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java - 在 Android 中使用 Firestore 仅使用用户名和密码进行身份验证

问题描述

我是android和firebase的新手。我正在创建一个用户登录或注册的测验应用程序，然后测验开始。最后，用户的分数和其他所有的分数都以升序显示。我希望用户仅使用用户名和密码进行注册和登录。该项目已连接到 Firebase。目前，登录和注册页面中的用户凭据仅存储在字符串变量中。我想使用自定义身份验证和 Firestore。我正在关注官方文档firebase.google.com/docs/auth/android/custom-auth?authuser=0. 我对使用 Firebase 进行身份验证的第 3 步感到困惑。我是否从注册表单中获取凭据并将它们发送到像 AuthO 这样的身份验证服务器，它会给出一个令牌？您能告诉我在收到凭据后立即分步做什么吗？我已经allow read, write: if request.auth.uid != null;为firestore设置了安全规则。我是否必须先将其连接到 Firestore 并存储身份验证过程的凭据并最终使用它？

如果提供代码片段和指向有用文档的链接，那将非常有帮助。

下面给出了用于登录和注册页面的 java 文件。

谢谢你。

对于登录页面

package com.guesstasif.guesswhat;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.content.Intent;
import android.view.inputmethod.EditorInfo;
import android.widget.EditText;
import android.widget.TextView;
import android.view.KeyEvent;
import android.widget.TextView.OnEditorActionListener;

public class MainActivity extends AppCompatActivity {

public static String name;
public static String password;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);



    EditText nameText = findViewById(R.id.nameText);

    nameText.setOnEditorActionListener(new OnEditorActionListener() {
        @Override
        public boolean onEditorAction(TextView nameText, int actionId, KeyEvent event) {
            boolean handled = false;
            if (actionId == EditorInfo.IME_ACTION_SEND || event.getKeyCode() == KeyEvent.KEYCODE_ENTER && event.getAction() == KeyEvent.ACTION_DOWN) {
                name = nameText.getText().toString();
                handled = true;
            }
            return handled;
        }
    });

    EditText passwordText = findViewById(R.id.passwordText);

    passwordText.setOnEditorActionListener(new OnEditorActionListener() {
        @Override
        public boolean onEditorAction(TextView passwordText, int actionId, KeyEvent event) {
            boolean handled = false;
            if (actionId == EditorInfo.IME_ACTION_SEND || event.getKeyCode() == KeyEvent.KEYCODE_ENTER && event.getAction() == KeyEvent.ACTION_DOWN) {
                password = passwordText.getText().toString();
                handled = true;
            }
            return handled;
        }
    });

}

//OnClick of Start button
public void startQuizz(View view){
    Intent p1 = new Intent(this, qPage1.class);
    startActivity(p1);
}

//OnClick to register
public void register(View view){
    Intent signup = new Intent(this, Signup.class);
    startActivity(signup);
}

}

用于登录页面的 xml 文件

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/sign_in"
tools:context=".MainActivity">

<EditText
    android:id="@+id/nameText"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentTop="true"
    android:layout_centerHorizontal="true"
    android:layout_marginTop="181dp"
    android:width="300dp"
    android:backgroundTint="@color/colorPrimaryDark"
    android:hint="@string/name_input"
    android:imeActionId="10"
    android:imeOptions="actionSend"
    android:inputType="text"
    android:textColorLink="@color/colorPrimaryDark" />

<EditText
    android:id="@+id/passwordText"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentTop="true"
    android:layout_centerHorizontal="true"
    android:layout_marginTop="255dp"
    android:width="300dp"
    android:backgroundTint="@color/colorPrimaryDark"
    android:hint="Enter your password"
    android:imeActionId="10"
    android:imeOptions="actionSend"
    android:inputType="textPassword"
    android:textColorLink="@color/colorPrimaryDark" />

<Button
    android:id="@+id/start_button"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentBottom="true"
    android:layout_centerHorizontal="true"
    android:layout_marginBottom="45dp"
    android:background="@color/colorPrimary"
    android:onClick="startQuizz"
    android:text="START"
    android:textColor="@android:color/background_light" />

<TextView
    android:id="@+id/registerText"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentBottom="true"
    android:layout_centerHorizontal="true"
    android:layout_marginBottom="140dp"
    android:clickable="true"
    android:onClick="register"
    android:text="Did not register?"
    android:textSize="24sp" />

