TabBarController之前的启动画面

问题描述

我是iPhone开发人员的初学者，我正在开发我的第一个应用程序。实际上，我已经创建了一个Tab Bar应用程序，但我想在运行应用程序时添加启动画面。

I am a beginner of iPhone developer and I am working on my first apps. Actually, I already created a Tab Bar application well but I would like to add the Splash Screen when run the apps.

我在

但是当我尝试输入代码时，启动画面不会加载，只是继续显示我的tabbarcontroller。

But when I try to put in my code, the splash screen doesn't load and just keep showing my tabbarcontroller.

我创建了一个SplashViewController。 h，SplashViewController.m和SplashView.xib以下是我的代码，

I created a SplashViewController.h, SplashViewController.m and SplashView.xib and following is my code,

#import "SplashViewController.h"
...
...

    - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
        // Override point for customization after application launch.
        SplashViewController *controller = [[SplashViewController alloc] initWithNibName:@"SplashView" bundle:nil];
        [self.tabBarController presentModalViewController:controller animated:YES];
        [controller release];
        // Add the tab bar controller's view to the window and display.
        [self.window addSubview:tabBarController.view];
        [self.window makeKeyAndVisible];

        return YES;
    }

应用运行没有错误但只是无法加载启动画面，任何评论都是非常感谢。谢谢！

The apps run without error but just cannot load the splash screen, any comment is highly appreciated. Thanks!

推荐答案

我的猜测是标签栏控制器忽略了你对 presentModalViewController的调用：动画： 因为它还没有出现在屏幕上。将标签栏视图添加为窗口的子视图后，尝试将呼叫移至。即使在调用 makeKeyAndVisible 之后，它也可能发生。

My guess is that the tab bar controller is ignoring your call to presentModalViewController:animated: because it isn't on screen yet. Try moving the call to after the tab bar view has been added as a subview to the window. It may have to happen even after the call to makeKeyAndVisible.

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