添加 TabBarController 作为视图的子视图

当我的应用程序启动时，我正在加载启动屏幕。然后我想加载一个TabBarController，它是ViewControllers。但是，我的 TabBarController 窗口无法缩放到屏幕尺寸。

底部的 TabBar 的 3/4 可能被切断，并且状态栏下方的屏幕顶部有一个大约 20 像素的细小间隙。如何正确调整 TabBarController 的大小？

这是我的 SplashViewController 中加载启动视图和 TabBarController 的代码：

 -(void)loadView{
// Init the view
CGRect appFrame = [[UIScreen mainScreen] applicationFrame];
UIView *view = [[UIView alloc] initWithFrame:appFrame];
view.autoresizingMask = UIViewAutoresizingFlexibleHeight|UIViewAutoresizingFlexibleWidth;
self.view = view;
[view release];

splashImageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"Splash.png"]];
splashImageView.frame = CGRectMake(0,0,320,458);
[self.view addSubview:splashImageView];

viewController = [[FlashCardViewController alloc] initWithNibName:@"FlashCardViewController"  bundle:[NSBundle mainBundle]];
//viewController.view.bounds = [[UIScreen mainScreen]bounds];
viewController.title = @"Quiz";
viewController.tabBarItem.image = [UIImage imageNamed:@"puzzle.png"];

UIViewController *viewController2 = [[UIViewController alloc] initWithNibName:nil  bundle:nil];
viewController2.title = @"Nada";
viewController2.tabBarItem.image = [UIImage imageNamed:@"magnifying-glass.png"];
//viewController.view.alpha = 0.0;
//[self.view addSubview:viewController.view];

tabBarController = [[UITabBarController alloc] init];
tabBarController.viewControllers = [NSArray arrayWithObjects:viewController, viewController2, nil];
[viewController2 release];
tabBarController.view.alpha = 0.0;
//tabBarController.tabBarItem.image = [UIImage imageNamed:@"State_California.png"];
//tabBarController.tabBarItem.title = @"State_California.png";
tabBarController.view.bounds = [[self view] bounds];
//tabBarController.view.frame = [[UIScreen mainScreen] applicationFrame];
[self.view addSubview:tabBarController.view];

timer = [NSTimer scheduledTimerWithTimeInterval:2.0 target:self selector:@selector(fadeScreen) userInfo:nil repeats:NO]; 
}
-(void) fadeScreen
{
[UIView beginAnimations:nil context:nil]; // begin animation block
[UIView setAnimationDuration:0.75]; // sets animation duration
[UIView setAnimationDelegate:self]; // sets the delegate for this block
[UIView setAnimationDidStopSelector:@selector(finishedFading)]; // Calls finishFading
self.view.alpha = 0.0; //  // Fades the alpha to 0 over animation
[UIView commitAnimations]; // Commits this block, done
}

-(void) finishedFading
{
[UIView beginAnimations:nil context:nil]; // Begin animation block
[UIView setAnimationDuration:0.75]; // set duration
self.view.alpha = 1.0; // fades the view to 1.0 alpha over .75 seconds
//viewController.view.alpha = 1.0;
tabBarController.view.alpha = 1.0;
[UIView commitAnimations];
[splashImageView removeFromSuperview];
}

我刚刚完成了几乎相同的任务并遇到了相同的问题，但最终我成功了。

1. 在 Xcode 中创建一个视图控制器类，名为Test1ViewController并添加以下内容：

   @interface Test1ViewController : UIViewController {
       IBOutlet UITabBarController *tbc;
   }
   
   @property (nonatomic,retain) IBOutlet UITabBarController *tbc;
   @end
   

2. 创建一个名为的视图 XIBTest1View

3. Add a TabBarViewController到厦门国际银行

4. 将 XIB 中的文件所有者设置为Test1ViewController.

5. 连接tbc文件所有者中的 IBOutlet 到 XIB 中的选项卡栏控制器。

6. 连接view文件所有者中的 IBOutlet 到 XIB 中的视图。

7. 在 SplashViewController.h 中添加属性

   Test1ViewController *tabBarViewController;
   

8. 合成tabBarViewController在你的SplashViewController.m.

9. 更换你的TabBarController在你的创建代码loadView中的方法SplashViewController具有以下内容：

   tabBarViewController = [[Test1ViewController alloc] initWithNibName:
           @"Test1View" bundle:[NSBundle mainBundle]];
   tabBarViewController.view.alpha = 0.0;
   [self.view addSubview:[tabBarViewController view]];
   

10. 这是我所缺少的一点。在Test1ViewController.m，您需要将以下行添加到viewDidLoad method:

    self.view = tbc.view;
    

11. 最后，我还必须改变finishedFading中的方法SplashViewController.m将 alpha 设置为 1.0tabBarViewController view.

    -(void) finishedFading
    {
        [UIView beginAnimations:nil context:nil];
        [UIView setAnimationDuration:0.75];
        self.view.alpha = 1.0;
        tabBarViewController.view.alpha = 1.0;
        [UIView commitAnimations];
        [splashImageView removeFromSuperview];
    }
    

我希望这有帮助。