你如何阻止 UITapGestureRecognizer 捕捉到每一次点击? [英] How do you stop UITapGestureRecognizer from catching EVERY tap?

问题描述

你好，我有一个 opengl 视图，上面有一个标签栏.我正在使用点击识别器点击屏幕上的不同 3d 对象.在选项卡栏中，我有一个按钮，但它不起作用，因为点击识别器也会捕获这些点击.我该如何阻止?我已经试过了:

Hello I have an opengl view and on that I have a tab bar. I'm using a tap recognizer to tap different 3d objects on screen. In the tab bar I have a button but it doesn't work because the tap recognizer catches these taps too. How do I stop this? I've already tried this:

- (BOOL) gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch
{
  if ([touch.view isKindOfClass:[UIBarButtonItem class]]) return FALSE;
  return TRUE;
}

我想我以某种方式比较了错误的类，因为当我调试时它总是返回 TRUE.

I think I am somehow comparing wrong classess because when I debug it returns TRUE always.

推荐答案

或者你可以只做 [singleTap setCancelsTouchesInView:NO].示例:

Or you can just do [singleTap setCancelsTouchesInView:NO]. Example:

UITapGestureRecognizer *singleTap = [
    [UITapGestureRecognizer alloc]
    initWithTarget: self
    action: @selector(yourSelector:)
];
[singleTap setCancelsTouchesInView:NO];
[[self view] addGestureRecognizer: singleTap];

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