CODEWITHSUNDEEP
iosuitabbarcontroller
user6631314
user6631314

Reputation: 1970

IOS/Objective-C: Programatically Change Text of Title for Standard UITabBar item

When a user segues to a second VC from within a starting VC that is embedded in a UITabBarController, I change the title of the UITabbarItem with some code placed in the viewWillAppear method of the second view controller.

//Second VC, View WIll Appear

UITabBarItem *selectedItem = self.tabBarController.tabBar.selectedItem;
    if (selectedItem) {
        selectedItem.title = @"VoiceMail";
    }

This works fine.

When the user returns to the starting view controller, I want to switch the title back.

I tried to do this by placing similar code in the view will appear method of the starting view controller.

Starting VC: ViewWIllAppear

UITabBarItem *selectedItem = self.tabBarController.tabBar.selectedItem;
    if (selectedItem) {
        selectedItem.title = @"Phone";
    }

But it is having no effect, leaving the title as Voicemail.

WOuld appreciate any suggestions on how to change back to initial value.

Thanks for any suggestions.

Upvotes: 0

Views: 42

Answers (1)

DonMag
DonMag

Reputation: 77690

Trying to change the "2nd" tab title by referencing .selectedItem in your "Starting VC" won't work, because at that point .selectedItem is StartingVC.

One approach would be to save a reference to the index of SecondVC... then, inside that VC, on viewWillDisappear you can reset its tab's title:

This is all in SecondVC:

#import "ChangeSecondViewController.h"

@interface ChangeSecondViewController ()

@property (assign, readwrite) NSInteger myTabIndex;

@end

@implementation ChangeSecondViewController

- (void)viewWillAppear:(BOOL)animated {
    [super viewWillAppear:animated];
    UITabBarItem *selectedItem = self.tabBarController.tabBar.selectedItem;
    if (selectedItem) {
        selectedItem.title = @"VoiceMail";
    }
}

- (void)viewDidAppear:(BOOL)animated {
    [super viewDidAppear:animated];
    _myTabIndex = self.tabBarController.selectedIndex;
}

- (void)viewWillDisappear:(BOOL)animated {
    [super viewWillDisappear:animated];
    UITabBarItem *myTabItem = [[self.tabBarController.tabBar items] objectAtIndex:_myTabIndex];
    if (myTabItem) {
        myTabItem.title = @"Phone";
    }
}

@end

Upvotes: 1

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