我将如何使用Firebase创建用户名？

问题描述

我还是新手，用Xcode和Firebase编码。我已经能够创建一个注册和登录页面与Firebase身份验证。我一直在想如何让人们创建自定义的唯一用户名。我一直在网上寻找一段时间，我找不到。

我想学习如何在我的应用程序中实现用户名，以便用户可以创建唯一的用户名和自己的配置文件。

解决方案

  let currentUserId = FIRAuth.auth（）？。currentUser？.uid 
 let currentUserRef = FIRDatabase.database（）。reference（withPath：MainDataBase / users） .child（currentUserId！）// MainDataBase / users  - 是你数据库的一部分
 
 currentUserRef.observeSingleEvent（of：.value，with：{snapshot in 
 self.userInfo = UserItem（snapshot ：快照）
 self.label.text =Welcome+（self.userInfo.login）！//例如它将显示登录
}）
  
 
祝您好运 
 
 
 编辑：有这样的东西：
  var userInfo：UserItem！ {
 didSet {
 self.label.text =Welcome+（self.userInfo.login）！ //例如它将显示登录
 //其他操作
} 
  
 
I am still new to swift and coding with Xcode and using Firebase. I have been able to create a sign up and login page with Firebase authentication. I have been wondering how would I allow people to create custom unique usernames. I have been searching for a while now on the web and I can't find much.
I want to learn how to implement usernames with in my app so users can create unique usernames and have their own profiles.
 解决方案 
In addition to my comment.
let currentUserId = FIRAuth.auth()?.currentUser?.uid
let currentUserRef = FIRDatabase.database().reference(withPath: "MainDataBase/users").child(currentUserId!) // MainDataBase/users - is part from you database

currentUserRef.observeSingleEvent(of: .value, with: { snapshot in
        self.userInfo = UserItem(snapshot: snapshot)
        self.label.text = "Welcome " + (self.userInfo.login)!  // for example it will show login
    })
Good luck
EDIT:Its better to have something like this: 
var userInfo: UserItem! {
    didSet {
        self.label.text = "Welcome " + (self.userInfo.login)!  // for example it will show login
        // other actions
    }
                        
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