com.google.firebase.auth.AuthCredential Java Examples

@Override
public void fillResult(AuthCredential credential, JSObject jsResult) {
    GoogleSignInAccount account = GoogleSignIn.getLastSignedInAccount(this.plugin.getContext());
    if (account != null)  {
        jsResult.put("idToken", account.getIdToken());
    } else {
        Log.w(GOOGLE_TAG, "Ops, there was not last signed in account on google api.");
    }
}
 

@ReactMethod
public void googleLogin(String IdToken, final Callback callback) {
    mAuth = FirebaseAuth.getInstance();

    AuthCredential credential = GoogleAuthProvider.getCredential(IdToken, null);
    mAuth.signInWithCredential(credential)
            .addOnCompleteListener(new OnCompleteListener<AuthResult>() {
                @Override
                public void onComplete(@NonNull Task<AuthResult> task) {
                  if (task.isSuccessful()) {
                      FirestackAuthModule.this.user = task.getResult().getUser();
                      userCallback(FirestackAuthModule.this.user, callback);
                  }else{
                      // userErrorCallback(task, callback);
                  }
                }
            }).addOnFailureListener(new OnFailureListener() {
          @Override
          public void onFailure(@NonNull Exception ex) {
            userExceptionCallback(ex, callback);
          }
        });
}
 

public void linkAndMerge(AuthCredential credential) {
    FirebaseAuth mAuth = FirebaseAuth.getInstance();

    // [START auth_link_and_merge]
    FirebaseUser prevUser = FirebaseAuth.getInstance().getCurrentUser();
    mAuth.signInWithCredential(credential)
            .addOnCompleteListener(new OnCompleteListener<AuthResult>() {
                @Override
                public void onComplete(@NonNull Task<AuthResult> task) {
                    FirebaseUser currentUser = task.getResult().getUser();
                    // Merge prevUser and currentUser accounts and data
                    // ...
                }
            });
    // [END auth_link_and_merge]
}
 

private void firebaseAuthWithGoogle(final GoogleSignInAccount account) {
    AuthCredential mCredential = GoogleAuthProvider.getCredential(account.getIdToken(), null);
    mFirebaseAuth.signInWithCredential(mCredential)
            .addOnCompleteListener(new OnCompleteListener<AuthResult>() {
                @Override
                public void onComplete(@NonNull Task<AuthResult> task) {
                    if (task.isSuccessful()) {
                        String email = account.getEmail();
                        String name = account.getDisplayName();
                        String userID = mFirebaseAuth.getCurrentUser().getUid();
                        boolean newUser = task.getResult().getAdditionalUserInfo().isNewUser();
                        addNewUser(email, name, "", userID, newUser);
                    } else {
                        Log.w(TAG, task.getException().toString());
                        Toast.makeText(SigninActivity.this, task.getException().toString(), Toast.LENGTH_SHORT)
                                .show();
                    }
                }
            });
}
 

public void handleGoogleSignInResult(GoogleSignInResult result) {
    ifViewAttached(view -> {
        if (result.isSuccess()) {
            view.showProgress();

            GoogleSignInAccount account = result.getSignInAccount();

            view.setProfilePhotoUrl(buildGooglePhotoUrl(account.getPhotoUrl()));

            AuthCredential credential = GoogleAuthProvider.getCredential(account.getIdToken(), null);
            view.firebaseAuthWithCredentials(credential);

            LogUtil.logDebug(TAG, "firebaseAuthWithGoogle:" + account.getId());

        } else {
            LogUtil.logDebug(TAG, "SIGN_IN_GOOGLE failed :" + result);
            view.hideProgress();
        }
    });
}
 

@ReactMethod
public void facebookLogin(String Token, final Callback callback) {
    mAuth = FirebaseAuth.getInstance();

    AuthCredential credential = FacebookAuthProvider.getCredential(Token);
    mAuth.signInWithCredential(credential)
            .addOnCompleteListener(new OnCompleteListener<AuthResult>() {
                @Override
                public void onComplete(@NonNull Task<AuthResult> task) {
                  if (task.isSuccessful()) {
                      FirestackAuthModule.this.user = task.getResult().getUser();
                      userCallback(FirestackAuthModule.this.user, callback);
                  }else{
                      // userErrorCallback(task, callback);
                  }
                }
            }).addOnFailureListener(new OnFailureListener() {
          @Override
          public void onFailure(@NonNull Exception ex) {
            userExceptionCallback(ex, callback);
          }
        });
}
 

private void firebaseAuthWithGoogle(GoogleSignInAccount acct) {

        mPrgrsbrMain.setVisibility(View.VISIBLE);

