在表视图中处理多个UISwitch控件，而不使用标记属性 [英] Handling multiple UISwitch controls in a table view without using tag property

问题描述

我有一个表视图控制器，其中有多个UISwitch控件。我将委托设置为表视图控制器，对所有交换机采用相同的操作。我需要能够确定什么开关被改变，所以我创建一个字符串数组，包含每个开关的名称。数组中的索引将被放在每个UISwitch的标签属性中。

I have a table view controller with multiple UISwitch controls in them. I set the delegate to the table view controller with the same action for all switches. I need to be able to determine what switch was changed, so I create an array of strings that contains the name of each switch. The indexes in the array will be put in the tag property of each UISwitch.

但是，我已经准备好使用tag属性的东西，控制在cellForRowAtIndexPath与viewWithTag的单元格！ （我需要在每个单元格内设置几件事情。）

However, I'm ready using the tag property for something else, namely to find the right control in the cell in cellForRowAtIndexPath with viewWithTag! (There are several things I need to set within each cell.)

那么，我在这里沿着正确的线吗？我觉得我非常有限，如何确定哪个UISwitch改变了它的价值，所以我可以做一些有用的东西。

So, am I thinking along the right lines here? I feel I'm rather limited in how I find out exactly which UISwitch changed its value, so I can do something useful with it.

推荐答案

我通过子类化UISwitch像这样固定这：

I fixed this by subclassing UISwitch like so:

@interface NamedUISwitch : UISwitch {
NSString *name;

}

索引数组需要）和标签属性可以随意做任何它想要的。

It seems elegant (no index arrays required) and the tag property is free to do whatever it wants.

我读到你必须小心在Objective-C子类化，虽然...

I read that you have to be careful with subclassing in Objective-C, though...

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