Question

I have a tabbarcontroller and it has 3 tabbaritems. in the first screen, there is a button and upon clicking that button i need to deactivate all the tababritems in the application.

How can I deactivate all the tabbaritems in the application programmatically?

It looks something like this

Answer 1

You can set a BOOL property on your ViewController that has the button.

BOOL isInDisabledTabState;
@property BOOL isInDisabledTabState;

Then also implement the UITabBarControllerDelegate protocol in your view controller.

MyViewController:UIViewController <UITabBarControllerDelegate>

Set your view controller as the tab bar delegate on the tab bar.

- (void)viewDidLoad {
[self.tabBarController setDelegate:self];
}

Then when the button is pressed set the BOOL property to TRUE/FALSE accordingly.

-(IBAction) disableTabsButtonPressed:(id)sender {
    self.isInDisabledTabState = TRUE;
}

In your ViewController also implement the following protocol method in your view controller (See reference for UITabBarControllerDelegate)

- (BOOL)tabBarController:(UITabBarController *)tabBarController shouldSelectViewController:(UIViewController *)viewController {
    if (self.isInDisabledTabState) {
        return FALSE;    // If in disabled state don't switch to the other tab
    }
    return TRUE;    // else switch.

}