Question

我已将Firebase添加到我的Android项目中。我已创建createUserWithEmailAndPassword()来验证电子邮件和密码。现在，我还要求在创建新帐户时将用户名存储在Firebase数据库中。

我在线阅读，onAuthenticated(AuthData authData)用于存储用户名。但是，请指导我在哪里实际放置onAuthenticated(AuthData authData)方法，以便在电子邮件和电子邮件中调用它。密码验证完成。

目前，我已将这两种方法都放在private void UserSignUp()中，当点击注册按钮时调用这些方法。谢谢。下面给出的是代码：

 @Override
protected void onCreate(Bundle savedInstanceState)
{
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_sign_up);

    emailid=(EditText)findViewById(R.id.emailText);
    username=(EditText)findViewById(R.id.usernameText);
    pwd=(EditText)findViewById(R.id.passwordText);
    signup=(Button)findViewById(R.id.signupbutton);

    signup.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            UserSignUp();
        }
    });

}

private void UserSignUp()
{
    firebaseAuth = FirebaseAuth.getInstance();

    email = emailid.getText().toString().trim();
    password  = pwd.getText().toString().trim();
    uname = username.getText().toString().trim();

    if (TextUtils.isEmpty(email)) {
        Toast.makeText(getApplicationContext(), "Enter Email address", Toast.LENGTH_SHORT).show();
        return;
    }

    if (TextUtils.isEmpty(password)) {
        Toast.makeText(getApplicationContext(), "Enter password", Toast.LENGTH_SHORT).show();
        return;
    }

    if (TextUtils.isEmpty(uname)) {
        Toast.makeText(getApplicationContext(), "Enter username", Toast.LENGTH_SHORT).show();
        return;
    }

    if (uname.length() < 5) {
        Toast.makeText(getApplicationContext(), "Invalid: Username must be greater than 5 characters", Toast.LENGTH_SHORT).show();
        return;
    }

    if (password.length() < 8) {
        Toast.makeText(getApplicationContext(), "Invalid: Password must be greater than 8 characters", Toast.LENGTH_SHORT).show();
        return;
    }

    firebaseAuth.createUserWithEmailAndPassword(email, password)
            .addOnCompleteListener(this, new OnCompleteListener<AuthResult>()
            {
                @Override
                public void onComplete(@NonNull Task<AuthResult> task)
                {
                    if(task.isSuccessful())
                    {
                        Toast.makeText(SignUpActivity.this,"Successfully registered",Toast.LENGTH_LONG).show();
                    }
                    else
                    {
                        Toast.makeText(SignUpActivity.this,"Registration Error",Toast.LENGTH_LONG).show();
                    }
                }
            });

  Firebase.AuthResultHandler authResultHandler=new Firebase.AuthResultHandler()
    {
        @Override
        public void onAuthenticated(AuthData authData)
        {
            firebaseRef = new Firebase(FIREBASE_URL);

            Map<String, String> map = new HashMap<String, String>();
            map.put("email", email);
            map.put("username", uname);
            map.put("provider", authData.getProvider());

            firebaseRef.child("users").child(authData.getUid()).setValue(map);
        }

        @Override
        public void onAuthenticationError(FirebaseError firebaseError)
        {

        }
    };
}

Answer 1

以您的命名为例：

您可以在onCreate中或在调用createUserWithEmailAndPassword之前（例如在onCreate中）附加名为authResultHandler的AuthResultHandler。您还应该将auth listener注册为一个字段，以便以后能够引用它（取消注册）。

Firebase.AuthResultHandler authResultHandler=new Firebase.AuthResultHandler()
{ 
    @Override 
    public void onAuthenticated(AuthData authData)
    { 
        firebaseRef = new Firebase(FIREBASE_URL); 

        Map<String, String> map = new HashMap<String, String>();
        map.put("email", email);
        map.put("username", uname);
        map.put("provider", authData.getProvider());

        firebaseRef.child("users").child(authData.getUid()).setValue(map);
    } 

    @Override 
    public void onAuthenticationError(FirebaseError firebaseError)
    { 

    } 
}; 

firebaseAuth.addAuthStateListener(authResultHandler);

您还需要在onDestroy中取消注册您的监听器：

@Override
public void onDestroy() {
    super.onDestroy();
    if (this.firebaseAuth != null) {
        firebaseAuth.removeAuthStateListener(authResultHandler);
    }
}

这应该足以让你走上正确的道路。

Android Firebase - 在注册活动中添加onAuthenticated（AuthData authData）的位置？

1 个答案: