CODEWITHSUNDEEP
iphoneiosobjective-c
V-Xtreme
V-Xtreme

Reputation: 7333

Getting exception "message sent to deallocated instance"

I have navigation controller on tab bar item 2 . I am doing some operations in tab bar item 2->navigation item 2 . when I click on button I want to go to the tab bar item 1 but at the same time I want navigation controller in 2nd tab to be set to its root view controller . I have tried following :

            [self.tabBarController setSelectedIndex:0];
            [self.navigationController popToRootViewControllerAnimated:NO];

But when I came back from tab 1 to tab 2 . It is giving me exception :"message sent to deallocated instance" . What is the correct way to achieve this ?

Upvotes: 0

Views: 221

Answers (1)

Preetam Jadakar
Preetam Jadakar

Reputation: 4561

To select first tab:

[self.tabBarController setSelectedIndex:0];

To switch tab's rootviewcontroller:

To achieve this you have use UITabBarBontroller's delegate method to pop to rootviewcontroller.

write it in AppDelegate

-(void)tabBarController:(UITabBarController *)tabBarController didSelectViewController:(UIViewController *)viewController
{

if (tabBarController.selectedIndex==1) {
//only for tab number 2
    if ([viewController isKindOfClass:[UINavigationController class]]) {

        UINavigationController *navController = (UINavigationController *)viewController ;
        [navController popToRootViewControllerAnimated:NO];
    }
 }

}

P.S. don't forget to add UITabBarControllerDelegate in AppDelegate.h

Upvotes: 1

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