Question

嘿，我正在尝试使用Google登录在Firebase上进行登录。我的问题是，当我要连接时，该应用程序不会向我显示包含所有可用电子邮件的电子邮件菜单，并且它进行连接时无法设置多个帐户。

我在下面发布我的代码：

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

        Btn_Sign = (SignInButton) findViewById(R.id.sign);
        mAuth = FirebaseAuth.getInstance();

        GoogleSignInOptions gso = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
                .requestIdToken(getString(R.string.default_web_client_id))
                .requestEmail()
                .build();

        GoogleSignInOptions SignInOptions = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN).requestEmail().build();
        googleApiClient = new GoogleApiClient.Builder(this).enableAutoManage(this, this).addApi(Auth.GOOGLE_SIGN_IN_API, SignInOptions).build();
         mGoogleSignInClient = GoogleSignIn.getClient(this, gso);


        Btn_Sign.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                signIn();
            }
        });

    }

    private void signIn() {
        Intent signInIntent = mGoogleSignInClient.getSignInIntent();
        startActivityForResult(signInIntent, CODE);
    }

    @Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (requestCode == CODE) {
            Task<GoogleSignInAccount> task = GoogleSignIn.getSignedInAccountFromIntent(data);
            try {

                GoogleSignInAccount account = task.getResult(ApiException.class);
                firebaseAuthWithGoogle(account);
            } catch (ApiException e) {
                Toast.makeText(MainActivity.this, "error", Toast.LENGTH_SHORT).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()) {
                            Intent start = new Intent(MainActivity.this, Main2Activity.class);
                            startActivity(start);
                        } else {
                            Log.e(TAG, "signInWithCredential:failure", task.getException());
                        }
                    }
                });
    }

    @Override
    public void onConnectionFailed(@NonNull ConnectionResult connectionResult) {

    }

感谢您的回答。

Answer 1

如果您希望始终显示对话框，则需要在登录之前断开用户连接您可以使用此代码

GoogleSignIn.getClient(getActivity(), GoogleSignInUser.getGoogleSignInOptions(getActivity())).signOut()
                .addOnCompleteListener(getActivity(), new OnCompleteListener<Void>() {
                    @Override
                    public void onComplete(@android.support.annotation.NonNull Task<Void> task) {
                        GoogleSignIn.getClient(getActivity(), GoogleSignInUser.getGoogleSignInOptions(getActivity())).revokeAccess()
                                .addOnCompleteListener(getActivity(), new OnCompleteListener<Void>() {
                                    @Override
                                    public void onComplete(@NonNull Task<Void> task) {
                                        //do what you want
                                    }
                                })
                                .addOnCanceledListener(new OnCanceledListener() {
                                    @Override
                                    public void onCanceled() {
                                        //do what you want
                                    }
                                });
                    }
                });

Google不显示电子邮件菜单

1 个答案: