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iOS Build a Self-Destructing Message iPhone App Designing and Starting the App A Storyboard with a Tab Bar Controller

Diego Aguirre
Diego Aguirre
13,211 Points
Posted by Diego Aguirre
Diego Aguirre
13,211 Points

This is regarding setting a tab programmatically. I don't quite understand the question.

Here is the question :

//The tabs are stored in an array named tabBarItems (line 9). Declare a UITabBarItem variable named tab and set it from tabBarItems. Use the selectedIndex we just set as the index for the tab you get from the tabBarItems array.//

And here is what I have so far regarding the code :

import "MainViewController.h"

import "UITabBarItem.h"

@implementation MainViewController

  • (void)viewDidLoad { [super viewDidLoad];

    NSArray *tabBarItems = self.tabBarController.tabBar.items;

    // Add your code below! The property for MainViewController's // tab bar controller is named 'tabBarController'. self.tabBarController [self.tabBarController setSelectedIndex:2];

UITabBarItem *tab = tabBaritems[2]; }

MainViewController.m 
#import "MainViewController.h"
#import "UITabBarItem.h"

@implementation MainViewController

- (void)viewDidLoad {
    [super viewDidLoad];

    NSArray *tabBarItems = self.tabBarController.tabBar.items;

    // Add your code below! The property for MainViewController's 
    // tab bar controller is named 'tabBarController'.
       [self.tabBarController setSelectedIndex:2];

       UITabBarItem *tab = tabBarItems;

}

@end
Diego Aguirre
Diego Aguirre
13,211 Points
Diego Aguirre
Diego Aguirre
13,211 Points

Never mind I found my issue forgot to capitalize the I in tabBarItems.

Here is the right code in case anyone is interested. UITabBarItem *tab = tabBarItems[2];

Although I don't understand the purpose of the following code. Seems redundant?

[self.tabBarController setSelectedIndex:2];

1 Answer

landonferrier
landonferrier
25,097 Points

Diego, here is a full template for the social network application: Click Here.