实施singleTap和doubleTap在Objective-C

2013-03-22 53 views 7 likes

我添加singTap和doubleTap到一个视图如下面的代码：实施singleTap和doubleTap在Objective-C

-(void)awakeFromNib{ 
    [self setUserInteractionEnabled:YES]; 
    // 
    UITapGestureRecognizer *doubleTapGesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleDoubleTapGesture:)]; 
    doubleTapGesture.numberOfTapsRequired = 2; 
    [self addGestureRecognizer:doubleTapGesture]; 

    UITapGestureRecognizer *singleTapGesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleSingleTapGesture:)]; 
    singleTapGesture.numberOfTapsRequired = 1; 
    [self addGestureRecognizer:singleTapGesture]; 
} 

-(void)handleSingleTapGesture:(UITapGestureRecognizer *)singleTapGesture{ 
    [[self delegate] singleTapOnView]; 
} 

-(void)handleDoubleTapGesture:(UITapGestureRecognizer *)doubleTapGesture{ 
    [[self delegate] doubleTapOnView]; 
}

当doubleTap的singleTap也很火。如何在doubleTap时禁用singleTap？谢谢！

来源

2013-03-22 Jack

回答

告诉单头识别器，它需要双击识别它触发之前失败：

[singleTapGesture requireGestureRecognizerToFail:doubleTapGesture];

（这实际上是在UIGestureRecognizer docs for this method典型的例子。）

来源

2013-03-22 01:51:24 Tim

实施singleTap和doubleTap在Objective-C

回答

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