App without Storyboard
iOS 14
- remove main story board from files
- from
=> info remove 'main storyboard file base name' - then drill down in scene manifest to remove main item 0 main file name and remove
adjust code in sceneDelegate:
class SceneDelegate: UIResponder, UIWindowSceneDelegate {
var window: UIWindow?
func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
guard let windowScene = (scene as? UIWindowScene) else { return }
let window = UIWindow(windowScene: windowScene)
window.rootViewController = ViewController()
window.makeKeyAndVisible()
self.window = window
}
...Project > Targets > Deployment Info
empty "Main Interface"
Remove Reference in Info.plist
Open your Info.plist
- Click the arrow at the leftmost of Application Scene Manifest (UIApplicationSceneManifest) key to expand
- Click the arrow at the leftmost of Scene Configuration (UISceneConfigurations) key to expand
- Click the arrow at the leftmost of Application Session Role (UIWindowSceneSessionRoleApplication) key to expand
- Click the arrow at the leftmost of First Item (Item 0) key to expand
- Remove the key Storyboard Name (UISceneStoryboardFile)
From IOS 13
Not in appDelegate anymore...
in SceneDelegate:
func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
// Use this method to optionally configure and attach the UIWindow `window` to the provided UIWindowScene `scene`.
// If using a storyboard, the `window` property will automatically be initialized and attached to the scene.
// This delegate does not imply the connecting scene or session are new (see `application:configurationForConnectingSceneSession` instead).
guard let windowScene = (scene as? UIWindowScene) else { return }
window = UIWindow(windowScene: windowScene)
window?.rootViewController = MockupIntroVC()
window?.backgroundColor = .systemBackground // optional
window?.makeKeyAndVisible()
}AppDelegate
var window: UIWindow?
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
window = UIWindow(frame: UIScreen.mainScreen().bounds)
if let window = window {
window.backgroundColor = UIColor.whiteColor()
window.rootViewController = ViewController()
window.makeKeyAndVisible()
}
return true
}ViewController
class ViewController: UIViewController {
var button :UIButton!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
view.backgroundColor = .redColor()
setupLayout()
}
func setupLayout()
{
if button == nil
{
self.view.addSubview(createButton(self))
}
}
func buttonPressed(sender:UIButton)
{
showNewViewController(SecondViewController())
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
print("\(__FUNCTION__)")
}
deinit
{
print("\(__FUNCTION__) v1")
}
}
// General funcs for demo purposes
func createButton(vc:UIViewController)->UIButton
{
let button:UIButton
button = UIButton(frame: CGRectMake(0,0,123,123))
button.backgroundColor = .yellowColor()
button.addTarget(vc, action: "buttonPressed:", forControlEvents: .TouchUpInside)
button.setTitle("Button", forState: .Normal)
return button
}
func showNewViewController(vc:UIViewController)
{
UIApplication.sharedApplication().keyWindow!.rootViewController = vc.self
}SecondViewController
class SecondViewController: UIViewController {
var button :UIButton!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
view.backgroundColor = .blueColor()
setupLayout()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func setupLayout()
{
if button == nil
{
self.view.addSubview(createButton(self))
}
}
func buttonPressed(sender:UIButton)
{
showNewViewController(ViewController())
}
deinit
{
print("\(__FUNCTION__) v2")
}
}