Firebase登录和用户名注册 [英] Firebase login and signup with username

问题描述

我目前使用AndroidHive的教程，了解如何使用Firebase，我现在开始了解方法和文档 - 我意识到Firebase提供了一个包含电子邮件和密码的注册/登录方法，并且这一信息不是存储在我们的数据库中。

我想实现一个系统，当他们注册时，他们提供他们的电子邮件，密码和用户名以及其他一些数据，保存到数据库。以便用户可以用他们的电子邮件或用户名登录。我发现这篇文章的堆栈显然是回答这个问题我问 - 但是，我不完全明白这一点，以及它如何链接我的代码

<$ p $新的OnCompleteListener< AuthResult>（）{
@Override
public void onComplete（@）{code> auth.createUserWithEmailAndPassword（email，password）
.addOnCompleteListener（SignupActivity.this， NonNull Task< AuthResult>任务）{
Toast.makeText（SignupActivity.this，createUserWithEmail：onComplete：+ task.isSuccessful（），Toast.LENGTH_SHORT）.show（）;
progressBar.setVisibility View.GONE）;

if（！task.isSuccessful（））{
Toast.makeText（SignupActivity.this，Authentication failed。+ task.getException（），
Toast.LENGTH_SHORT）.show（）;
} else {
startActivity（new Intent（SignupActivity.thi s，MainActivity.class））;
finish（）;
}
}
}）;

非常感谢任何帮助

  auth.createUserWithEmailAndPassword（email，password）
。解决方案

（@NonNull Task< AuthResult>任务）{
Toast.makeText（SignupActivity.this，） createUserWithEmail：onComplete：+ task.isSuccessful（），Toast.LENGTH_SHORT）.show（）;
progressBar.setVisibility（View.GONE）;
generateUser（email，password）

if（！task.isSuccessful（））{
Toast.makeText（SignupActivity.this，Authentication failed。+ task.getException（），
Toast.LENGTH_SHORT）.show（）;
} else {
startActivity（new Intent（SignupActivity.this，MainActivity.class））;
finish（）;
}
}
}）;


这是上面调用的方法。

  public void generateUser（String username，String password）
 {
 
 FirebaseDatabase database = FirebaseDatabase.getInstance（）; 
 DatabaseReference users = database.getReference（users）; //用户是您的Firebase数据库中的一个节点。 
用户用户=新用户（用户名，密码）; // ObjectClass for Users 
 users.push（）。setValue（user）; 
 
 
 
 
 
 $ b  User.class   
 
 
  public class User {
 
 String username; 
字符串密码; 
 $ b $ public User（）{
 //空构造函数对于Firebase 
} 
 
 $ b $公共用户（字符串用户名，字符串密码）
 {
 this.username = username; //为Program-Inhouse对象进行参数化。 
 this.password = password; 
} 
 
 // Getters and Setters 
 public String getUsername（）
 {
 return username; 
} 
 public void setUsername（String username）
 {
 this.username = username; 
 
 public String getPassword（）
 {
 return password; 
} 
 public void setPassword（String password）
 {
 this.password = password; 
} 
} 
  
 
I am currently using AndroidHive's tutorial to learn how to use Firebase, I am starting to understand the methods and documentation well now - I realised that Firebase offers a signup/sign-in method with email and password, and that this piece of information is not stored in our database.

I would like to implement a system where when they sign up they provide their email,password and a username along with some other data and it all gets saved to the database. So that the user can then signin with their email or username. I found this article on stack which apparently is the answer to this question I am asking - However, I do not fully understand this and how it links with my code below
auth.createUserWithEmailAndPassword(email, password)
.addOnCompleteListener(SignupActivity.this, new OnCompleteListener<AuthResult>() {
@Override
public void onComplete(@NonNull Task<AuthResult> task) {
    Toast.makeText(SignupActivity.this, "createUserWithEmail:onComplete:" + task.isSuccessful(), Toast.LENGTH_SHORT).show();
    progressBar.setVisibility(View.GONE);

    if (!task.isSuccessful()) {
        Toast.makeText(SignupActivity.this, "Authentication failed." + task.getException(),
            Toast.LENGTH_SHORT).show();
    } else {
        startActivity(new Intent(SignupActivity.this, MainActivity.class));
        finish();
    }
}
});
Any help is much appreciated thanks
解决方案
Try this:
auth.createUserWithEmailAndPassword(email, password)
.addOnCompleteListener(SignupActivity.this, new OnCompleteListener<AuthResult>() {
@Override
public void onComplete(@NonNull Task<AuthResult> task) {
    Toast.makeText(SignupActivity.this, "createUserWithEmail:onComplete:" + task.isSuccessful(), Toast.LENGTH_SHORT).show();
    progressBar.setVisibility(View.GONE);
    generateUser(email, password)

    if (!task.isSuccessful()) {
        Toast.makeText(SignupActivity.this, "Authentication failed." + task.getException(),
            Toast.LENGTH_SHORT).show();
    } else {
        startActivity(new Intent(SignupActivity.this, MainActivity.class));
        finish();
    }
}
});
This is the method that is being called above. 
public void generateUser(String username, String password)
{

FirebaseDatabase database = FirebaseDatabase.getInstance();
DatabaseReference users = database.getReference("users"); //users is a node in your Firebase Database.
User user = new User(username, password); //ObjectClass for Users
users.push().setValue(user);

}
Also: 
User.class
   public class User {

    String username;
    String password;

    public User() {
    //Empty Constructor For Firebase
    }


public User(String username, String password)
        {
        this.username = username; //Parameterized for Program-Inhouse objects.
        this.password = password;
        }

    //Getters and Setters
    public String getUsername()
    {
    return username;
    }
    public void setUsername(String username)
    {
    this.username = username;
    }
    public String getPassword()
    {
    return password;
    }
    public void setPassword(String password)
    {
    this.password = password;
    }
}


                        
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