Switch and Hide TabBarItems

Question

Hi,

I have an iPhone application that is setup as follows:

• UITabBarController
• CustomViewControllerLogin (UIViewController)
• UINavigationController
• • CustomViewController1 (UIViewController)
• • CustomViewController2 (UIViewController)
• CustomViewControllerLogout (UIViewController)

How do I switch to CustomViewController1, when the user clicks the Login button on CustomViewControllerLogin?

I also, need to "hide" CustomViewControllerLogin and "show" CustomViewControllerLogout?

Thanks in advance!!! Jason

Answer 1

Well, your approach doesn't seem to be the most fortunate one to me.

What you could do is to replace the UITabBarController with a UINavigationController and go with the following approach:

• present your CustomViewControllerLogin modally. You can use something like this:

[self.navigationController presentModalViewController:instanceOf CustomViewControllerLogin animated:YES];

• set the rootViewController in the navigationController to be your CustomViewController1

• in your CustomViewControllerLogin, once the login is done successfully, dismiss the CustomViewControllerLogin using the following:

[self dismissModalViewControllerAnimated:YES]

• when this gets executed, your CustomViewController1 will be displayed. Do your app logic here and have a "Logout" button. You could put it on the navigation bar, on the right side for example.

• when the user taps on this logout button, you do the same as you did for the login:

[self.navigationController presentModalViewController:instanceOf CustomViewControllerLogout animated:YES];

I have seen a lot of apps where the UITabBarController is abused for purposes that it wasn't intended for. See for example this article.