swift4 创建用户信息名称、年龄并从火力基地获取数据

Question

我已经创建了 firebase，登录和注册后一切顺利，我可以也存储图像，但无法取回存储在 firebase 中的图像，我想创建用户个人资料来存储用户的姓名和年龄，

登录成功，使用 Firebase 存储图像，并创建了实时数据库子项，例如图像用户名和年龄，但无法在我的应用程序中使用，创建用户配置文件时出现问题，以及从 Firebase 存储取回图像时出现问题。

import UIKit
import FirebaseAuth
import Firebase
import FirebaseStorage

class ViewController: UIViewController,UIImagePickerControllerDelegate,UINavigationControllerDelegate {
    var ref : DatabaseReference?

    @IBOutlet weak var emailTextField: UITextField!
    @IBOutlet weak var passwordTextField: UITextField!
    @IBOutlet weak var myImage: UIImageView!
    @IBOutlet weak var userName: UITextField!
    @IBOutlet weak var ageTextField: UITextField!

override func viewDidLoad() {
    super.viewDidLoad()
// get image from firebase
   // imagesFolder.

   // let imageBack = Database.database().reference().child("images").child("user")

   // self.myImage.image = UIImage(data: data!)

 // creating dataBase
    ref = Database.database().reference()

    if Auth.auth().currentUser != nil {
        ref?.child("images").child("username").setValue(["name":"first", "age":28])
    }

}
@IBAction func loginButtonPressed(_ sender: UIButton) {
}

// signUp Button pressed
@IBAction func signUpButtonPressed(_ sender: UIButton) {
    Auth.auth() .createUser(withEmail: emailTextField!.text!, password: passwordTextField!.text!) {(user,error)
    in
        if user != nil
        {
            self.performSegue(withIdentifier: "goToHome", sender: self)
            print("SignUp Sucessfull")
        }
        else {
            print("unSucessfull")
            // uiAlert
            let alert = UIAlertController(title:"wrong Information", message: nil, preferredStyle: .alert)
            let okButton = UIAlertAction(title: "ok", style: .default, handler: nil)
            alert.addAction(okButton)
            self.present(alert,animated: true,completion: nil)
            print("login Failed")
        }
        guard let userName = self.userName.text,!userName.isEmpty else {
            print("Email is Empty");return
        }
        guard let userAge = self.ageTextField.text,!userAge.isEmpty else {
            print("Age is required"); return
        }
}
    // upload image data to firebase
    let imagesFolder = Storage.storage().reference().child("images")
    if let image =  myImage.image {

        if let imageData = image.jpegData(compressionQuality: 0.75) {
        imagesFolder.child("\(NSUUID().uuidString).jpg").putData(imageData, metadata: nil,completion: { (metadata,error) in

            if let error = error {                  
                // alert notification
    }
            // putData(_:metadata:completion:)
        })                
    }
}

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Answer 1

我自己找到了答案，供以后的程序员引用! //存储的用户信息

  let userID = Auth.auth().currentUser?.uid
        let userData = ["userName": userName,
            "userAge ": userAge] as [String? : Any]


        let ref = Database.database().reference()
        ref.child("users/\(userID ?? "")").setValue(userData)



}

现在要检索数据，请创建一个结构并将代码放入已加载的 View 中

 func fetchCurrentUserData() {   
    guard let currentUid = Auth.auth().currentUser?.uid else { return }

    let userRef = Database.database().reference().child("users").child(currentUid)

    print("userRef: \(userRef)")

    userRef.observeSingleEvent(of: .value) { (snapshot) in
        guard let dictionary = snapshot.value as? Dictionary<String, AnyObject> else { return }
        let uid = snapshot.key
        let user = User(uid: uid, dictionary: dictionary)
        self.user = user
        print(snapshot.key)

    }
}