Question

据我所知，所有Facebook和Firebase连接都是链接的，所有代码都应该正常运行。但是，即使从Facebook登录，身份验证仍然无法通过Firebase。

我的代码： ActMain.java

public class ActMain extends AppCompatActivity {

private FirebaseAuth fAuth;

/* Facebook */
private CallbackManager mCallbackManager;
private static final String TAG = ActMain.class.getSimpleName();

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

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

    // Initialize Facebook Login button
    mCallbackManager = CallbackManager.Factory.create();
    LoginButton loginButton = findViewById(R.id.login_button);
    loginButton.setReadPermissions("email", "public_profile");
    loginButton.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);
        }
    });
}

/* Facebook */
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);

    // Pass the activity result back to the Facebook SDK
    mCallbackManager.onActivityResult(requestCode, resultCode, data);
}

private void handleFacebookAccessToken(AccessToken token)
{
    Log.d(TAG, "handleFacebookAccessToken:" + token);

    AuthCredential credential = FacebookAuthProvider.getCredential(token.getToken());
    fAuth.signInWithCredential(credential)
            .addOnCompleteListener(this, new OnCompleteListener<AuthResult>()
            {
                @Override
                public void onComplete(@NonNull Task<AuthResult> task)
                {
                    if (task.isSuccessful())
                    {
                        // Sign in success, update UI with the signed-in user's information
                        Log.d(TAG, "signInWithCredential:success");
                        FirebaseUser user = fAuth.getCurrentUser();
                        updateUI(user);
                    }
                    else
                    {
                        // If sign in fails, display a message to the user.
                        Log.w(TAG, "signInWithCredential:failure", task.getException());
                        Toast.makeText(ActMain.this, "Authentication failed.", Toast.LENGTH_SHORT).show();
                    }
                }
            });
}
}

我完全迷失在以前继续工作的地方。我可能会做一些非常小的事情，但由于这会导致身份验证失败吗？

Answer 1

获取当前包的hashkey并将其放在fb开发者控制台上。然后这将有效。

Answer 2

我有相同的错误，但是问题是我试图在Facebook和google上使用相同的电子邮件登录，因此该电子邮件对于每个用户应该是唯一的。

Facebook帐户登录后，使用Facebook登录的Firebase身份验证失败

2 个答案: