Question

In my application i am using a tabbar controller where it contains 4 tabs.In one of the tab, Log out functionality is added where i am presenting the login view controller on click of log out tab. now when the user logs in i want the 1st tab selected defaulty. How to set that?

Answer 1

Do this way:

TabBarController* tabBar =  thisIsYourTabBarInstance; //
[tabBar setSelectedIndex:4];

to get TabBarController in your tab’s child UIViewController use

TabBarController* tabBar = [self tabBarController];

make a method in app delegate like this

in AppDelegate.h file

- (void)userIsLoggedOut;

and AppDelegate.m file

- (void)userIsLoggedOut    
{
    TabBarController* tabBar =  thisIsYourTabBarInstance; //
    [tabBar setSelectedIndex:4];
}

now anywhere write this:

AppDelegate *d= (AppDelegate*)[UIApplication sharedApplication].delegate;
[d userIsLoggedOut];