Question

my app is a Tab based application, in some of the tabs there are navigation controller.

If I navigated in the view, and when I’m in the second view (in the navigation) and change the tab, when I click again the tab, it starts on the second view as I finished.

So, what I want, is when changing the tab,the

popToRootViewControllerAnimated:

effect. So, I will always starts on the first view.

How can I do this?

Thanks!

I add some code to my project following Bart Whiteley’s answer, my MainTab.h:

#import <UIKit/UIKit.h>

@interface MainTab : UITabBarController <UITabBarControllerDelegate,UITabBarDelegate>

@end

MainTab.m:

- (void)viewDidLoad
  {
   [super viewDidLoad];

   NSLog(@"this class is loaded");
   self.tabBarController.delegate = (id)self;
   [self setDelegate:self];
 }


 -(void) tabBarController:(UITabBarController *)tabBarController didSelectViewController:(UIViewController *)viewController
 {
  NSLog(@"changing tab");
   if ([viewController isKindOfClass:[UINavigationController class]]) {
     [(UINavigationController*)viewController popToRootViewControllerAnimated:YES];
   }
 }

SOLVED! I edit my post with the code

Thanks!

Answer 1

Set a delegate for the UITabBarController, and implement this delegate method:

-(void) tabBarController:(UITabBarController *)tabBarController didSelectViewController:(UIViewController *)viewController
{
   if ([viewController isKindOfClass:[UINavigationController class]]) {
     [(UINavigationController*)viewController popToRootViewControllerAnimated:YES];
   }
}