与UIGestureRecognizer一起侦听UITouch事件 [英] Listening to UITouch event along with UIGestureRecognizer

问题描述

我正在创建自定义UIView并在其上添加UITapGestureRecognizer。我有一个处理程序的点击手势。但同时我想让我的UIView听touchesBegan& touchesEnded方法。我实现了gestureRecognizer：shouldReceiveTouch：方法，但是touchesBegan / touchesEnded方法不会被调用。任何线索为什么？

I am creating a custom UIView and adding a UITapGestureRecognizer on it. I have a handler for the tap gesture. But at the same time I want my UIView to listen to touchesBegan & touchesEnded methods. I have implemented gestureRecognizer:shouldReceiveTouch: method also but touchesBegan/touchesEnded methods does not get called. Any clue why?

在自定义UIView内

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)iGestureRecognizer shouldReceiveTouch:(UITouch *)iTouch {
    return YES;
}

在我的视图控制器 b
$ b

Inside my view controller

MyCustomView aCustomView = [[[MyCustomView alloc] init] autorelease];
                UIGestureRecognizer *myGestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleGesture:)];
[aCustomView addGestureRecognizer:myGestureRecognizer];
                [myGestureRecognizer release];

推荐答案

您需要设置 cancelsTouchesInView （可能 delaysTouchesBegan 和 delaysTouchesEnded ）至 code>用于手势识别器。手势识别器的默认行为是避免它和视图两者都处理触摸。这些设置可让您调整此行为。

You need to set cancelsTouchesInView (and likely delaysTouchesBegan and delaysTouchesEnded) to NO for the gesture recognizer. The default behavior of a gesture recognizer is to avoid having both it and the view process the touch. These settings let you fine-tune that behavior.

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