iphone – UITapGestureRecognizer在UIImageView中不起作用

我有以下代码：

UITapGestureRecognizer *showStoryTapRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(showNewsstory:)];
[showStoryTapRecognizer setDelegate:self];
[self.storyImageView_ addGestureRecognizer:showStoryTapRecognizer];
[showStoryTapRecognizer release];

然而这并不会引发showNewsstory,为什么呢？我已经在图像视图中启用了userInteraction.

解决方法

UITapGestureRecognizer *onetouch=[[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(OnetouchHandeler)];

[onetouch setNumberOftouchesrequired:1];

[imageView addGestureRecognizer:onetouch];

imageView.userInteractionEnabled = YES;