iPhone iOS如何将UILongPressGestureRecognizer和UITapGestureRecognizer添加到同一控件并防止冲突？ [英] iPhone iOS how to add a UILongPressGestureRecognizer and UITapGestureRecognizer to the same control and prevent conflict?

问题描述

我正在构建一个iPhone应用程序，让用户重新排列屏幕上的一些UI元素。

I'm building an iPhone app that would let the user rearrange some of the UI elements on the screen.

如何在同一个UIView中添加轻击手势识别器和长按手势识别器？当我从长按中抬起手指时，轻敲手势识别器会触发。如何在用户执行长按时暂时禁用点击手势识别器或阻止其触发？

How can I add a tap gesture recognizer and a long press gesture recognizer to the same UIView? When I lift up the finger from the long press, the tap gesture recognizer fires. How can I temporarily disable the tap gesture recognizer or prevent it from firing when the user is performing a long press?

谢谢！

推荐答案

要允许两个手势一起使用，请实现以下委托方法：

To allow both gestures to work together, implement the following delegate method:

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer{
    return YES;
}

为了使长按具有第一优先权，请执行：

To make it so that the long press has first priority, do:

[tapGesture requireGestureRecognizerToFail：longPress];

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