Delegate from button tap inside custom uitableviewcell(从自定义 uitableviewcell 内的按钮点击委托)
问题描述
我已经阅读了 Apple 文档并浏览了这些论坛,并且我(成功地)完成了一些教程并让我自己的代表,我仍然不明白.我确信这是我正在疏远的事情,但由于我已经尽职尽责,但仍然不知道我做错了什么,我希望你们中的一个人能够告诉我.
I have read the Apple docs and I have trolled these forums and I have (successfully) done some tutorials and made my own delegates and I still do not understand something. I am sure that it is something I am spacing off but since I have done due diligence and still don't know what I'm doing wrong I was hoping one of you would be able to tell me.
情况:
我有一个自定义的 UITableViewCell,里面有一个按钮.当按钮被点击时,我试图从这个自定义单元格的代表中拉出 UIImagePickerController .我可以捕获并响应按钮点击没有问题,但流程永远不会进入委托方法.换句话说,当我单步执行代码时,一切都很好,直到我尝试从按钮目标方法单步到第二类中的委托方法.它永远不会被调用.
I have a custom UITableViewCell that has a button in it. When the button is tapped I am trying to pull up the UIImagePickerController form a delegate of this custom cell. I can trap and respond to the button tap no problem but the flow never goes to the delegate method. In other words, when I step through the code everything is fine until I try to step from the button target method to the delegate method in the second class. It just never gets called.
这是代码.
在自定义单元格的接口文件中,我为委托设置了 id,为 UIButton 设置了 IBOutlet,并设置了协议方法:
In the interface file for the custom cell I set the id for the delegate, set up the IBOutlet for the UIButton, and set the protocol method:
UIButton 与 IB 中的 getAPic 方法挂钩.
The UIButton is hooked up to the getAPic method in IB.
在自定义单元格的实现文件中,我将 UIButton 所针对的方法放在里面,并尝试在委托中调用委托方法:
In the implementation file for the custom cell I put the method that the UIButton targets on touch up inside and attempt to call the delegate method in the delegate:
在委托类接口中,我将其设置为自定义单元格的委托:
In the delegate class interface I set it as the delegate for the custom cell:
在委托类实现中,我尝试拉取 UIImagePickerController:
In the delegate class implementation I attempt to pull the UIImagePickerController:
我不明白为什么代理永远不会被调用!请理解我确定我错过了一些东西,但我已经多次浏览文档和这些论坛,但我找不到我做错了什么.我在代码的其他部分使用委托就好了.这一点不起作用.谁能告诉我我是什么胖手指?谢谢
I can not figure out why the delegate never gets called! Please understand I'm sure that I have missed something but I have been over the docs and these forums many times and I can not find what I am doing wrong. I am using delegates in other parts of the code just fine. This one spot does not work. Can anyone show me what I am fat-fingering? Thanks
推荐答案
你为什么要这样?直接在 UIViewController 类中,您可以像这样为按钮分配操作.
Why are you doing like this? Directly in UIViewController class you can assign action for button like this.
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