Question

我有一个scrollview。在scrollview中，我有三个子视图，A，B，C。当我点击子视图A时，我想获得其标记值或知道我点击了哪个视图。我已经浏览了很多代码和博客，但找不到解决方案。

    - (void)handleSingleTap:(UITapGestureRecognizer *)recognizer {}
    - (void) touchesBegan:(NSSet*)touches withEvent:(UIEvent*)event{} //This function is not working with sub view.

试过这些方法，但没有解决我的问题。

Answer 1

使用UITapGestureRecognizer。为每个A，B，C视图添加一个点击手势识别器，将该委托设置为视图控制器，每次点击都会通知您。

UITapGestureRecognizer* tgrA = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleSingleTap:)];
[viewA addGestureRecognizer:tgrA];
...

-(void) handleTapGesture:(UIGestureRecognizer *)sender 
{
    //sender.view.tag will give you what you need.
}

有关点击手势识别器的更多信息，请点击此处： https://developer.apple.com/library/ios/documentation/uikit/reference/UITapGestureRecognizer_Class/Reference/Reference.html

如何识别UIView子视图上的触摸

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