SwiftUI Facebook 登录按钮对话框仍然打开？

Posted 2023-03-17

【中文标题】SwiftUI Facebook 登录按钮对话框仍然打开？

【英文标题】：SwiftUI Facebook login button dialog still open?

【发布时间】：2021-04-18 11:14:17

【问题描述】：

我正在尝试在我的项目中实现 facebook 登录按钮，一切都很好，但是从 Facebook 返回后的对话框仍然打开而不是关闭。我认为它与 URL 应用程序委托相关的东西不会触发，因为我使用的是没有场景委托的 SwiftUI。

完美的登录功能：

fileprivate func facebookLogin()
    
    let fbLoginManager = LoginManager()
        fbLoginManager.logIn(permissions: ["public_profile", "email"], from: Tools.topViewController()! )
          (result, error) in
            
            if ( result != nil && (result?.isCancelled)! )
            
                print("[LOGIN][FACEBOOK] cancecled by User")
                return
            
            
            if  result != nil && (result?.grantedPermissions != nil)
            
                print("[LOGIN][FACEBOOK] grantedPermissions")
                
                if((AccessToken.current) != nil)
                
                    GraphRequest(graphpath: "me", parameters: ["fields": "id, name, first_name, last_name, email"]).start(completionHandler:  (connection, result, error) -> Void in
                        
                        if (error == nil)
                        
                            
                            print("[LOGIN][FACEBOOK SUCCESS] \(String(describing: result))")
                            
                            var fb_result = result as! [String : Any]
                            
                            let name = fb_result["name"] as! String
               
                        else
                        
                            print("[LOGIN][FACEBOOK ERROR] \(String(describing: error))")
                        
                        
                    )
                    
                else
                //Something went Wrong !
                
                    print("[LOGIN][FACEBOOK ERROR] Something went wrong! #1")
                
                
            
            //Something went Wrong !
            else
                
            
            
        

应用：

@main
struct LW_APP: App 

    @Environment(\.scenePhase) var scenePhase

   
    
    var body: some Scene 
        WindowGroup 
            
            w_landingTabs()
      
        
        .onChange(of: scenePhase)  (newScenePhase) in
            switch newScenePhase 
            case .background:
                print("[APP] State : Background")
            case .inactive:
                print("[APP] State : Inactive")
            case .active:
                print("[APP] State : Active")
           
            @unknown default:
                print("[APP] State : Unknown")
            
        
    
    

应用委托：

import UIKit
import FBSDKCoreKit

let APP_DELEGATE:APP_delegate = UIApplication.shared.delegate as! APP_delegate

class APP_delegate: UIResponder, UIApplicationDelegate 
    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey : Any]? = nil) -> Bool 
        
        ApplicationDelegate.shared.application(
                  application,
                  didFinishLaunchingWithOptions: launchOptions
              )
        
        print("[APP DELEGATE] MyAppDelegate didFinishLaunchingWithOptions called")
        return true
    
    
    func application(_ app: UIApplication, open url: URL, options: [UIApplication.OpenURLOptionsKey : Any] = [:]) -> Bool 
        print("[APP DELEGATE] options: [UIApplication.OpenURLOptionsKey : Any] ")
            return ApplicationDelegate.shared.application(app, open: url, options: options)
    
    
    func applicationDidBecomeActive(_ application: UIApplication) 
        print("[APP DELEGATE] applicationDidBecomeActive")
        AppEvents.activateApp()
    
  

登录后返回时卡住的屏幕：

【参考方案1】：

我找到了解决这个问题的唯一方法。

这部分代码：

let _ = ApplicationDelegate.shared.application(
                            UIApplication.shared,
                            open: url,
                            sourceApplication: nil,
                            annotation: [UIApplication.OpenURLOptionsKey.annotation])

必须在 onOpenURL 中添加 SwiftUI 视图，在我的情况下，我这样做了：

@main
struct LW_APP: App 
    
    @UIApplicationDelegateAdaptor(APP_delegate.self) private var appDelegate
    @Environment(\.scenePhase) var scenePhase

        var body: some Scene 
            WindowGroup 
                
                if Env.sharedInstance.openApp 
                    w_landingTabs()
                        .environmentObject(env)
                        .onOpenURL  (url) in
                     
                            let _ = ApplicationDelegate.shared.application(
                                UIApplication.shared,
                                open: url,
                                sourceApplication: nil,
                                annotation: [UIApplication.OpenURLOptionsKey.annotation])
                            
                    
    .....