UIButton 点击​​，Alamofire POST 调用，不执行 Segue 并成功登录 Firebase

Posted 2023-02-24

【中文标题】UIButton 点击​​，Alamofire POST 调用，不执行 Segue 并成功登录 Firebase

【英文标题】：UIButton click, Alamofire POST call, doesnt performSegue with a successful Firebase Login

【发布时间】：2021-04-15 14:28:54

【问题描述】：

我有一个简单的按钮操作

在进入此之前，我会验证电子邮件和密码，但这是我的 Firebase 代码。当您单击按钮时，它将进入VerifyUserInformation 函数，并且响应将吐出。基本上，VerifyUserInformation 中的 segue 不会为我运行，dismiss 功能也不会关闭模态（呈现全屏）。

有什么办法可以解决这个问题？

        Auth.auth().signIn(withEmail: emailOutlet.text!, password: passwordOutlet.text!)  [weak self] user, error in
            guard let strongSelf = self else  return 
            
                if let error = error 
                    self!.displaySnackbar(messageString: "\(error.localizedDescription)")
                    return
                
            
            self!.preferences.setValue(true, forKey:SHARED_PREF_USER_LOGGED_IN_KEY)

            
            var firstTimeUser = self!.preferences.bool(forKey:FIRST_TIME_USER)
            
            print("\(self!.TAG) FirstTimeUser: \(firstTimeUser)")

            if (firstTimeUser) 
                print("\(self!.TAG) This is the first time the user is using the application.")
                self?.VerifyUserInformation(firebaseId: "\(Auth.auth().currentUser!.uid)")
             else 
                print("\(self!.TAG) User can head into the Application.")
                self!.performSegue(withIdentifier: "MainScreen", sender: nil)
                self?.progressBar.isHidden = true
                self!.loginButtonOutlet.isHidden = false
            
            
            
            
        

为了验证用户，我运行了这个函数。

func VerifyUserInformation(firebaseId: String) 
    
    let urlString = ADD_USER_FOR_ACCOUNT
    
    let param = [
       FROM_APP: "true",
       USER_FIREBASE_ID: firebaseId,
       GET_USER_ACCOUNT_INFORMATION: "true"
        ] as [String : Any]
    
    
    AF.request(urlString, method: .post, parameters: param ,encoding: URLEncoding.default).responseJSON 
    response in
      switch response.result 
        case .success:
            print("\(self.TAG)\n***Response***\n\(response)\n***END***")
            if let result = response.value 
                let JSON = result as! NSDictionary

                let errorResponse = JSON["error"] as! Int
                if (errorResponse == 1) 
                    print("\(self.TAG) Error verifying the user.")
                    self.displaySnackbar(messageString: "Error verifying user. Try again.")
                 else 
                    print("\(self.TAG) User is verified")
                    let messageResponse = JSON["message"] as! String
                    if (messageResponse == "user has items") 
                        print("\(self.TAG) User has items, go into MainScreen")
                        DispatchQueue.main.async 
                            DispatchQueue.main.asyncAfter(deadline: .now() + 1.0) 
                                self.performSegue(withIdentifier: "MainScreen", sender: nil)
                                self.dismiss(animated: false, completion: nil)
                                self.preferences.setValue(false, forKey:FIRST_TIME_USER)
                                self.loginButtonOutlet.isHidden = false
                                self.progressBar.isHidden = true
                            
                        
                        
                     else 
                        print("\(self.TAG) User has 0 items, go into Second Onboarding")
                        DispatchQueue.main.async 
                            DispatchQueue.main.asyncAfter(deadline: .now() + 1.0) 
                                self.performSegue(withIdentifier: "SecondOnBoarding", sender: nil)
                                self.dismiss(animated: false, completion: nil)
                                self.loginButtonOutlet.isHidden = false
                                self.progressBar.isHidden = true
                            
                        
                    
                
            
            
            break
        case .failure(let error):
            self.loginButtonOutlet.isHidden = false
            self.progressBar.isHidden = true
            self.displaySnackbar(messageString: "Error getting user information. Try again.")
            print("\(self.TAG) \(error)")
        
    
    
    
    
    

【问题讨论】：

您能否发布您的AF 请求的printDebug(result) 的结果？

【参考方案1】：

删除dismiss()后，它开始工作了。