java - OptionalPendingResult 总是抛出 IllegalStateException，原因为 "Result has already been consumed"

Question

我正在尝试实现 Google 登录，以便使用电子钱包或付款，并向用户销售产品。我按照 the official guide 中的步骤操作我什至克隆了这个项目，它和我有同样的问题。问题是，当我尝试从 OptionalPendingResult 获取用户信息时，系统抛出一个 IllegalStateException。

首先，用户必须通过使用以这种方式初始化的 GoogleApiClient 的 Activity:

@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_checkout);
    ButterKnife.bind(this);

    setSupportActionBar(toolbar);

    mGoogleApiClient = new GoogleApiClient.Builder(this)
            .addApi(Wallet.API, new Wallet.WalletOptions.Builder().build())
            .build();

    showProgressDialog();

    itemInfo = getIntent().getParcelableExtra(Constants.EXTRA_ITEM_INFO);

}

之后，我在一个没有 GoogleApiClient 的 Activity 托管的 fragment 中显示了一个 com.google.android.gms.common.SignInButton，我正在 fragment :

public class LoginFragment extends Fragment implements GoogleApiClient.ConnectionCallbacks,
        GoogleApiClient.OnConnectionFailedListener {
    public static final int REQUEST_CODE_PICK_ACCOUNT = 1000;
    public static final int REQUEST_CODE_RESOLVE_ERR = 1005;
    public static final int REQUEST_CODE_SIGN_IN = 1006;
    private static final String TAG = "LoginFragment";
    private static final String WALLET_SCOPE = "https://www.googleapis.com/auth/payments.make_payments";
    private static final String WALLET_SANDBOX_SCOPE = "https://www.googleapis.com/auth/paymentssandbox.make_payments";

    @Bind(R.id.sign_in_button)com.google.android.gms.common.SignInButton button;

    private ProgressDialog mProgressDialog;
    private GoogleApiClient mGoogleApiClient;
    private int mLoginAction;
    private String userEmail;

    public static LoginFragment newInstance(int intentCode) {
        LoginFragment fragment = new LoginFragment();
        Bundle args = new Bundle();
        args.putInt(LoginActivity.EXTRA_ACTION, intentCode);
        fragment.setArguments(args);
        return fragment;
    }

    public LoginFragment() {}

    @Override public void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        Bundle args = getArguments();
        if (args != null) {
            mLoginAction = args.getInt(LoginActivity.EXTRA_ACTION);
        }

        if(savedInstanceState != null) {
            userEmail = savedInstanceState.getString("email");
        }

        GoogleSignInOptions gso = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
                .requestEmail()
                .requestProfile()
                .requestScopes(new Scope(WALLET_SCOPE))
//                .requestIdToken(getString(R.string.client_id_test))
                .build();


        mGoogleApiClient = new GoogleApiClient.Builder(getActivity())
                .addApi(Auth.GOOGLE_SIGN_IN_API, gso)
                .build();

    }

    @Override public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container,
                                       @Nullable Bundle savedInstanceState) {
        super.onCreateView(inflater, container, savedInstanceState);
        View v = inflater.inflate(R.layout.fragment_login, container, false);
        ButterKnife.bind(this, v);
        button.setSize(SignInButton.SIZE_WIDE);

        if(savedInstanceState != null && userEmail.isEmpty())
            userEmail = savedInstanceState.getString("email");
        button.setClickable(true);    
        return v;
    }

    @Override public void onStart() {
        super.onStart();
        mGoogleApiClient.connect();
    }

    @Override public void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        outState.putString("email", userEmail);
    }

    @Override public void onStop() {
        super.onStop();
        mGoogleApiClient.disconnect();
    }

    @Override public void onActivityResult(int requestCode, int resultCode, Intent data) {
        switch (requestCode) {
            case REQUEST_CODE_SIGN_IN:
                logIn(data);
                button.setClickable(true);
                break;

            case REQUEST_CODE_PICK_ACCOUNT:
                if (resultCode == Activity.RESULT_OK) {
                    userEmail = data.getStringExtra(AccountManager.KEY_ACCOUNT_NAME);
                    getUsername();
                } else if (resultCode == Activity.RESULT_CANCELED) {
                    showToast(getString(R.string.please_select_account));
                }

            default:
                super.onActivityResult(requestCode, resultCode, data);
                break;
        }
    }