        LogManager.printLog(LOGTYPE_INFO, "signInWithGoogleId: " + acct.getId());

        AuthCredential credential = GoogleAuthProvider.getCredential(acct.getIdToken(), null);
        mFireAuth.signInWithCredential(credential)
                .addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
                    @Override
                    public void onComplete(@NonNull Task<AuthResult> task) {

                        LogManager.printLog(LOGTYPE_DEBUG, "signInWithCredential:onComplete:" + task.isSuccessful());

                        if (!task.isSuccessful()) {

                            mPrgrsbrMain.setVisibility(View.GONE);
                            Log.w(LOG_TAG, "signInWithCredential", task.getException());
                            Snackbar.make(mCrdntrlyot, "Authentication failed.\n" + task.getException().getMessage(),
                                    Snackbar.LENGTH_LONG).show();
                        } else
                            successLoginGetData(task);
                    }
                });
    }
 

private void firebaseAuthWithGoogle(GoogleSignInAccount acct) {
    Log.d(TAG, "firebaseAuthWithGoogle:" + acct.getId());

    final AuthCredential credential = GoogleAuthProvider.getCredential(acct.getIdToken(), null);
    mAuth.signInWithCredential(credential)
            .addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
                @Override
                public void onComplete(@NonNull Task<AuthResult> task) {
                    Log.d(TAG, "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(TAG, "signInWithCredential", task.getException());
                        Toast.makeText(LoginActivity.this, "Authentication failed.",
                                Toast.LENGTH_SHORT).show();
                    } else {
                        mProgress.dismiss();
                        Snackbar snackbar = Snackbar.make(activity_login_layout, "Login successfully", Snackbar.LENGTH_SHORT);
                        snackbar.show();
                        checkUserExist();
                    }
                }
            });
}
 

@Override
public void signIn(PluginCall call) {
    if (!call.getData().has("data")) {
        call.reject("The auth data is required");
        return;
    }

    JSObject data = call.getObject("data", new JSObject());

    String phone = data.getString("phone", "");
    if (phone.equalsIgnoreCase("null") || phone.equalsIgnoreCase("")) {
        call.reject("The phone number is required");
        return;
    }

    String code = data.getString("verificationCode", "");
    if(code.equalsIgnoreCase("null") || code.equalsIgnoreCase("")) {
        PhoneAuthProvider.getInstance().verifyPhoneNumber
                (phone, 60, TimeUnit.SECONDS, this.plugin.getActivity(), this.mCallbacks);
    } else {
        AuthCredential credential = PhoneAuthProvider.getCredential(this.mVerificationId, code);
        this.mVerificationCode = code;
        plugin.handleAuthCredentials(credential);
    }
}
 

private void firebaseAuthWithGoogle(GoogleSignInAccount acct) {
    AuthCredential credential = GoogleAuthProvider.getCredential(acct.getIdToken(), null);
    firebaseAuth.signInWithCredential(credential)
            .addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
                @Override
                public void onComplete(@NonNull Task<AuthResult> task) {
                    // 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()) {
                        Snackbar.make(linearLayout,"Ocorreu um erro ao conectar", Snackbar.LENGTH_LONG).show();
                    } else {
                        startActivity(new Intent(Loginactivity.this, MainActivity.class));
                        finish();
                    }
                }
            });
}
 

public void handleAuthCredentials(AuthCredential credential) {
    final PluginCall savedCall = getSavedCall();
    if (savedCall == null) {
        Log.d(PLUGIN_TAG, "No saved call on activity result.");
        return;
    }

    if (credential == null) {
        Log.w(PLUGIN_TAG, "Sign In failure: credentials.");
        savedCall.reject("Sign In failure: credentials.");
        return;
    }

    if (this.nativeAuth) {
        nativeAuth(savedCall, credential);
    } else {
        JSObject jsResult = this.build(credential, savedCall);
        savedCall.success(jsResult);
    }
}
 

private void firebaseAuthWithFacebook(AccessToken accessToken) {

        mPrgrsbrMain.setVisibility(View.VISIBLE);

        LogManager.printLog(LOGTYPE_INFO, "signInWithFacebookToken: " + accessToken);

