如何将视图控制器更改为选项卡栏控制器作为根视图控制器

Question

I set the simple view controller as root view controller through navigation controller. Now I want to set the tab bar controller as root view controller. I am using Objective-C with Xcode 7.

Answer 1

Assuming you're inside a view controller when you want to switch, you could use:

UIStoryboard *sb = [self storyboard];
UIViewController *vc = [sb instantiateViewControllerWithIdentifier:@"tabBarController"];
self.view.window.rootViewController = vc;

Otherwise, you could call your app delegate and have it switch using its window property.