iOS Tab Bar Usage

It is generally used to switch between subtasks, views, or models within the same view.

An example of the tab bar is shown below:

Important Properties

• backgroundImage
• items
• selectedItem

Example Code and Steps

1. Create a new project, selectTabbed ApplicationAlternative View Application, click Next, enter the project name and selectcreate.

2. Here, two view controllers and a tab bar are created by default and added to our application.

3. AppDelegate.m didFinishLaunchingWithOptionsThe method is as follows:

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] 
    bounds]];
    // Override point for customization after application launch.
    UIViewController *viewController1 = [[FirstViewController alloc] 
    initWithNibName:@"FirstViewController" bundle:nil];
    UIViewController *viewController2 = [[SecondViewController alloc] 
    initWithNibName:@"SecondViewController" bundle:nil];
    self.tabBarController = [[UITabBarController alloc] init];
    self.tabBarController.viewControllers = @[viewController1, 
    viewController2];
    self.window.rootViewController = self.tabBarController;
    [self.window makeKeyAndVisible];
    return YES;
}

4. The two view controllers are used to assign as the view controllers of the tab bar controller.

5. Run the application, and you will get the following result:

Other Extensions