问题描述
如果我以编程方式(没有 IB)实例化 UINavigationController，有谁知道如何使用我的自定义子类 UINavigationBar?
Does anyone know how can I use my custom subclass of UINavigationBar if I instantiate UINavigationController programmatically (without IB)?
在 IB 中拖动 UINavigationController 向我显示导航栏下并使用 Identity Inspectory 我可以更改类类型并设置自己的 UINavigationBar 子类，但以编程方式我不能, navigationBar 导航控制器的属性是只读的...
Drag a UINavigationController in IB show me an under Navigation Bar and using Identity Inspectory I can change class type and set my own subclass of UINavigationBar but programmatically I can't, navigationBar property of Navigation Controller is readonly...
如何以编程方式自定义导航栏?IB比代码"更强大"吗?我相信在 IB 中可以完成的所有事情也可以通过编程方式完成.
What should I do to customize the navigation bar programmatically? Is IB more "powerful" than "code"? I believed all that can be done in IB could be done also programmatically.
推荐答案
你不需要搞砸XIB，只需使用KVC.
You don't need to muck with the XIB simply use KVC.
[self.navigationController setValue:[[[CustomNavBar alloc]init] autorelease] forKeyPath:@"navigationBar"];
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