Question

我正在为我的Android应用使用Firebase身份验证。用户可以使用多个提供商（Google，Facebook，Twitter）登录。

成功登录后，有没有办法使用Firebase API从这些提供商处获取用户性别/出生日期？

Answer 1

不幸的是，Firebase没有任何内置功能可以在成功登录后获得用户的性别/生日。您必须自己从每个提供程序中检索这些数据。

从Google获取用户性别的方法

rank()

您可以在Accessing Google APIs

上找到更多信息

Answer 2

对于Facebook：

从firebase获取facebook accessToken非常简单。我正在使用firebase auth UI。使用Facebook验证后，您将从firebase用户对象获取基本信息，如显示名称，电子邮件，提供商详细信息。但如果你想要更多的信息，如性别，生日facebook图谱API是解决方案。一旦用户通过Facebook进行身份验证，您就可以获得这样的访问令牌。

AccessToken.getCurrentAccessToken（）但有时它会给你NULL值而不是有效的访问令牌。确保在此之前已经初始化了facebook SDK。

public class MyApplication extends Application {
  @Override
  public void onCreate() {
     super.onCreate();
     FacebookSdk.sdkInitialize(this);
  }

} 初始化后使用graphAPI

if(AccessToken.getCurrentAccessToken()!=null) {

    System.out.println(AccessToken.getCurrentAccessToken().getToken());

    GraphRequest request = GraphRequest.newMeRequest(
            AccessToken.getCurrentAccessToken(),
            new GraphRequest.GraphJSONObjectCallback() {
                @Override
                public void onCompleted(JSONObject object, GraphResponse response) {
                    // Application code
                    try {
                        String email = object.getString("email");
                        String gender = object.getString("gender");
                    } catch (JSONException e) {
                        e.printStackTrace();
                    }
                }
            });
    Bundle parameters = new Bundle();
    parameters.putString("fields", "id,name,email,gender,birthday");
    request.setParameters(parameters);
    request.executeAsync();

}
else
{
    System.out.println("Access Token NULL");
}

快乐编码：）

Answer 3

与使用Google的People API类访问其REST服务相比，我发现直接访问服务要简单得多。

还节省了1.5 MB的APK大小。

  public static final String USER_BIRTHDAY_READ = "https://www.googleapis.com/auth/user.birthday.read";
  public static final String USER_PHONENUMBERS_READ = "https://www.googleapis.com/auth/user.phonenumbers.read";
  public static final String USERINFO_EMAIL = "https://www.googleapis.com/auth/userinfo.email";
  public static final String USERINFO_PROFILE = "https://www.googleapis.com/auth/userinfo.profile";

  public JSONObject getUserinfo(@NotNull Context context, @NotNull GoogleSignInAccount acct) {

    try {
      String token = GoogleAuthUtil.getToken(context, acct.getAccount(), "oauth2: " +USERINFO_PROFILE+" "+USER_PHONENUMBERS_READ+" "+USERINFO_EMAIL+" "+USER_BIRTHDAY_READ);

      URL url = new URL("https://people.googleapis.com/v1/people/me?"
              +"personFields=genders,birthdays,phoneNumbers,emailAddresses"
              +"&access_token=" + token);
      HttpURLConnection con = (HttpURLConnection) url.openConnection();
      int sc = con.getResponseCode();
      if (sc == 200) {
        InputStream is = con.getInputStream();
        JSONObject profile = new JSONObject(readStream(is));
        Log.d(TAG, "Got:" + profile.toString(2));
        Log.d(TAG, "genders: "+profile.opt("genders"));
        Log.d(TAG, "birthdays: "+profile.opt("birthdays"));
        Log.d(TAG, "phoneNumbers: "+profile.opt("phoneNumbers"));
        return profile;
      } else if (sc == 401) {
        GoogleAuthUtil.clearToken(context, token);
        Log.d("Server auth fejl, prøv igen\n" + readStream(con.getErrorStream()));
      } else {
        Log.d("Serverfejl: " + sc);
      }
  } catch (UserRecoverableAuthException recoverableException) {
    startActivityForResult(recoverableException.getIntent(), 1234);
  } catch (Exception e) {
    e.printStackTrace();
  }

  public static String readStream(InputStream is) throws IOException {
    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    byte[] data = new byte[2048];
    int len = 0;
    while ((len = is.read(data, 0, data.length)) >= 0) {
      bos.write(data, 0, len);
    }
    is.close();
    return new String(bos.toByteArray(), "UTF-8");
  }

输出很容易解析为JSON：

genders: [{"metadata":{"primary":true,"source":{"type":"PROFILE","id":"101628018970026223117"}},"value":"male","formattedValue":"Male"}]
birthdays:  [{"metadata":{"primary":true,"source":{"type":"PROFILE","id":"101628018970026223117"}},"date":{"year":1985,"month":3,"day":5}},{"metadata":{"source":{"type":"ACCOUNT","id":"101628018970026223117"}},"date":{"year":1985,"month":3,"day":5}}]

Answer 4

不，您无法直接获取这些数据。但您可以使用用户的ID并从各种提供程序获取这些数据。请检查这些提供商的公共API中可用的数据，例如google刚刚弃用了peopleApi中的一些方法。

无论如何，这是我为facebook做的事情

// Initialize Firebase Auth
FirebaseAuth mAuth = FirebaseAuth.getInstance();

// Create a listener
FirebaseAuth.AuthStateListener mAuthListener = firebaseAuth -> {
        FirebaseUser user = firebaseAuth.getCurrentUser();
        if (user != null) {
            // User is signed in
            Log.d(TAG, "onAuthStateChanged:signed_in:" + user.getUid());
        } else {
            // User is signed out
            Log.d(TAG, "onAuthStateChanged:signed_out");
        }

        if (user != null) {
            Log.d(TAG, "User details : " + user.getDisplayName() + user.getEmail() + "\n" + user.getPhotoUrl() + "\n"
                    + user.getUid() + "\n" + user.getToken(true) + "\n" + user.getProviderId());

            String userId = user.getUid(); 
            String displayName = user.getDisplayName();
            String photoUrl = String.valueOf(user.getPhotoUrl());
            String email = user.getEmail();

            Intent homeIntent = new Intent(LoginActivity.this, HomeActivity.class);
            startActivity(homeIntent);
            finish();
        }
    };

//Initialize the fB callbackManager
mCallbackManager = CallbackManager.Factory.create();

在FB登录按钮的onClick中执行以下操作

LoginManager.getInstance().registerCallback(mCallbackManager,
            new FacebookCallback<LoginResult>() {
                @Override
                public void onSuccess(LoginResult loginResult) {
                    Log.d(TAG, "facebook:onSuccess:" + loginResult);
                    handleFacebookAccessToken(loginResult.getAccessToken());
                }

                @Override
                public void onCancel() {
                    Log.d(TAG, "facebook:onCancel");
                }

                @Override
                public void onError(FacebookException error) {
                    Log.d(TAG, "facebook:onError", error);
                }
            });

LoginManager.getInstance().logInWithReadPermissions(this, Arrays.asList("public_profile", "email"));

Firebase Auth获取其他用户信息（年龄，性别）

4 个答案: