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Seeing black bars at the top and bottom of the iPhone X Simulator（11个回答）
iOS 9 Xcode 7 - Application appears with black bars on top and bottom（17回答）
4年前关闭。
我创建了一个非常简单的UINavigationController应用程序。不使用IB，仅创建两个文件AppDelegate.swift和ViewController.swift。但结果看起来很奇怪。请检查所附的图像
我使用XCode 10.2.1。模拟器的屏幕不能完全填满，iphone8模拟器的状态栏放错了位置。

AppDelegate.swift:

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
    // Override point for customization after application launch.
    self.window = UIWindow(frame: UIScreen.main.bounds)
    let homeVC = ViewController(nibName: nil, bundle: nil)
    homeVC.title = "HOME"

    let nav = UINavigationController(rootViewController: homeVC)
    self.window?.rootViewController = nav
    self.window?.makeKeyAndVisible()

    return true
}

ViewController.swift:

class ViewController: UIViewController {

override func viewDidLoad() {
    super.viewDidLoad()
    self.view.backgroundColor = UIColor.yellow
    // Do any additional setup after loading the view.
}

我这是怎么了