        AuthCredential credential = FacebookAuthProvider.getCredential(accessToken.getToken());
        mFireAuth.signInWithCredential(credential)
                .addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
                    @Override
                    public void onComplete(@NonNull Task<AuthResult> task) {

                        LogManager.printLog(LOGTYPE_DEBUG, "signInWithCredential:onComplete:" + task.isSuccessful());

                        if (!task.isSuccessful()) {

                            mPrgrsbrMain.setVisibility(View.GONE);
                            Log.w(LOG_TAG, "signInWithCredential", task.getException());
                            Snackbar.make(mCrdntrlyot, "Authentication failed.\n" + task.getException().getMessage(),
                                    Snackbar.LENGTH_LONG).show();
                        } else
                            successLoginGetData(task);
                    }
                });
    }
 

private void firebaseAuthWithGoogle(GoogleSignInAccount acct) {
    Log.d(TAG, "firebaseAuthWithGooogle:" + acct.getId());
    AuthCredential credential = GoogleAuthProvider.getCredential(acct.getIdToken(), null);
    mFirebaseAuth.signInWithCredential(credential)
            .addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
                @Override
                public void onComplete(@NonNull Task<AuthResult> task) {
                    Log.d(TAG, "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(TAG, "signInWithCredential", task.getException());
                        Toast.makeText(SignInActivity.this, "Authentication failed.",
                                Toast.LENGTH_SHORT).show();
                    } else {
                        startActivity(new Intent(SignInActivity.this, MainActivity.class));
                        finish();
                    }
                }
            });
}
 

private void firebaseAuthWithGoogle(GoogleSignInAccount acct) {
//        Log.d(TAG, "firebaseAuthWithGoogle:" + acct.getId());

        AuthCredential credential = GoogleAuthProvider.getCredential(acct.getIdToken(), null);
        mAuth.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");
                            checkSignIn();
                        } else {
                            // If sign in fails, display a message to the user.
                            Toast.makeText(LoginActivity.this, "Sign in fails", Toast.LENGTH_LONG).show();
                        }

                    }
                });
    }
 

private void firebaseAuthWithGoogle(GoogleSignInAccount acct) {
    AuthCredential credential = GoogleAuthProvider.getCredential(acct.getIdToken(), null);
    mAuth.signInWithCredential(credential)
            .addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
                @Override
                public void onComplete(@NonNull Task<AuthResult> task) {
                    if (task.isSuccessful()) {
                        FirebaseUser user = mAuth.getCurrentUser();
                        updateUI(user);
                    } else {
                        loginError("Firebase auth failed.");
                        hideProgressView();
                    }
                }
            });
}
 

private void firebaseAuthWithGoogle(GoogleSignInAccount acct) {

        AuthCredential credential = GoogleAuthProvider.getCredential(acct.getIdToken(), null);
        mAuth.signInWithCredential(credential)
                .addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
                    @Override
                    public void onComplete(@NonNull Task<AuthResult> task) {
                        if (task.isSuccessful()) {

                            //take me to main page
                            Toast.makeText(context, "itworked", Toast.LENGTH_SHORT).show();

                            ActivityNavigation.getInstance(SignInActivity.this).takeToRandomTask();

                        } else {

                            Toast.makeText(context, getString(R.string.auth_failed), Toast.LENGTH_SHORT).show();
                        }
                    }
                });
    }
 

private void firebaseAuthWithGoogle(GoogleSignInAccount acct) {
    binding.signInButton.setVisibility(View.GONE);
    binding.progressBar.setVisibility(View.VISIBLE);

    AuthCredential credential = GoogleAuthProvider.getCredential(acct.getIdToken(), null);
    mAuth.signInWithCredential(credential)
            .addOnCompleteListener(this, task -> {
                if (task.isSuccessful()) {
                    viewModel.setLoggedIn(true);
                    // Sign in success, update UI with the signed-in user's information
                    binding.progressBar.setVisibility(View.GONE);
                } else {
                    // If sign in fails, display a message to the user.
                    Toast.makeText(LoginActivity.this, "Authentication failed.",
                            Toast.LENGTH_SHORT).show();
                }

