Google不会显示电子邮件菜单

Question

Hy，我正在尝试使用谷歌登录登录firebase。我的问题是，当我要连接时，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，并且它可以进行连接而无需设置多个帐户。

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) {

    }

谢谢你的回答。

Answer 1

如果您希望始终显示您需要在登录前断开用户连接的对话框您可以使用此代码执行此操作

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
                                    }
                                });
                    }
                });