AppDelegate.swift

import UIKit
import Flutter
import app_links

@UIApplicationMain
@objc class AppDelegate: FlutterAppDelegate {
    
  override func application(
    _ application: UIApplication,
    didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
  ) -> Bool {
    GeneratedPluginRegistrant.register(with: self)

    if let url = AppLinks.shared.getLink(launchOptions: launchOptions) {
      // We have a link, propagate it to your Flutter app
      AppLinks.shared.handleLink(url: url)
      return true
    }

    super.application(application, didFinishLaunchingWithOptions: launchOptions)
    return false
  }


  override func application(_ application: UIApplication,
                  continue userActivity: NSUserActivity,
                  restorationHandler: @escaping ([any UIUserActivityRestoring]?) -> Void) -> Bool {
    if userActivity.activityType == NSUserActivityTypeBrowsingWeb {
      let url = userActivity.webpageURL
      AppLinks.shared.handleLink(url: url!)
      return true
    }
    return false
  }

  override func application(
    _ app: UIApplication,
    open url: URL,
    options: [UIApplication.OpenURLOptionsKey : Any] = [:]
  ) -> Bool {
    AppLinks.shared.handleLink(url: url)
    return true    
  }
}