RootView快速导航

Question

我是一个Objectie-C开发人员。对于根视图导航，我使用了Objectie-c中的以下代码

 FirstViewController *fvc=[[FirstViewController alloc]init];
 UINavigationController *nv=[[UINavigationController alloc]initWithRootViewController:fvc];
 self.window.rootViewController=nv;

对于我的新项目，我正在迅速地完成它，我只想从AppDelegate.swift中进行AppDelegate.swift导航。

Answer 1

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: NSDictionary?) -> Bool {

 var rootVie: FirstViewController = FirstViewController()  // this is allocation method in swift

 if let window = self.window{
        window.rootViewController = rootVie
 }

 return true
}

需要参考使用此link

Answer 2

检查下面的代码。首先我们创建窗口。然后分配init视图控制器。然后分配以根控制器为视图控制器的导航控制器。和窗口的根控制器作为导航控制器。

var window: UIWindow?
var navC : UINavigationController?
var vc:ViewController?

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool
{
    // alloc init window
    self.window = UIWindow(frame: UIScreen.mainScreen().bounds)

    // view controller
    self.vc = ViewController(nibName: "ViewController", bundle: nil);

    // create navigation controller with root = vc.
    self.navC = UINavigationController(rootViewController: self.vc!);
    self.navC?.navigationBar.hidden = true;

    // window's root controller as navigation controller.
    self.window?.rootViewController = self.navC
    self.window?.makeKeyAndVisible()

    return true
}

也许这个能帮到你。