手勢識別器的UIButton子視圖

我有一個UIView與兩個手勢識別器。兩人都用兩個手指識別敲擊：一個用於屏幕的上半部分，另一個用於屏幕的底部。在該UIView中，我有4個覆蓋整個屏幕的按鈕（每個按鈕都是屏幕的四分之一）。手勢識別器的UIButton子視圖

我使用手勢識別器來檢測用戶何時同時按下2個按鈕，並且我仍然想要識別按鈕上的正常觸摸。

我已經安裝了一切，它工作正常。但是，只用一根手指按下按鈕上的陰影會出現在觸摸上，而不是按下。感覺很奇怪。我試圖改變延遲觸摸開始沒有成功。

有兩種行爲方式嗎？用兩根手指檢測觸摸，但只有一根手指時有「正常行爲」？否則，我可以強制按下按鈕的狀態嗎？

下面是如何設置我的手勢：

-(void)initGestureRecognition{ 
    handClapTapGestureRecognizer = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(handClapDetected:)]; 
    handClapTapGestureRecognizer.numberOfTouchesRequired = 2; 
    handClapTapGestureRecognizer.numberOfTapsRequired = 1; 
    handClapTapGestureRecognizer.cancelsTouchesInView = YES; 
    [self.gestureRecognitionView addGestureRecognizer:handClapTapGestureRecognizer]; 
    handClapTapGestureRecognizer.delegate = self; 


    jumpTapGestureRecognizer = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(jumpDetected:)]; 
    jumpTapGestureRecognizer.numberOfTouchesRequired = 2; 
    jumpTapGestureRecognizer.numberOfTapsRequired = 1; 
    jumpTapGestureRecognizer.cancelsTouchesInView = YES; 
    [self.gestureRecognitionView addGestureRecognizer:jumpTapGestureRecognizer]; 
    jumpTapGestureRecognizer.delegate = self; 
} 

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer{ 

    return NO; 
} 


- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch{ 
    if ([gestureRecognizer isEqual:handClapTapGestureRecognizer] && [touch locationInView:self.view].y > self.view.frame.size.height/2) 
     return NO; 
    if ([gestureRecognizer isEqual:jumpTapGestureRecognizer] && [touch locationInView:self.view].y < self.view.frame.size.height/2) 
     return NO; 

    return YES; 
}

我知道我的問題是類似的一個：UIButton inside a view that has a UITapGestureRecognizer但不同的是，在我的情況下，該行爲是好的，我只是想在Touch DOwn上的按鈕上獲得陰影，而不是在Touch Up上。

感謝

來源

2013-09-24 Antoine Pastor