    @Override public void onDestroyView() {
        super.onDestroyView();
        ButterKnife.unbind(this);
        mGoogleApiClient = null;
    }

    @OnClick(R.id.sign_in_button) public void onSignIn() {
        if(button.isClickable()) {    
            button.setClickable(false);
            Intent intent = Auth.GoogleSignInApi.getSignInIntent(mGoogleApiClient);
            startActivityForResult(intent, REQUEST_CODE_SIGN_IN);
        }
    }

    @Override public void onConnected(@Nullable Bundle bundle) {
        if (mLoginAction == LoginActivity.Action.LOGOUT) {
            logOut();
        }
    }

    @Override public void onConnectionSuspended(int i) {}

    @Override public void onConnectionFailed(@NonNull ConnectionResult connectionResult) {
        Log.e(TAG, "onConnectionFailed, error code:" + connectionResult.getErrorCode());

        switch (connectionResult.getErrorCode()) {
            case ConnectionResult.SERVICE_DISABLED:
                showToast(getString(R.string.error_gps_service_disabled));
                break;

            case ConnectionResult.SERVICE_INVALID:
                showToast(getString(R.string.error_gps_service_invalid));
                break;

            case ConnectionResult.SERVICE_VERSION_UPDATE_REQUIRED:
                showToast(getString(R.string.error_gps_service_update));
                break;

        }
    }

    private void showToast(String message) {
        Toast.makeText(getActivity(), "Failed: " + message, Toast.LENGTH_SHORT).show();
    }

    private void logIn(Intent data) {    
        OptionalPendingResult<GoogleSignInResult> opr = Auth.GoogleSignInApi.silentSignIn(mGoogleApiClient);
        if (opr.isDone()) {
            try {
                GoogleSignInResult signInResult = opr.get();
                GoogleSignInAccount gsa = signInResult.getSignInAccount();

                Toast.makeText(getActivity(), getString(R.string.welcome_user, gsa.getDisplayName()),
                        Toast.LENGTH_LONG).show();

                ((MultaJustaApp) getActivity().getApplication()).login(gsa.getEmail(), gsa.getIdToken());

                success = true;
            } catch (IllegalStateException e) {
                e.printStackTrace();
                showToast(getString(R.string.error_sign_in));
            }


        } else {
            showToast(getString(R.string.network_error));
        }

        if(success) {
            getActivity().setResult(Activity.RESULT_OK);
            getActivity().finish();
        }
    }
}

值得一提的是，在创建 opr 之后，当我在观察变量上检查它时，它有一个 Status{statusCode=INTERNAL_ERROR, resolution=null} 属性，当然还有 opr.get() 被调用 IllegalStateException 被抛出，因为 Result 已被消耗。我已经尝试了所有方法，在我的控制台中启用了 API， keystore 的校验和已启动，并且 apiClient 在请求时已连接。我在模拟器和物理设备上都遇到了问题。我很绝望。我真的很感激任何帮助。

我的 OAth 客户端 ID:

谢谢

Answer 1

首先，你不应该得到 IllegalStateException 除非你在 isDone() 之前调用 opr.get() 或多次调用它(不管它是失败还是成功的结果): https://developers.google.com/android/reference/com/google/android/gms/common/api/OptionalPendingResult.html#get()您能否仔细检查您的代码/在此处粘贴您的确切代码？

其次，INTERNAL_ERROR 最常见的问题是缺少正确的 OAuth2 客户端注册。 (不幸的是，目前状态代码是 INTERNAL_ERROR 8，这没有帮助。)例如看看这个线程: Occured an INTERNAL_ERROR when requestEmail from GoogleSignInOptions Android .由于您已经添加了电子钱包范围，如果缺少 OAuth2 注册，您将在同意对话框中看到“未注册的 Android 应用程序”。 (我在最后附上了截图)

第三，使用 enableAutoManage 可以节省大量样板代码。请查看官方文档: https://developers.google.com/identity/sign-in/android/sign-in(例如，您的 onConnectionFailed 处理程序中的所有错误处理， connect()/disconnect() 都将被自动调用)。并且可以在您的 onActivityResult 中调用 Auth.GoogleSignInApi.silentSignIn()。但获得结果的更简单方法是:

GoogleSignInResult result = Auth.GoogleSignInApi.getSignInResultFromIntent(data);