tabBarController and navigationControllers in landscape mode, episode II

Question

I have a UITabBarController, and each tab handles a different UIViewController that pushes on the stack new controllers as needed. In two of these tabs I need, when a specif

Answer 1

I ran into the same issues as you did when working with the UITabBarController. I needed to control which UIViewControllers were allowed to rotate and which were not. My main problem was with the MORE tab. I did not want any of the UIViewControllers included in the MORE tab to rotate.

My solution was to create my own UITabBarController which I called MyTabBarController:

@interface MyTabBarController : UITabBarController  {

}

Then I implemented the shouldAutorotateToInterfaceOrientation method:

@implementation MyTabBarController

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
 UIViewController *controller = [self selectedViewController];

 if ((controller == [self moreNavigationController]) || ([self selectedIndex] == 4))
 {
  return interfaceOrientation == UIInterfaceOrientationPortrait;
 }

 return [controller shouldAutorotateToInterfaceOrientation:interfaceOrientation];
}

@end

I needed to discover if the MORE tab was selected. This is a two step process; when the MORE tab is selected initially the API returns a selectedIndex higher than 4 so I needed to compare the selected controller with the moreNavigationController.

If an UIViewController is selected from within the MORE tab then the selectedIndex is finally 4 but the selectedController is not the moreNavigationController anymore but the UIViewController selected.

The if ((controller == [self moreNavigationController]) || ([self selectedIndex] == 4)) takes care of this issue.

Now, when I run my application my UIViewControllers in the MORE tab are not rotated. I hope this will help other developers who are running into the same issues as I did.

Emilio