IPhone Dev: Activate the view of a tabBar button

Question

Hi,

I have an application that has a tabBar that handles all the views. In the first view I have a login process. When that process finishes I want to go automatically to the second tabBar view without making the user to click in its respective tabBar button.

All I've got until now is to highlight the button with this:

myTabBar.selectedItem = [myTabBar.items objectAtIndex:1];

But I have no idea about how to bring the second view related to that button to the front, automatically. Until now the user has to press the button when it gets lighted (selected).

Any idea about how to do this? Is it possible? It would be much appreciated. Thanks.

Answer 1

Use the selectedViewController or selectedIndex methods of the corresponding UITabBarController.

In response to the comments on this answer, I have provided an example of how this might be accomplished:

id firstViewController = [[FirstViewController alloc] initWithNibName:@"FirstView" bundle:[NSBundle mainBundle]];
id secondViewController = [[SecondViewController alloc] initWithNibName:@"SecondView" bundle:[NSBundle mainBundle]];

self.tabBarController = [[UITabBarController alloc] init];
self.tabBarController.viewControllers = [NSArray arrayWithObjects:firstViewController, secondViewController, nil];

[firstViewController release];
[secondViewController release];

// Select the second tab bar item and its view
self.tabBarController.selectedIndex = 1;

[self.window addSubview:tabBarController.view];
[self.window makeKeyAndVisible];

In my testing, it seems that using the selectedViewController method of UITabBarController to set the current view does not update the selectedIndex property (the new view is displayed but the selected UITabBarItem is not changed). This is in contrast to the behavior promised in the documentation. Using the selectedIndex method as demonstrated in the code snippet above should work fine, however.

Answer 2

Hi,

Finally I got the solution here:

http://stackoverflow.com/questions/677651/iphone-sdk-set-focus-to-different-tabbar-view-on-button-click-from-first-tabbar

Thanks anyways.