如何向 Firebase 身份验证添加额外字段？年龄和性别

Question

到目前为止，Firebase 给我留下了深刻的印象。但我想知道如何自定义我的用户电子邮件身份验证。我想添加以下字段：Age 和 Gender 供用户在注册时填写。 p>

这是我的 SignUpActivity.java。

public class SignUpActivity extends AppCompatActivity {
private EditText inputEmail, inputPassword, signupInputUsername, signupInputAge;
private Button btnLinkLogin, btnSignUp, btnResetPassword;
private ProgressBar progressBar;
private FirebaseAuth auth;
private Spinner sexSpinner;
String defaultTextForSpinner = "Sex";
String[] arrayForSpinner = {"Male", "Female"};


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

    //Get Firebase auth instance
    auth = FirebaseAuth.getInstance();

    inputEmail = (EditText) findViewById(R.id.signup_input_email);
    signupInputUsername = (EditText) findViewById(R.id.signup_input_username);
    inputPassword = (EditText) findViewById(R.id.signup_input_password);
    signupInputAge = (EditText) findViewById(R.id.signup_input_birthday);
    sexSpinner = (Spinner)findViewById(R.id.spinner);
    sexSpinner.setAdapter(new CustomSpinnerAdapter(this, R.layout.spinner_row, arrayForSpinner, defaultTextForSpinner));

    btnSignUp = (Button) findViewById(R.id.btnSignUp2);
    btnLinkLogin = (Button) findViewById(R.id.btnorlogin);
    progressBar = (ProgressBar) findViewById(R.id.progressBar);
    EditText edittext = (EditText) findViewById(R.id.signup_input_birthday);


    edittext.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
            //To show current date in the datepicker
            Calendar mcurrentDate = Calendar.getInstance();
            int mYear = mcurrentDate.get(Calendar.YEAR);
            int mMonth = mcurrentDate.get(Calendar.MONTH);
            int mDay = mcurrentDate.get(Calendar.DAY_OF_MONTH);

            DatePickerDialog mDatePicker=new DatePickerDialog(SignUpActivity.this, new DatePickerDialog.OnDateSetListener() {
                public void onDateSet(DatePicker datepicker, int selectedyear, int selectedmonth, int selectedday) {
                    // TODO Auto-generated method stub
                /*      Your code   to get date and time    */
                }
            },mYear, mMonth, mDay);
            mDatePicker.setTitle("Select birthday");
            mDatePicker.show();  }
    });


    btnSignUp.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {

            String email = inputEmail.getText().toString().trim();
            String password = inputPassword.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 (password.length() < 6) {
                Toast.makeText(getApplicationContext(), "Password too short, enter minimum 6 characters.", Toast.LENGTH_SHORT).show();
                return;
            }

            progressBar.setVisibility(View.VISIBLE);
            //create user
            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 sign in fails, display a message to the user. If sign in succeeds
                            // the auth state listener will be notified and logic to handle the
                            // signed in user can be handled in the listener.
                            if (!task.isSuccessful()) {
                                Toast.makeText(SignUpActivity.this, "Authentication failed." + task.getException(),
                                        Toast.LENGTH_SHORT).show();
                            } else {
                                startActivity(new Intent(SignUpActivity.this, MainActivity.class));
                                finish();
                            }
                        }
                    });

        }
    });
}

@Override
protected void onResume() {
    super.onResume();
    progressBar.setVisibility(View.GONE);
}

public class CustomSpinnerAdapter extends ArrayAdapter<String> {

    Context context;
    String[] objects;
    String firstElement;
    boolean isFirstTime;

    public CustomSpinnerAdapter(Context context, int textViewResourceId, String[] objects, String defaultText) {
        super(context, textViewResourceId, objects);
        this.context = context;
        this.objects = objects;
        this.isFirstTime = true;
        setDefaultText(defaultText);
    }

    @Override
    public View getDropDownView(int position, View convertView, ViewGroup parent) {
        if(isFirstTime) {
            objects[0] = firstElement;
            isFirstTime = false;
        }
        return getCustomView(position, convertView, parent);
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        notifyDataSetChanged();
        return getCustomView(position, convertView, parent);
    }

    public void setDefaultText(String defaultText) {
        this.firstElement = objects[0];
        objects[0] = defaultText;
    }

    public View getCustomView(int position, View convertView, ViewGroup parent) {

        LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        View row = inflater.inflate(R.layout.spinner_row, parent, false);
        TextView label = (TextView) row.findViewById(R.id.spinner_text);
        label.setText(objects[position]);

        return row;
    }

}

Answer 1

当您使用带有用户名和密码的 Firebase 身份验证时，您在身份验证后可以获取的唯一数据是您从 FirebaseUser 对象获取的数据。正如您可能看到的，还有一些方法可以帮助您更轻松地获取数据，例如：getEmail()、getDisplayName()、getPhotoUrl() 等等。

很遗憾，您无法将 age 和 gender 等其他数据添加到 FirebaseUser 对象。如果您想添加额外的数据，您需要为您的用户创建一个模型类，然后将其存储在您的 Firebase 数据库中。

你的模型类应该是这样的：

public class User {
    String name, gender, emailAddress;
    int age;

    public User(String name, String gender, String emailAddress, int age) {
        this.name = name;
        this.gender = gender;
        this.emailAddress = emailAddress;
        this.age = age;
    }

    public String getName() {return name;}
    public void setName(String name) {this.name = name;}

    public String getGender() {return gender;}
    public void setGender(String gender) {this.gender = gender;}

    public String getEmailAddress() {return emailAddress;}
    public void setEmailAddress(String emailAddress) {this.emailAddress = emailAddress;}

    public int getAge() {return age;}
    public void setAge(int age) {this.age = age;}
}

Answer 2

一般来说，注册后，您可以为用户喜欢的图片创建一个节点树。 然后，您可以通过调用 FirebaseUser 获取带有用户密钥的信息。 我希望它有所帮助。如果您有任何问题，请告诉我。

Answer 3

抱歉耽搁了，但我正在寻找如何存储更大的自定义数据 - 这是不可能的，但我是这样做的。

在 displayName (Javascript) 中存储少量额外数据。

result.user.updateProfile({
    displayName: gender + '|' + sex + '|' + username
})
.then(function () {
    console.log(`Profile updated.`);

要检索数据，只需拆分 displayName (Node.js)：

        return admin.auth().getUser(uid)
    })
    .then(userRecord => {
        displayName = userRecord.getDisplayName();

        parts = String(user.displayName).split('|');

        gender = parts[0];
        sex = parts[1];
        username = parts[2];

Answer 4

注册新用户后，您将从 Firebase 收到用户生成的 uuid，此时您需要获取 uuid 并使用您提供的 uuid 在 Firestore 存储库/实时数据库中创建新用户条目，并且附加信息。