使UITabBar不增加在的appDelegate文件

Question

我在做這將有3頁

1. 登錄頁面的應用程序 - 第一頁的應用程序加載

2. 我的第一頁後 - 當用戶成功登錄然後他進入此頁面。此頁面
   包含具有兩個UITabBarItems的UITabBar。第一個是連接到

   我的第一頁

   ，另一個我的第二頁。

3. 我的第二頁 - 這是另一個UIViewController。

我已經做出登錄頁面，但我無法找到解決UITabBar在我的第一頁添加

請幫我

Answer 1

定義 AppDelegate.h

@property (strong, nonatomic) UITabBarController *tabBarController; 

在AppDelegate.m

didFinishLaunchingWithOptions

self.tabBarController = [[UITabBarController alloc] init]; 
self.tabBarController.delegate=self; 
self.tabBarController.selectedIndex=0; 
self.tabBarController.delegate=self; 


- (BOOL)tabBarController:(UITabBarController *)tabBarController shouldSelectViewController:(UIViewController *)viewController{ 

return YES; 
} 

現在，當你得到下面的代碼登錄成功寫在方法

AppDelegate *delegate = (AppDelegate *)[[UIApplication sharedApplication] delegate]; 
    UIViewController *viewController1 = [[FirstViewController alloc] initWithNibName:@"FirstViewController" bundle:nil]; 
    UIViewController *viewController2 = [[SecondViewController alloc] initWithNibName:@"SecondViewController" bundle:nil]; 

    delegate.tabBarController = [[UITabBarController alloc] init]; 
    delegate.tabBarController.selectedIndex = 0; 
    delegate.tabBarController.viewControllers = [NSArray arrayWithObjects:viewController1, viewController2, nil]; 
    delegate.tabBarController.modalTransitionStyle = UIModalTransitionStyleCoverVertical; 
    [self.navigationController pushViewController:delegate.tabBarController animated:YES]; 

Answer 2

嘗試了這一點，

想這是LoginViewController.m

-(IBAction)loginButtonClicked:(id)sender 
{ 
    [self createTabBarView]; 
} 

//Create TabBar View here 
-(void)createTabBarView 
{ 
    NSMutableArray *tabItems = [NSMutableArray array]; 
    UIViewController *firstViewController = [[FirstViewController alloc] init];; 
    firstViewController = @"First View"; 
    firstViewController = [[UITabBarItem alloc]initWithTabBarSystemItem:UITabBarSystemItemContacts tag:0]; 
     [tabItems addObject:firstViewController]; 
     UIViewController *secondViewController = [[SecondViewController alloc] init];; 
     secondViewController = @"Second View"; 
     secondViewController = [[UITabBarItem alloc]initWithTabBarSystemItem:UITabBarSystemItemContacts tag:1]; 
     [tabItems addObject:secondViewController]; 
     self.tabBarController = [[UITabBarController alloc]init]; 
     self.tabBarController.viewControllers = tabItems;  
     self.tabBarController.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal; 
     [self presentModalViewController:tabBarController animated:YES]; 
} 

謝謝，

Nikhil。

Answer 3

您使用的是界面構建器嗎？ 從我的角度來看，我寧願使用編程方式來實現它。

//In the appDidFinishLaunch method 

    BOOL loggedIn = [[NSUserDefault standDefault]boolForKey:"userlogin"]; 

    if(loggedIn) 
    { 

     //Setup your UITabbarViewController 

    } 
    else 
    { 

     //Setup your loginView Controller 
    } 

登錄後在LogInViewController

- (void)didLogin 
{ 

    YourAppDelegate *delegate = [UIApplication shareApplication].delegate; 

    [delegate.window addSubView:self.tabBarViewController.view]; 

    [delegate.window removeSubView:self.view] 

    //Other Config 

} 

Answer 4

你應該在的地方，你可以識別登錄成功完成創建的TabBar。這個方法應該是你的loginViewController的一部分。 創建一個如下所示的函數來創建一個Tabbar並將其顯示在loginController上。

-(void) createTabBarController 
{ 
    UITabBarController *tabBar = [[UITabBarController alloc]init]; 

    UIViewController *firstViewController = [[[UIViewController alloc] init]autorelease]; 
    UINavigationController *firstNavController = [[UINavigationController alloc]initWithRootViewController:firstViewController]; 
    firstNavController.tabBarItem.title=@"First Controller"; 
    firstNavController.tabBarItem.image = [UIImage imageNamed:@"first.png"]; 

    UIViewController *secondViewController = [[[UIViewController alloc] init]autorelease]; 
    UINavigationController *secondNavController = [[UINavigationController alloc]initWithRootViewController:secondViewController]; 
    secondNavController.tabBarItem.title=@"First Controller"; 
    secondNavController.tabBarItem.image = [UIImage imageNamed:@"first.png"]; 

    [tabBar setViewControllers:[NSArray arrayWithObject:firstNavController,secondNavController,nil]];  
    [firstNavController release]; 
    [secondNavController release]; 

    [self presentModalViewController: tabBar]; 
    [tabBar release]; 
}