Widget link works but does nothing - ios

Question

I have a widget with a link. I'm implementing the widget URL in SceneDelegate. The problem is when I tap on the widget I get a link, it works. But when I call View Controller function in SceneDelegate, it does nothing. Well, it can print something, but it doesn't change anything. SceneDelegate:
// App launched
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()
self.window = window
window.makeKeyAndVisible()
getURL(urlContext: connectionOptions.urlContexts)
}
// App opened from background
func scene(_ scene: UIScene, openURLContexts URLContexts: Set<UIOpenURLContext>) {
getURL(urlContext: URLContexts)
}
// Get URL
private func getURL(urlContext: Set<UIOpenURLContext>) {
guard let urlContexts = urlContext.first(where: { $0.url.scheme == "app-deeplink" }) else { return }
print(urlContexts.url)
print("success")
let viewController = ViewController()
viewController.cameFromWidget()
}
Function in ViewController that changes labels text:
func cameFromWidget() {
label.text = "Hello"
print(label.text)
}
WidgetExtension:
var body: some View {
Text(entry.date, style: .time)
.widgetURL(URL(string: "app-deeplink://app"))
}
So ViewController func just prints the text but doesn't change it when I call it from SceneDelegate.
My widget link is only in WidgetExtension and SceneDelegate, I didn't add it to infoPlist.
My question: Why does it work but does nothing? Maybe I should add it to some file?
Thank you so much!

Answer 1

I found out. To make some changes in your viewController you need to make it with rootViewController:
private func getURL(urlContext: Set<UIOpenURLContext>) {
guard let urlContexts = urlContext.first(where: { $0.url.scheme == "app-deeplink" }) else { return }
print(urlContexts.url)
print("success")
let rootViewController = window?.rootViewController as? ViewController
rootViewController?.cameFromWidget()
}