如何在xcode中以编程方式向按钮添加动作 [英] How do you add an action to a button programmatically in xcode

问题描述

我知道如何通过从界面构建器拖动来向按钮添加IBAction，但我想以编程方式添加动作以节省时间并避免不断地来回切换。解决方案可能非常简单，但我在搜索时似乎无法找到任何答案。谢谢！

I know how to add an IBAction to a button by dragging from the interface builder, but I want to add the action programmatically to save time and to avoid switching back and forth constantly. The solution is probably really simple, but I just can't seem to find any answers when I search it. Thank you!

推荐答案

试试这个：

[myButton addTarget:self 
             action:@selector(myAction) 
   forControlEvents:UIControlEventTouchUpInside];

您可以在Apple的文档中找到丰富的信息来源。请查看 UIButton的文档，它将揭示UIButton是 UIControl，实现添加目标。

You can find a rich source of information in Apple's Documentation. Have a look at the UIButton's documentation, it will reveal that UIButton is a descendant of UIControl, which implements the method to add targets.

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你需要注意在
中 myAction 之后是否添加冒号操作：@selector（myAction）

You'll need to pay attention to whether add colon or not after myAction in action:@selector(myAction)

这是参考

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