ios - 在 Objective-C 中实现 singleTap 和 doubleTap

Question

我将 singTap 和 doubleTap 添加到如下代码的 View 中:

-(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];
}

当双击时，singleTap 也会触发。如何在双击时禁用 singleTap？谢谢!

Answer 1

告诉单击识别器它需要双击识别器在触发之前失败:

[singleTapGesture requireGestureRecognizerToFail:doubleTapGesture];

(这实际上是 UIGestureRecognizer docs for this method 中的典型示例。)