            });
}
 

private void firebaseAuthWithGoogle(GoogleSignInAccount acct) {
    Log.d(TAG, "firebaseAuthWithGooogle:" + acct.getId());
    AuthCredential credential = GoogleAuthProvider.getCredential(acct.getIdToken(), null);
    showProgressDialog(getString(R.string.profile_progress_message));
    mAuth.signInWithCredential(credential)
            .addOnSuccessListener(this, new OnSuccessListener<AuthResult>() {
                @Override
                public void onSuccess(AuthResult result) {
                    handleFirebaseAuthResult(result);
                }
            })
            .addOnFailureListener(this, new OnFailureListener() {
                @Override
                public void onFailure(@NonNull Exception e) {
                    FirebaseCrash.logcat(Log.ERROR, TAG, "auth:onFailure:" + e.getMessage());
                    handleFirebaseAuthResult(null);
                }
            });
}
 

private void handleFacebookAccessToken(AccessToken token) {

        Log.d(TAG, "handleFacebookAccessToken:" + token);

        AuthCredential credential = FacebookAuthProvider.getCredential(token.getToken());
        mAuth.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");
                            updateUI(mAuth.getCurrentUser());
                        } else {
                            // If sign in fails, display a message to the user.
                            Log.w(TAG, "signInWithCredential:failure", task.getException());
                            Toast.makeText(LoginActivity.this, "Authentication failed.",
                                    Toast.LENGTH_SHORT).show();
                        }

                    }
                });
    }
 

private void firebaseAuthWithGoogle(GoogleSignInAccount acct) {
    Log.d(TAG, "firebaseAuthWithGooogle:" + acct.getId());
    AuthCredential credential = GoogleAuthProvider.getCredential(acct.getIdToken(), null);
    mFirebaseAuth.signInWithCredential(credential)
            .addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
                @Override
                public void onComplete(@NonNull Task<AuthResult> task) {
                    Log.d(TAG, "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(TAG, "signInWithCredential", task.getException());
                        Toast.makeText(SignInActivity.this, "Authentication failed.",
                                Toast.LENGTH_SHORT).show();
                    } else {
                        startActivity(new Intent(SignInActivity.this, MainActivity.class));
                        finish();
                    }
                }
            });
}
 

private void firebaseAuthWithGoogle(GoogleSignInAccount acct) {
    Log.d(TAG, "firebaseAuthWithGoogle:" + acct.getId());
    AuthCredential credential = GoogleAuthProvider.getCredential(acct.getIdToken(), null);
    mFirebaseAuth.signInWithCredential(credential)
            .addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
                @Override
                public void onComplete(@NonNull Task<AuthResult> task) {
                    Log.d(TAG, "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(TAG, "signInWithCredential", task.getException());
                        Toast.makeText(SignInActivity.this, "Authentication failed.",
                                Toast.LENGTH_SHORT).show();
                    } else {
                        startActivity(new Intent(SignInActivity.this, MainActivity.class));
                        finish();
                    }
                }
            });
}
 

private void firebaseAuthWithGoogle(GoogleSignInAccount acct) {
    MyLg.d(TAG, "firebaseAuthWithGoogle:" + acct.getId()+" "+acct.getPhotoUrl());
    showProgressDialog();

    AuthCredential credential = GoogleAuthProvider.getCredential(acct.getIdToken(), null);
    mAuth.signInWithCredential(credential)
            .addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
                @Override
                public void onComplete(@NonNull Task<AuthResult> task) {
                    MyLg.d(TAG, "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()) {
                        MyLg.w(TAG, "signInWithCredential");
                        Toas.show(context, "Authentication failed.");
                    }
                    hideProgressDialog();
                }
            });
}
 

private void firebaseAuthWithGoogle(GoogleSignInAccount acct) {

        Log.d(TAG, "firebaseAuthWithGoogle:" + acct.getId());

        showProgressDialog();

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

                        if (!task.isSuccessful()) {
                            Log.w(TAG, "signInWithCredential", task.getException());
                            Toast.makeText(SaveReports.this, "Authentication failed.",
                                    Toast.LENGTH_SHORT).show();
                        }
                        hideProgressDialog();
                    }
                });
    }
 

private void firebaseAuthWithGoogle(GoogleSignInAccount acct) {
        Log.d(TAG, "firebaseAuthWithGoogle:" + acct.getId());

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

                        // ...
                    }
                });
    }
 

public void handleGoogleSignInResult(GoogleSignInResult result) {
    ifViewAttached(view -> {
        if (result.isSuccess()) {
            view.showProgress();

            GoogleSignInAccount account = result.getSignInAccount();

            view.setProfilePhotoUrl(buildGooglePhotoUrl(account.getPhotoUrl()));

