objective-c:examples:tabbarcontroller
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objective-c:examples:tabbarcontroller [2012/12/20 12:24] |
objective-c:examples:tabbarcontroller [2024/02/16 01:06] (current) |
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| + | ====== TabBarController ====== | ||
| + | Add two UIViewController named RootViewController and SecondRootViewController to your empty project | ||
| + | |||
| + | |||
| + | ===== Create a TabBarController for your project ===== | ||
| + | |||
| + | First step import the RootViewController.h and SecondRootViewController.h in your AppDelegate | ||
| + | <code objc> | ||
| + | #import "RootViewController.h" | ||
| + | #import "SecondRootViewController.h" | ||
| + | </code> | ||
| + | 2. Initialize RootViewController and SecondRootViewController\\ | ||
| + | 3. Initialize NavigationController with RootViewController\\ | ||
| + | 4. Initialize an array and add controllers for the tabbar\\ | ||
| + | 5. Initialize TabBarController\\ | ||
| + | 6. Add array of controllers to tabbar\\ | ||
| + | 7. Add tabbar to the window | ||
| + | <code objc> | ||
| + | - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions | ||
| + | { | ||
| + | // ** initialize window ** | ||
| + | self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; | ||
| + | |||
| + | // Override point for customization after application launch. | ||
| + | |||
| + | // ** initialize RootViewController ** | ||
| + | RootViewController *rootVC = [[RootViewController alloc] initWithNibName:@"RootViewController" bundle:nil]; | ||
| + | SecondRootViewController *secRootVC = [[SecondRootViewController alloc] initWithNibName:@"SecondRootViewController" bundle:nil]; | ||
| + | |||
| + | // ** Set titles and images of the controllers to display them in each tab and the navigationController`s navigationbar ** | ||
| + | rootVC.title = @"Root NavCon"; | ||
| + | rootVC.tabBarItem.image = [UIImage imageNamed:@"one.png"]; | ||
| + | |||
| + | secRootVC.title = @"Second RootVC"; | ||
| + | secRootVC.tabBarItem.image = [UIImage imageNamed:@"another.png"]; | ||
| + | |||
| + | // ** Initalize NavigationController with RootViewController ** | ||
| + | UINavigationController *navVC = [[UINavigationController alloc]initWithRootViewController:rootVC]; | ||
| + | |||
| + | // ** Init array with controllers ** | ||
| + | NSArray *tabBarArray = [[NSArray alloc]initWithObjects:navVC, secRootVC, nil]; | ||
| + | |||
| + | // ** Init TabBarController ** | ||
| + | UITabBarController *tabCon = [[UITabBarController alloc]init]; | ||
| + | |||
| + | // ** Add Controllers to the tabBar ** | ||
| + | tabCon.viewControllers = tabBarArray; | ||
| + | |||
| + | // ** Add NavigationController ** | ||
| + | self.window.rootViewController = tabCon; | ||
| + | |||
| + | self.window.backgroundColor = [UIColor whiteColor]; | ||
| + | [self.window makeKeyAndVisible]; | ||
| + | return YES; | ||
| + | } | ||
| + | </code> | ||
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