xcode 以编程方式生成 UIButton 并将它们与 IBAction 关联
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/2370031/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
Programmatically generating UIButtons and associate those with IBAction
提问by Nicsoft
How do I do if I want to programatically generate a set of buttons and then associate those with IBActions? It's easy if I add the buttons in Interface Builder, but that I cannot do for this case.
如果我想以编程方式生成一组按钮，然后将它们与 IBActions 相关联，我该怎么办？如果我在 Interface Builder 中添加按钮很容易，但在这种情况下我不能这样做。
回答by mrueg
The buttons have the method - (void)addTarget:(id)target action:(SEL)action forControlEvents:(UIControlEvents)controlEvents.
按钮有方法- (void)addTarget:(id)target action:(SEL)action forControlEvents:(UIControlEvents)controlEvents。
The code to use this would look like this:
使用它的代码如下所示：
UIButton *myButton = [[UIButton alloc] init...];
[myButton addTarget:something action:@selector(myAction) forControlEvents:UIControlEventTouchUpInside];
This assumes that your IBAction is named myActionand that somethingis the controller for which that action is defined.
这假设您的 IBAction 已命名myAction并且something是为其定义该操作的控制器。
回答by Macmade
First, create the button:
首先，创建按钮：
UIButton * btn;
btn = [ [ UIButton alloc ] initWithFrame: CGRectMake( 0, 0, 200, 50 ) ];
Then adds an action:
然后添加一个动作：
[ btn addTarget: self action: @selector( myMethod ) forControlEvents: UIControlEventTouchDown ];
Then adds the button to a view:
然后将按钮添加到视图中：
[ someView addSubView: btn ];
[ btn release ];
