iphone - 添加导航栏按钮的最佳位置？

Question

我应该将创建 UIBarButtonItem 并将其分配给 self.navigationItem.rightBarButtonItem 的代码放在哪里？在 initWithNibName 或 viewDidLoad 中？

编辑:我应该澄清一下，我正在从 Interface Builder 加载 NIB。

Answer 1

viewDidLoad 是编程创建按钮的正确位置，无论您是否从 Interface Builder 加载 NIB。

来自UIViewController类，viewDidLoad方法文档

This method is called after the view controller has loaded its associated views into memory. This method is called regardless of whether the views were stored in a nib file or created programmatically in the loadView method. This method is most commonly used to perform additional initialization steps on views that are loaded from nib files.