应用程序应该在应用程序启动结束时有一个根视图控制器 [英] Applications are expected to have a root view controller at the end of application launch

问题描述

我的控制台出现以下错误:

I get the following error in my console:

应用程序应该在应用程序启动结束时有一个根视图控制器

Applications are expected to have a root view controller at the end of application launch

下面是我的 application:didFinishLaunchWithOptions 方法:

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {

    // Set Background Color/Pattern
    self.window.backgroundColor = [UIColor blackColor];
    self.tabBarController.tabBar.backgroundColor = [UIColor clearColor];
    //self.window.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@"testbg.png"]];

    // Set StatusBar Color
    [[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleBlackTranslucent];

    // Add the tab bar controller's current view as a subview of the window
    self.window.rootViewController = self.tabBarController;
    [self.window makeKeyAndVisible];
    return YES;
}

在 Interface Builder 中，UITabBarController 的委托连接到应用程序委托.

In Interface Builder, the UITabBarController's delegate is hooked up to the App Delegate.

有人知道如何解决这个问题吗?

Anyone know how to fix this issue?

推荐答案

在 AppDelegate 中替换

Replace in AppDelegate

 [window addSubview:[someController view]];

到

  [self.window setRootViewController:someController];

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