            AuthCredential credential = GoogleAuthProvider.getCredential(account.getIdToken(), null);
            view.firebaseAuthWithCredentials(credential);

            LogUtil.logDebug(TAG, "firebaseAuthWithGoogle:" + account.getId());

        } else {
            LogUtil.logDebug(TAG, "SIGN_IN_GOOGLE failed :" + result);
            view.hideProgress();
        }
    });
}
 

private void firebaseAuthWithPlayGames(GoogleSignInAccount acct) {
    Log.d(TAG, "firebaseAuthWithPlayGames:" + acct.getId());

    final FirebaseAuth auth = FirebaseAuth.getInstance();
    AuthCredential credential = PlayGamesAuthProvider.getCredential(acct.getServerAuthCode());
    auth.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 = auth.getCurrentUser();
                        updateUI(user);
                    } else {
                        // If sign in fails, display a message to the user.
                        Log.w(TAG, "signInWithCredential:failure", task.getException());
                        Toast.makeText(MainActivity.this, "Authentication failed.",
                                Toast.LENGTH_SHORT).show();
                        updateUI(null);
                    }

                    // ...
                }
            });
}
 

public void reauthWithLink(String email, String emailLink) {
    FirebaseAuth auth = FirebaseAuth.getInstance();

    // [START auth_reauth_with_link]
    // Construct the email link credential from the current URL.
    AuthCredential credential =
            EmailAuthProvider.getCredentialWithLink(email, emailLink);

    // Re-authenticate the user with this credential.
    auth.getCurrentUser().reauthenticateAndRetrieveData(credential)
            .addOnCompleteListener(new OnCompleteListener<AuthResult>() {
                @Override
                public void onComplete(@NonNull Task<AuthResult> task) {
                    if (task.isSuccessful()) {
                        // User is now successfully reauthenticated
                    } else {
                        Log.e(TAG, "Error reauthenticating", task.getException());
                    }
                }
            });
    // [END auth_reauth_with_link]
}
 

public void rewardUser(AuthCredential credential) {
    // [START ddl_referral_reward_user]
    FirebaseAuth.getInstance().getCurrentUser()
            .linkWithCredential(credential)
            .addOnSuccessListener(new OnSuccessListener<AuthResult>() {
                @Override
                public void onSuccess(AuthResult authResult) {
                    // Complete any post sign-up tasks here.

                    // Trigger the sign-up reward function by creating the
                    // "last_signin_at" field. (If this is a value you want to track,
                    // you would also update this field in the success listeners of
                    // your Firebase Authentication signIn calls.)
                    FirebaseUser user = FirebaseAuth.getInstance().getCurrentUser();
                    DatabaseReference userRecord =
                            FirebaseDatabase.getInstance().getReference()
                                    .child("users")
                                    .child(user.getUid());
                    userRecord.child("last_signin_at").setValue(ServerValue.TIMESTAMP);
                }
            });
    // [END ddl_referral_reward_user]
}
 

public void reauthenticate() {
    // [START reauthenticate]
    FirebaseUser user = FirebaseAuth.getInstance().getCurrentUser();

    // Get auth credentials from the user for re-authentication. The example below shows
    // email and password credentials but there are multiple possible providers,
    // such as GoogleAuthProvider or FacebookAuthProvider.
    AuthCredential credential = EmailAuthProvider
            .getCredential("[email protected]", "password1234");

    // Prompt the user to re-provide their sign-in credentials
    user.reauthenticate(credential)
            .addOnCompleteListener(new OnCompleteListener<Void>() {
                @Override
                public void onComplete(@NonNull Task<Void> task) {
                    Log.d(TAG, "User re-authenticated.");
                }
            });
    // [END reauthenticate]
}
 

public void authWithGithub() {
    FirebaseAuth mAuth = FirebaseAuth.getInstance();

    // [START auth_with_github]
    String token = "<GITHUB-ACCESS-TOKEN>";
    AuthCredential credential = GithubAuthProvider.getCredential(token);
    mAuth.signInWithCredential(credential)
            .addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
                @Override
                public void onComplete(@NonNull Task<AuthResult> task) {
                    Log.d(TAG, "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(TAG, "signInWithCredential", task.getException());
                        Toast.makeText(MainActivity.this, "Authentication failed.",
                                Toast.LENGTH_SHORT).show();
                    }

                    // ...
                }
            });
    // [END auth_with_github]
}