ios - 如何从容器视图中的视图控制器获取导航栏的句柄

Question

我在视图控制器中嵌入了一个容器视图。容器用于显示不同的视图控制器。如何更改标题或在父级导航栏中添加按钮？

谢谢！

Answer 1

You can access the navigationItem that controls those attributes directly as so (assuming self = your childViewController:

[self.parentViewController.navigationItem setTitle:<Your Text>];
[self.parentViewController.navigationItem setLeftBarButtonItem:<Your Button>];