UINavigationController and UITabBarController are used together

1. Create a Tabbed Application. Projects with two tabs are created by default.

2. Add in AppDelegate. h

 

1. @ Property (strong, nonatomic) UINavigationController * NaviView1Controller;
2. @ Property (strong, nonatomic) UINavigationController * NaviView2Controller;

3. Modify the didfinishlaunchingwitexceptions function of the AppDelegate. m file. Here we set the corresponding UINavigationController.

 

1. -(BOOL) application :( UIApplication *) application didfinishlaunchingwitexceptions :( NSDictionary *) launchOptions
2. {
3. Self. window = [[[UIWindow alloc] initWithFrame: [[UIScreen mainScreen] bounds] autorelease];
4. // Override point for customization after application launch.
5. UIViewController * viewController1 = [[[FirstViewController alloc] initWithNibName: @ "FirstViewController" bundle: nil] autorelease];
6. UIViewController * viewController2 = [[[SecondViewController alloc] initWithNibName: @ "SecondViewController" bundle: nil] autorelease];
7. Self. tabBarController = [[UITabBarController alloc] init] autorelease];
8. Self. tabBarController. viewControllers = @ [viewController1, viewController2];
9. Self. window. rootViewController = self. tabBarController;
10. [Self. window makeKeyAndVisible];
11. Return YES;
12. }

After modification:

1. -(BOOL) application :( UIApplication *) application didfinishlaunchingwitexceptions :( NSDictionary *) launchOptions
2. {
3. Self. window = [[[UIWindow alloc] initWithFrame: [[UIScreen mainScreen] bounds] autorelease];
4. // Override point for customization after application launch.
5. UIViewController * viewController1 = [[[FirstViewController alloc] initWithNibName: @ "FirstViewController" bundle: nil] autorelease];
6. ViewController1.title = @ "View1 ";
7. Self. NaviView1Controller = [[UINavigationController alloc] initWithRootViewController: viewController1] autorelease];
9. UIViewController * viewController2 = [[[SecondViewController alloc] initWithNibName: @ "SecondViewController" bundle: nil] autorelease];
10. ViewController2.title = @ "View2 ";
11. Self. NaviView2Controller = [[UINavigationController alloc] initWithRootViewController: viewController2] autorelease];
13. Self. tabBarController = [[UITabBarController alloc] init] autorelease];
17. Self. window. rootViewController = self. tabBarController;
18. [Self. window makeKeyAndVisible];
19. Return YES;
20. }

------------------------

1. -(BOOL) application :( UIApplication *) application didfinishlaunchingwitexceptions :( NSDictionary *) launchOptions
2. {
3. Self. window = [[[UIWindow alloc] initWithFrame: [[UIScreen mainScreen] bounds] autorelease];
4. // Override point for customization after application launch.
5. UIViewController * viewController1 = [[[FirstViewController alloc] initWithNibName: @ "FirstViewController" bundle: nil] autorelease];
6. ViewController1.title = @ "View1 ";
7. Self. NaviView1Controller = [[UINavigationController alloc] initWithRootViewController: viewController1] autorelease];
9. UIViewController * viewController2 = [[[SecondViewController alloc] initWithNibName: @ "SecondViewController" bundle: nil] autorelease];
10. ViewController2.title = @ "View2 ";
11. Self. NaviView2Controller = [[UINavigationController alloc] initWithRootViewController: viewController2] autorelease];
13. Self. tabBarController = [[UITabBarController alloc] init] autorelease];
15. Self. tabBarController. viewControllers = @ [self. NaviView1Controller, self. NaviView2Controller];
17. Self. window. rootViewController = self. tabBarController;
18. [Self. window makeKeyAndVisible];
19. Return YES;
20. }