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


This is the code I have:

// Add your code below! The property for MainViewController's // tab bar controller is named 'tabBarController'.

[self.tabBarController setSelectedIndex:2]; 
UITabBarItem *tab = [tabBarItems selectedIndex:2];




1 Answer

[self.tabBarController setSelectedIndex:2];

1.TabBarItems is an array which is holding the information or lets say the name of al the items which will be stored and displayed as tabs. 2.we need to declare a variable of type UITabBarItem which is named as tab.

  1. We have already selected the current tab to be of number 3( ie index[2]) using the [self.tabBarController setSelectedIndex:2]; method ie the current selected item is Index:2 which we need to assign to tab variable. tabBarItems has the list of all the tabs and the current tab is index:2 which can be accessed using tabBarController so that's how we are going to use the line specified below.

    UITabBarItem *tab= tabBarItems [self.tabBarController.selectedIndex] ;

I hope you understand what i am trying to say here.... and it solves your problem...