Q.26 What is a UITabbarController.? Ans:-
- It is a subclass of UIViewController.
- By Using UITabbarController we can create Tab based application.
- In UITabBarController all views are placed on UITabBar.
- For every view UITabBar contains a button called TabBarItem.
- When we click on any TabBarItem then corresponding view will appear on screen.
- When we are working with UITabBarController then recommended to place 3 or 4 TabBarItemOnly.
- When we are working with UITabBarItem then that item image size should be 30X30 pixcel only and for retina image we can place 60X60 pixels.
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