Je souhaite définir rootViewController dans le délégué de l'application.
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: NSDictionary?) -> Bool {
var rootView: MyRootViewController = MyRootViewController()
//Code to set this viewController as the root view??
return true
}
Vous pouvez faire quelque chose comme ça.
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: NSDictionary?) -> Bool {
var rootView: MyRootViewController = MyRootViewController()
if let window = self.window{
window.rootViewController = rootView
}
return true
}
Si vous utilisez un storyboard et souhaitez définir votre rootViewController par programme, assurez-vous d'abord que ViewController a un ID de storyboard dans l'inspecteur d'identité ..__, puis procédez comme suit dans AppDelegate:
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
// get your storyboard
let storyboard = UIStoryboard(name: "Main", bundle: nil)
// instantiate your desired ViewController
let rootController = storyboard.instantiateViewControllerWithIdentifier("MyViewController") as! UIViewController
// Because self.window is an optional you should check it's value first and assign your rootViewController
if let window = self.window {
window.rootViewController = rootController
}
return true
}
Swift 2.0:
var window: UIWindow?
var storyboard:UIStoryboard?
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
window = UIWindow(frame: UIScreen.mainScreen().bounds)
window?.makeKeyAndVisible()
storyboard = UIStoryboard(name: "Main", bundle: nil)
let rootController = storyboard!.instantiateViewControllerWithIdentifier("secondVCID")
if let window = self.window {
window.rootViewController = rootController
}
Si vous n'utilisez pas de scénarimage, vous devez faire certaines choses. À l'intérieur de AppDelegate à l'intérieur de l'application de fonction.
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
// Override point for customization after application launch.
let frame = UIScreen.mainScreen().bounds
window = UIWindow(frame: frame)
let itemsViewControler: UITableViewController = BNRItemsViewController()
if let window = self.window{
window.rootViewController = itemsViewControler
window.makeKeyAndVisible()
}
return true
}
if let tabBarController = self.window!.rootViewController as? UITabBarController
{
tabBarController.selectedIndex = 0
}