在 Objective-C 中添加一个视图控制器作为另一个视图控制器的子级
我需要知道如何在 Objective-C 中添加一个视图控制器作为另一个视图控制器的子级。 截至目前，我将视图控制器作为根视图控制器的模式呈现。但我现在想改变它。我有 2 个视图控制器，我将它们作为根视图控制器的模式呈现。但我怎样才能以不同的方式呈现它们呢？这种亲子观念如何运作？请给我一些参考。
I need to know how to add one view contoller as a child of another view controller in objective-c.
As of now I am presenting a view controller as a modal of the rootview controller. But I want to change it now. I have 2 view controllers which I am presenting as modals of root view controller. But how can I present them in a different way? How does this parent-children concept work? Please give me some references.
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首先，您应该阅读以下内容：
视图控制器编程指南< /a>
滥用UIViewControllers
我相信，在它们两者之间，您应该能够学习大部分（如果不是全部）有关 UIViewControllers 和视图层次结构的知识。
To start with you should read the following:
View Controller Programming Guide
Abusing UIViewControllers
I believe that between the two of them you should be able to learn most, if not all, of what you need to learn about UIViewControllers and view hierarchys.