不要调用UIGestureRecognizerStateEnded [英] Do not called UIGestureRecognizerStateEnded

问题描述

我在UIImageVIew上使用

I use on the my UIImageVIew the

-(IBAction)handlePanFrom:(UIPanGestureRecognizer *)recognizer

在我的代码中，我尝试使用两种状态:

and in the my code I try to use a two state:

if([recognizer state] == UIGestureRecognizerStateBegan)
{
      NSLog(@"Began");
}
if([recognizer state] == UIGestureRecognizerStateEnded)
{
      NSLog(@"End");
}

在控制台中，每当我开始移动UIImageView时，都会看到开始"消息，但是没有任何结束"消息...

in the console I see a "Began" message every time when I start move the UIImageView, but no any "End" message...

我做错了什么?

推荐答案

apple doc:

from apple doc:

UIGestureRecognizerStateEnded:

手势识别器已收到已识别的触摸，作为连续手势的结束.它在运行循环的下一个周期发送操作消息(或多个消息)，并将其状态重置为UIGestureRecognizerStatePossible.

The gesture recognizer has received touches recognized as the end of a continuous gesture. It sends its action message (or messages) at the next cycle of the run loop and resets its state to UIGestureRecognizerStatePossible.

plz试试 UIGestureRecognizerStateCancelled

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