iOS UITabViewController use

1 appdelegate.m

  #import "AppDelegate.h"

#import "FirstViewController.h"

#import "SecondViewController.h"

#import "ThridViewController.h"

 

{

    self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];

    // Override point for customization after application launch.

    UIViewController *viewController1 = [[[FirstViewController alloc] initWithNibName:@"FirstViewController" bundle:nil] autorelease];

    UIViewController *viewController2 = [[[SecondViewController alloc] initWithNibName:@"SecondViewController" bundle:nil] autorelease];

    UIViewController *viewControll3 =[[[ThridViewController alloc] initWithNibName:@"ThridViewController" bundle:nil] autorelease];

    

    self.tabBarController = [[[UITabBarController alloc] init] autorelease];

    self.tabBarController.viewControllers = [NSArray arrayWithObjects:viewController1, viewController2,viewControll3, nil];

    self.window.rootViewController = self.tabBarController;

    [self.window makeKeyAndVisible];

    return YES;

}

2 FirstViewController.h

@interface FirstViewController : UIViewController

@end

 

3 FirstViewController.m

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil

{

    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];

    if (self) {

        self.title = NSLocalizedString(@"First", @"First");

        self.tabBarItem.image = [UIImage imageNamed:@"first"];

    }

    return self;

}