对于注册页面

package com.guesstasif.guesswhat;

import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.View;
import android.view.inputmethod.EditorInfo;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.TextView.OnEditorActionListener;


public class Signup extends AppCompatActivity {


    public static String signup_name;
    public static String signup_password;
    public static String signup_confirm_password;


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

        EditText sign_up_nameText = findViewById(R.id.sign_up_nameText);

        sign_up_nameText.setOnEditorActionListener(new OnEditorActionListener() {
            @Override
            public boolean onEditorAction(TextView sign_up_nameText, int actionId, KeyEvent event) {
                boolean handled = false;
                if (actionId == EditorInfo.IME_ACTION_SEND || event.getKeyCode() == android.view.KeyEvent.KEYCODE_ENTER && event.getAction() == android.view.KeyEvent.ACTION_DOWN) {
                    signup_name = sign_up_nameText.getText().toString();
                    handled = true;
                }
                return handled;
            }
        });


        EditText sign_up_passwordText = findViewById(R.id.sign_up_passwordText);

        sign_up_passwordText.setOnEditorActionListener(new OnEditorActionListener() {
            @Override
            public boolean onEditorAction(TextView sign_up_passwordText, int actionId, KeyEvent event) {
                boolean handled = false;
                if (actionId == EditorInfo.IME_ACTION_SEND || event.getKeyCode() == KeyEvent.KEYCODE_ENTER && event.getAction() == KeyEvent.ACTION_DOWN) {
                    signup_password = sign_up_passwordText.getText().toString();
                    handled = true;
                }
                return handled;
            }
        });

        EditText sign_up_confirm_passwordText = findViewById(R.id.sign_up_confirm_passwordText);

        sign_up_confirm_passwordText.setOnEditorActionListener(new OnEditorActionListener() {
            @Override
            public boolean onEditorAction(TextView sign_up_confirm_passwordText, int actionId, KeyEvent event) {
                boolean handled = false;
                if (actionId == EditorInfo.IME_ACTION_SEND || event.getKeyCode() == KeyEvent.KEYCODE_ENTER && event.getAction() == KeyEvent.ACTION_DOWN) {
                    signup_confirm_password = sign_up_confirm_passwordText.getText().toString();
                    handled = true;
                }
                return handled;
            }
        });

    }

    public void beginQuizz(View view){
        Intent p1 = new Intent(this, qPage1.class);
        startActivity(p1);
    }
}

用于唱歌的 xml 文件

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@drawable/sign_in"
    tools:context=".Signup">

    <EditText
        android:id="@+id/sign_up_nameText"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="181dp"
        android:width="300dp"
        android:backgroundTint="@color/colorPrimaryDark"
        android:hint="@string/name_input"
        android:imeActionId="10"
        android:imeOptions="actionSend"
        android:inputType="text"
        android:textColorLink="@color/colorPrimaryDark" />

    <EditText
        android:id="@+id/sign_up_passwordText"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="251dp"
        android:width="300dp"
        android:backgroundTint="@color/colorPrimaryDark"
        android:hint="Enter new password"
        android:imeActionId="10"
        android:imeOptions="actionSend"
        android:inputType="textPassword"
        android:textColorLink="@color/colorPrimaryDark" />

    <EditText
        android:id="@+id/sign_up_confirm_passwordText"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="325dp"
        android:width="300dp"
        android:backgroundTint="@color/colorPrimaryDark"
        android:hint="Confirm password"
        android:imeActionId="10"
        android:imeOptions="actionSend"
        android:inputType="textPassword"
        android:textColorLink="@color/colorPrimaryDark" />

    <Button
        android:id="@+id/Done_button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_centerHorizontal="true"
        android:layout_marginBottom="57dp"
        android:onClick="beginQuizz"
        android:text="Start" />

</RelativeLayout>

标签： javaandroidfirebasefirebase-authenticationgoogle-cloud-firestore

解决方案

使用 firebase normal auth 进行身份验证。此链接将对您有所帮助https://firebase.google.com/docs/auth/android/password-auth

之后，您可以获得 Firebase 实时数据库支持。首先，您需要获取一个从 Firebase 身份验证过程生成的唯一 ID。您可以从中获取它作为用户 ID。然后使用具有该唯一 ID 的 firebase 实时数据库来存储您的用户相关数据 https://firebase.google.com/docs/database/android/start/此链接将有助于配置实时数据库。根据您的数据使用情况创建适当的实时数据库结构。

如果您按照这种流程存储您的数据，您不需要托管任何外部服务器。按照这个

https://firebase.google.com/docs/database/ios/structure-data。它将有助于创建更有效的实时数据库

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