ios - 从 AppDelegate 加载 Storyboard 在窗口上留下黑色空间

Question

我正在从 AppDelegate 启动 Storyboard，但屏幕顶部和底部出现黑色空间。这是我的代码:

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    // Override point for customization after application launch.

    [[UINavigationBar appearance] setTitleTextAttributes:@{NSForegroundColorAttributeName: [UIColor whiteColor]}];
    [[UINavigationBar appearance] setTintColor:[UIColor whiteColor]];
    UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:[NSBundle mainBundle]];
    UIViewController *vc =[storyboard instantiateInitialViewController];

    // Set root view controller and make windows visible
    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
    self.window.rootViewController = vc;
    [self.window makeKeyAndVisible];

    return YES;
}  

它是这样的:

Answer 1

这可能是因为您没有 Default-568h@2x.png 启动图像。

尝试添加一个或使用 Assets 目录中的启动图像，并为 iPhone 5 尺寸准备一个。

(也是:self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; 是必要的，它会返回你期望的吗？)