xcode iPhone Dev - 手动创建 UIButton
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iPhone Dev - Create UIButton Manually
提问by mk12
I'm learning how to develop on the iPhone, I bought a book called Beginning iPhone 3 development Exploring the SDK. After I bit I decided to ditch Interface Builder. I still design all my views in IB, but I write It all in code and only use the nib file to get the controls' frames.
我正在学习如何在 iPhone 上进行开发，我买了一本名为 Beginning iPhone 3 development Exploring the SDK 的书。在我咬了一口之后，我决定放弃 Interface Builder。我仍然在 IB 中设计我的所有视图，但我全部用代码编写并且只使用 nib 文件来获取控件的框架。
So now I need to make a UIButton, and the documentation is different from the other controls. I tried using initWithFrame:, and theres this other method buttonWithType:which I assume is autoreleased, but anyway I couldn't get a button to appear on the screen. Could someone please write a bit of code that locally creates a button with a title I can change that I can then just add to my views subview and release so I can see how it's done?
所以现在我需要制作一个UIButton，并且文档与其他控件不同。我尝试使用initWithFrame:，还有另一种buttonWithType:我认为是自动发布的方法，但无论如何我无法让按钮出现在屏幕上。有人可以写一些代码，在本地创建一个带有标题的按钮，我可以更改它，然后我可以将其添加到我的视图子视图并发布，以便我可以看到它是如何完成的？
回答by Thomas Müller
I'd try something like this:
我会尝试这样的事情：
UIButton *myButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
myButton.frame = CGRectMake(20, 20, 200, 44); // position in the parent view and set the size of the button
[myButton setTitle:@"Click Me!" forState:UIControlStateNormal];
// add targets and actions
[myButton addTarget:self action:@selector(buttonClicked:) forControlEvents:UIControlEventTouchUpInside];
// add to a view
[superView addSubview:myButton];
Disclaimer: Just typing this in here. I don't have access to my Mac at the moment so I can't test it.
免责声明：只需在此处输入即可。我目前无法访问我的 Mac，因此无法对其进行测试。
P.S. Any particular reason not to use Interface Builder? Just curious.
PS 有什么特别的理由不使用 Interface Builder？只是好奇。
