如何获得UIButton目标，动作和控制事件？ [英] How to get UIButton Target, Action and Control events?

问题描述

我正在使用UIBmageView和UIButton一大堆。所以，我创建了一个自定义类来永久地将这两个结合起来，使事情变得更简单一些。一切顺利，直到我决定实现 - （id）initWithObject：（AUIImageViewButton *）imageViewButton。

I am using UIImageView's with UIButtons a whole bunch. So, I created a custom class to permanently marry these two an make things a little simpler. It all works well until I decided to implement -(id)initWithObject:(AUIImageViewButton *) imageViewButton.

显然我需要从传递的imageViewButton对象中复制所有相关属性。 UIImageView根本没有问题。这样的事情处理它：

Clearly I need to copy all relevant properties from the imageViewButton object being passed. The UIImageView is not problematic at all. Something like this deals with it:

imageview = [[UIImageView alloc] initWithFrame:imageViewButton.imageview.frame];        // Copy all relevant data from the source's imageview
[imagebutton.imageview setBackgroundColor:imageViewButton.imageview.backgroundColor];   //
[imagebutton.imageview setImage:imageViewButton.imageview.image];                       //

大部分按钮内容也随时可用：

Most of the button stuff is also readily available:

button = [UIButton buttonWithType:imageViewButton.button.buttonType];                   // Copy all relevant data from the source's button
button.frame = imageViewButton.imageview.frame;                                         // 
[button setTitle:imageViewButton.button.titleLabel.text forState:UIControlStateNormal]; //
button.tag = imageViewButton.button.tag;                                                //

我在弄清楚如何获取addTarget的所有数据时遇到一些麻烦： ：forControlEvents方法。

I am having a little trouble figuring out how to get all the data for the addTarget:action:forControlEvents method.

查看文档我可以看到我可以使用UIControl的allControlEvents和allTargets方法。我现在就深入研究它，看看我能遇到多少麻烦。我不确定的是行动。

Looking at the docs I can see that I might be able to use UIControl's allControlEvents and allTargets methods. I'll dig into that right now and see how much trouble I can get into. The one I am not sure about is the action.

任何人都可以向我推进正确的方向吗？

Can anyone give me a shove in the right direction?

谢谢，

-Martin

推荐答案

UIControl的 allTargets 和 allControlEvents 是开始的方式。最后一块拼图是 actionsForTarget：forControlEvent：，为每个目标和事件调用一次。

UIControl's allTargets and allControlEvents are the way to start. The final piece of the puzzle is actionsForTarget:forControlEvent:, call it once for each target and event.

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