iphone - 方法 'scene(_:openURLContexts:)'未被调用

Question

在 info.plist 文件中，我成功配置了 URL Identifier 和 URL Scheme。我还可以使用自定义 URL 打开应用程序。问题是当应用程序第一次启动时，该方法

func scene(_ scene: UIScene, openURLContexts URLContexts: Set<UIOpenURLContext>) 

没有被调用。

我有一些基于上述方法的依赖功能。因此，当应用程序第一次启动时，我看不到应用程序中的任何内容。

我还在方法中添加了代码

func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
        
        guard let _ = (scene as? UIWindowScene) else { return }
        
        let url = connectionOptions.urlContexts.first?.url
        
    }

但我在这里得到的 url 为 nil。

但是，如果我的应用程序处于后台模式并且我点击了 URL，则上述方法调用成功并且相关功能工作正常。以下是我在 sceneDelegate 中的 scene(_:openURLContexts:) 方法上的代码。

func scene(_ scene: UIScene, openURLContexts URLContexts: Set<UIOpenURLContext>){
        let url = URLContexts.first?.url
        let urlString: String = url!.absoluteString
        
        if let urlComponents = URLComponents(string: urlString),let queryItems = urlComponents.queryItems {
            queryParams = queryItems
        } else {
            print("invalid url")
        }
        
        guard let windowScene = (scene as? UIWindowScene) else { return }


        self.window = UIWindow(windowScene: windowScene)
        //self.window =  UIWindow(frame: UIScreen.main.bounds)

        let storyboard = UIStoryboard(name: "Main", bundle: nil)
        guard let rootVC = storyboard.instantiateViewController(identifier: "LocationViewIdentifier") as? UIViewController else {
            print("ViewController not found")
            return
        }
        let rootNC = UINavigationController(rootViewController: rootVC)
        self.window?.rootViewController = rootNC
        self.window?.makeKeyAndVisible()
    }

谁能告诉我为什么上面的方法第一次没有调用？

Answer 1

也许这会对您的情况有所帮助。

func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
       
    let urlinfo = connectionOptions.urlContexts
    let url = urlinfo.first?.url as! NSURL
  
}

func scene(_ scene: UIScene, openURLContexts URLContexts: Set<UIOpenURLContext*h>) {
       
    let url = URLContexts.first!.url as NSURL

}

更新于2021年6月17日

如果您想使用 Deeplink 和 Universal Link，这就是我的方法。

    //Deeplink or Universial Link Open when app is start.
    func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
                
        // Universial link Open
        if let userActivity = connectionOptions.userActivities.first,
           userActivity.activityType == NSUserActivityTypeBrowsingWeb,
           let urlinfo = userActivity.webpageURL{
            
            print ("Universial Link Open at SceneDelegate on App Start ::::::: \(urlinfo)")
            
        }
        
        //deeplink Open
        if connectionOptions.urlContexts.first?.url != nil {
          let urlinfo = connectionOptions.urlContexts.first?.url
            
            print ("Deeplink Open at SceneDelegate on App Start ::::::: \(String(describing: urlinfo))")

          
        }
        
        guard let _ = (scene as? UIWindowScene) else { return }
    }

    // Universial link Open when app is onPause
    func scene(_ scene: UIScene, continue userActivity: NSUserActivity) {
        
        if userActivity.activityType == NSUserActivityTypeBrowsingWeb,
            let urlinfo = userActivity.webpageURL{
            
            print ("Universial Link Open at SceneDelegate on App Pause  ::::::: \(urlinfo)")
            
        }
    }
    
    // Deeplink Open when app in onPause
    func scene(_ scene: UIScene, openURLContexts URLContexts: Set<UIOpenURLContext>) {
        
        let urlinfo = URLContexts.first?.url
        print ("Deeplink Open on SceneDelegate at App Pause :::::::: \(String(describing: urlinfo))")

    }

谢谢