Facebook/Google在Android应用程序上注册Firebase

第一次开发Android应用程序。当登录FaceBook和Google时，我正在尝试在Firebase中注册用户

到目前为止，我已经用电子邮件和密码登录。 使用Facebook和Google登录

问题是：你是否必须在firebase中注册用户（当从google和facebook登录时）才能创建一个个人资料，例如图片

代码的这个范围是在我们项目的一个片段上实现的：

onCreateView

GoogleSignInOptions gso = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
                .requestIdToken(getString(R.string.google_credential))
                .requestEmail()
                .build();
        //
        mGoogleApiClient = new GoogleApiClient.Builder(getActivity())
                .enableAutoManage(getActivity(), new GoogleApiClient.OnConnectionFailedListener() {
                    @Override
                    public void onConnectionFailed(@NonNull ConnectionResult connectionResult) {

                    }
                })
                .addApi(Auth.GOOGLE_SIGN_IN_API, gso)
                .build();

private void signIn() {
        Intent signInIntent = Auth.GoogleSignInApi.getSignInIntent(mGoogleApiClient);
        startActivityForResult(signInIntent, RC_SIGN_IN);
    }

    @Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);

        // Result returned from launching the Intent from GoogleSignInApi.getSignInIntent(...);
        if (requestCode == RC_SIGN_IN) {
            Task<GoogleSignInAccount> task = GoogleSignIn.getSignedInAccountFromIntent(data);
            try {
                // Google Sign In was successful, authenticate with Firebase
                GoogleSignInAccount account = task.getResult(ApiException.class);
                firebaseAuthWithGoogle(account);
            } catch (ApiException e) {
                // Google Sign In failed, update UI appropriately
                Log.w(TAG, "Google sign in failed", e);
                // ...
            }
        }
    }
    private void firebaseAuthWithGoogle(GoogleSignInAccount acct) {
        Log.d("MainACtivity", "firebaseAuthWithGoogle:" + acct.getId());

        AuthCredential credential = GoogleAuthProvider.getCredential(acct.getIdToken(), null);
        firebaseAuth.signInWithCredential(credential)
                .addOnCompleteListener(getActivity(), new OnCompleteListener<AuthResult>() {
                    @Override
                    public void onComplete(@NonNull Task<AuthResult> task) {
                        Log.d("Main", "signInWithCredential:onComplete:" + task.isSuccessful());

                        // 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()) {
                            Log.w("MainAcitivyt", "signInWithCredential", task.getException());
                            Toast.makeText(getActivity(), "Authentication failed.",
                                    Toast.LENGTH_SHORT).show();
                        }
                        // ...
                    }
                });
    }

在onCreateView之外

GoogleSignInOptions gso = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
                .requestIdToken(getString(R.string.google_credential))
                .requestEmail()
                .build();
        //
        mGoogleApiClient = new GoogleApiClient.Builder(getActivity())
                .enableAutoManage(getActivity(), new GoogleApiClient.OnConnectionFailedListener() {
                    @Override
                    public void onConnectionFailed(@NonNull ConnectionResult connectionResult) {

                    }
                })
                .addApi(Auth.GOOGLE_SIGN_IN_API, gso)
                .build();

private void signIn() {
        Intent signInIntent = Auth.GoogleSignInApi.getSignInIntent(mGoogleApiClient);
        startActivityForResult(signInIntent, RC_SIGN_IN);
    }

    @Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);

        // Result returned from launching the Intent from GoogleSignInApi.getSignInIntent(...);
        if (requestCode == RC_SIGN_IN) {
            Task<GoogleSignInAccount> task = GoogleSignIn.getSignedInAccountFromIntent(data);
            try {
                // Google Sign In was successful, authenticate with Firebase
                GoogleSignInAccount account = task.getResult(ApiException.class);
                firebaseAuthWithGoogle(account);
            } catch (ApiException e) {
                // Google Sign In failed, update UI appropriately
                Log.w(TAG, "Google sign in failed", e);
                // ...
            }
        }
    }
    private void firebaseAuthWithGoogle(GoogleSignInAccount acct) {
        Log.d("MainACtivity", "firebaseAuthWithGoogle:" + acct.getId());

        AuthCredential credential = GoogleAuthProvider.getCredential(acct.getIdToken(), null);
        firebaseAuth.signInWithCredential(credential)
                .addOnCompleteListener(getActivity(), new OnCompleteListener<AuthResult>() {
                    @Override
                    public void onComplete(@NonNull Task<AuthResult> task) {
                        Log.d("Main", "signInWithCredential:onComplete:" + task.isSuccessful());

                        // 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()) {
                            Log.w("MainAcitivyt", "signInWithCredential", task.getException());
                            Toast.makeText(getActivity(), "Authentication failed.",
                                    Toast.LENGTH_SHORT).show();
                        }
                        // ...
                    }
                });
    }

---

<> <强> >在Auth

中对火炮标志进行编码时要考虑的事项 遵循Github回购协议中涵盖的流程，您可以查看回购协议中的一些工作示例活动

您还需要在Firebase控制台中启用Facebook和Google登录。另一个重要的一点是确保每次使用Firebase控制台进行更改时都使用最新的google-services.json文件

最后，确保在Firebase控制台中的Firebase项目中安装了所需的调试和发布SHA1指纹设置，以便在应用程序进入Play store时与Firebase服务连接

访问您的Firebase注册用户帐户

登录Firebase控制台

转到Firebase项目并在左侧菜单中选择“身份验证”

它将显示一个带有用户名、ID和身份验证详细信息的用户选项卡

有关更多信息，请参阅Firebase文档

您是否必须在firebase中注册用户（从google登录时） 和facebook）创建个人资料，例如使用 照片

对于GoogleSing-In，可以使用来自Google帐户的配置文件图像和更多元数据

Github Quickstart上的Google登录方法和Facebook登录方法示例会自动添加新用户，如果他们是第一次登录Firebase项目。您可以尝试添加一个新用户，并在Firebase身份验证用户选项卡上看到它被添加。见下文：

---

您还可以为用户提供注销和删除其登录帐户的功能，这也包含在文档和Github示例中。

您不必手动向Firebase注册用户，它会自动存储该信息，您可以在Firebase控制台上的

身份验证

选项卡中看到该信息。在应用程序内部，您可以从

FirebaseAuth.getInstance（）.getCurrentUser（）

访问当前登录的用户。