UIKit：以编程方式调用 awakeFromNib？
我看到了这段代码：
CoolButton *coolButton = [[CoolButton alloc] initWithFrame:CGRectMake(0.0f, 0.0f, 60.0f, 25.0f)];
[coolButton awakeFromNib];
// ...
[coolButton release];
CoolButton 子类 UIButton。可以以编程方式调用 awakeFromNib 吗？
如果我想要以编程方式而不是从 nib 文件创建对象，执行与 -[CoolButton awakeFromNib] 中相同的操作，那么最好的方法是什么？
我应该定义一个方法并在 -[CoolButton awakeFromNib] 和 -[CoolButton initWithFrame] 中调用它吗？或者，我是否应该定义另一种初始化方法，该方法在两种情况下都会被调用：无论是以编程方式还是从 nib 文件创建 CoolButton ？
I saw this code:
CoolButton *coolButton = [[CoolButton alloc] initWithFrame:CGRectMake(0.0f, 0.0f, 60.0f, 25.0f)];
[coolButton awakeFromNib];
// ...
[coolButton release];
CoolButton subclasses UIButton. Is it OK to call awakeFromNib programmatically?
What's the best way to do this if I want to do the same things that are done in -[CoolButton awakeFromNib] for times that I want to create the object programmatically, instead of from a nib file?
Should I just define a method and call it in -[CoolButton awakeFromNib] and -[CoolButton initWithFrame]? Or, is there another initialization method I should define that gets called in both cases: whether I create a CoolButton programmatically or from a nib file?
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不，没有一种方法可以同时为代码中创建的对象和从 NIB 创建的对象调用。您应该编写一个包含公共初始化逻辑的单独方法，并从
awakeFromNib和initWithFrame:调用它。No, there isn't a method that gets called both for objects created in code and objects created from a NIB. You should write a separate method that contains the common initialization logic and call it from both
awakeFromNibandinitWithFrame:.每当 XIB 和 NIB 之间的所有连接都设置完毕时，
awakeFromNib就会被调用。我相信当从 nib 文件初始化对象时，会在对象上调用awakeFromNib。因此，如果您以编程方式创建它而不是使用 NIB 文件，则无需调用awakeFromNib。另一方面，调用initWithFrame听起来像是正确的方法。在此函数中，您可以通过编程方式创建视图，无需 nib 文件。我可能是错的，但我认为无论您的视图是否是使用笔尖创建的，都会调用initWithFrame。Well
awakeFromNibis called whenever all of the connections between the XIB and NIB are set. I believeawakeFromNibis called on an object when it is initialized from a nib file. So if you are creating it programmatically and not with a NIB file, then there's no need to callawakeFromNib. CallinginitWithFrame, on the other hand, sounds like the way to go. In this function you can programmatically create your view, with no need for a nib file. I could be wrong, but I thinkinitWithFrameis called regardless of whether your view is being created with a nib or not.