGestureRecognizerToFail:tripleTapOneFinger];  

[doubleTapTwoFingers requireGestureRecognizerToFail:doubleTap];   
[doubleTapTwoFingers requireGestureRecognizerToFail:tripleTapOneFinger];  

[tripleTapOneFinger requireGestureRecognizerToFail:doubleTap];   
[tripleTapOneFinger requireGestureRecognizerToFail:doubleTapTwoFingers];  

我错过了什么？

有没有办法在 handle 方法中检测点击次数？

谢谢

Answer 1

通过requireGestureRecognizerToFail:添加过多的手势识别器依赖会导致问题。在您的情况下，只需添加一个所需的依赖项：

[doubleTap requireGestureRecognizerToFail:tripleTapOneFinger];