触及UIImageView的事件处理程序 [英] touches event handler for UIImageView

问题描述

我刚刚接受了iPhone开发的陈述，似乎无法找到答案，我正在寻找我想做的事情。

I am just getting stated with iPhone development and can't seem to find the answer I am looking for what I want to do.

好像我应该能够以编程方式创建一个UIImageView，然后为它的触摸功能设置一个事件处理程序。

It seems like I should be able to programmatically create a UIImageView and then set up an event handler for it's touch functions.

在c＃中我会有类似的东西

in c# i would have something that looks like

按钮b =新的Button（）;
b.Click + =我的处理程序代码

Button b = new Button(); b.Click+= my handler code

现在我有这个

CGRect myImageRect = CGRectMake(0.0f, 0.0f, 141.0f, 151.0f);
UIImageView *myImage = [[UIImageView alloc] initWithFrame:myImageRect];

myImage.userInteractionEnabled = YES;
[myImage setImage:[UIImage imageNamed:@"myImage.png"]];
myImage.opaque = YES; // explicitly opaque for performance
[self.view addSubview:myImage];
[myImage release];

如何覆盖触摸事件需要做什么？

What do I need to do to override the touch events?

谢谢

推荐答案

虽然这不是您问题的完整答案，但我认为以下解决方案可能是更好，然后做隐形按钮 - 解决方法..
只是从UIImageView子类并覆盖以下方法：

While it is not the complete answer to your question, i think the following solution might be better then doing the "invisible-button-workaround".. simply subclass from UIImageView and override the following method:

-(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event
{

 //your UIImageView has been touched :)

 //event -> "A UIEvent object representing the event to which the touches belong."

 //touches -> "A set of UITouch instances in the event represented by event that    represent the touches in the UITouchPhaseEnded phase."

}

希望这会有所帮助......

hope this helps...

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