从Android应用程序中集成的Google Plus注销

我已按照以下教程将Google+集成到android应用中。https://developers.google.com/+/mobile/android/sign-in#add_the_google_sign-in_button_to_your_app http://www.riskcompletefailure.com/2013/03/common-problems-with-google-sign-in-on .html http://www.androidhive.info/2014/02/android-login-with-google-plus-account-1/

我可以登录Google帐户，也可以检索信息。事情是我无法注销。

我在登录活动中登录G +，并使用“共享首选项”存储会话，然后在另一个基本活动中关闭会话，将布尔值传递给有关会话关闭的登录活动。尽管会话未处于活动状态或用户尚未登录，但是只要启动登录活动，登录活动就会自动连接到G +。试图在onConnected上执行逻辑，但无济于事。

以下是我的代码段。

public class LoginActivity extends BaseActionBar implements OnClickListener,
            ConnectionCallbacks, OnConnectionFailedListener {

        private Button btnLogin, btnFgetPwrd, btnRegister;
            // Logcat tag
        private static final String TAG = "LoginActivity";
        // Google Plus
        private static final int GOOGLE_SIGN_IN = 0;
        // Google Plus Profile Data
        String GpersonName, GpersonPhotoUrl, Gemail, googleError, GCustId;
        // Google client to interact with Google API
        private GoogleApiClient mGoogleApiClient;
        private SignInButton btnGooglePlus;

        // A flag indicating that a PendingIntent is in progress and prevents us
        // from starting further intents.
        private boolean mIntentInProgress;
        // Track whether the sign-in button has been clicked so that we know to
        // resolve all issues preventing sign-in without waiting.
        private boolean mSignInClicked;
        private ConnectionResult mConnectionResult;

        // Session Manager Class
        SessionManager session;

        @Override
        protected void onCreate(Bundle savedInstanceState) {
            // TODO Auto-generated method stub
            super.onCreate(savedInstanceState);
            setContentView(R.layout.login);

            // Initializing google plus api client
            mGoogleApiClient = new GoogleApiClient.Builder(this)
                    .addConnectionCallbacks(this)
                    .addOnConnectionFailedListener(this).addApi(Plus.API)
                    .addScope(Plus.SCOPE_PLUS_LOGIN).build();
            // Session Manager
            session = new SessionManager(getApplicationContext());

            if (session.isLoggedIn() == false) {
                Log.v(TAG, "false");
                mSignInClicked = false;
                DataStore.LoginGoogle = false;
                if (mGoogleApiClient.isConnected()) {
                    Plus.AccountApi.clearDefaultAccount(mGoogleApiClient);
                    mGoogleApiClient.disconnect();
                    mGoogleApiClient.connect();
                }
            } else {
                Intent i = new Intent(LoginActivity.this, UserProfileActivity.class);
                startActivity(i);
            }
            btnLogin.setOnClickListener(this);
            btnFgetPwrd.setOnClickListener(this);
            btnRegister.setOnClickListener(this);
            btnGooglePlus.setOnClickListener(this);
        }

        // Facebook and Google Plus
        @Override
        protected void onActivityResult(int requestCode, int responseCode,
                Intent intent) {
            if (requestCode == GOOGLE_SIGN_IN) {
                if (responseCode != RESULT_OK) {
                    mSignInClicked = false;
                }
                mIntentInProgress = false;
                if (!mGoogleApiClient.isConnecting()) {
                    mGoogleApiClient.connect();
                }
            } else if (requestCode == FB_SIGN_IN) {
                Session.getActiveSession().onActivityResult(this, requestCode,
                        responseCode, intent);
            }
        }
        // Google Plus
        protected void onStart() {
            super.onStart();
            mGoogleApiClient.connect();
        }

        protected void onStop() {
            super.onStop();
            if (mGoogleApiClient.isConnected()) {
                mGoogleApiClient.disconnect();
            }
        }

        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
            switch (v.getId()) {

            case R.id.loginBtn:
                // Login Button Clicked
                break;

            case R.id.loginBtnFrgtPass:
                // Forgot Button Clicked
                i = new Intent(LoginActivity.this, ForgotPasswordActivity.class);
                startActivity(i);
                break;
            case R.id.loginBtnRegis:
                // Register Button Clicked
                i = new Intent(LoginActivity.this, RegisterActivity.class);
                startActivity(i);
                break;

            case R.id.loginBtn_sign_in:
                signInWithGplus();
                break;
            }
        }

        // Sign-in into google
        private void signInWithGplus() {
            if (!mGoogleApiClient.isConnecting()) {
                mSignInClicked = true;
                resolveSignInError();
            }
        }

        // Method to resolve any sign-in errors
        private void resolveSignInError() {
            Log.v(TAG, mConnectionResult.toString());
            if (mConnectionResult.hasResolution()) {
                try {
                    mIntentInProgress = true;
                    startIntentSenderForResult(mConnectionResult.getResolution()
                            .getIntentSender(), GOOGLE_SIGN_IN, null, 0, 0, 0);
                    // mConnectionResult
                    // .startResolutionForResult(this, GOOGLE_SIGN_IN);
                } catch (SendIntentException e) {
                    mIntentInProgress = false;
                    mGoogleApiClient.connect();
                }
            }
        }

        // Google+ connection
        @Override
        public void onConnected(Bundle arg0) {
            // TODO Auto-generated method stub
            Log.v(TAG, "onConnected");

            mSignInClicked = false;
            Toast.makeText(this, "User is connected to Google+", Toast.LENGTH_LONG)
                    .show();

            btnLogin.setEnabled(false);
            // Get user's information
            getProfileInformation();

        }

        // Google+ connection
        @Override
        public void onConnectionSuspended(int arg0) {
            // TODO Auto-generated method stub
            mGoogleApiClient.connect();
        }

        // Google+ connection
        @Override
        public void onConnectionFailed(ConnectionResult result) {
            // TODO Auto-generated method stub

            Log.v(TAG, result.toString());
            if (!result.hasResolution()) {
                GooglePlayServicesUtil.getErrorDialog(result.getErrorCode(), this,
                        0).show();
                return;
            }
            if (!mIntentInProgress) {
                // Store the ConnectionResult for later usage
                mConnectionResult = result;

                if (mSignInClicked) {
                    // The user has already clicked 'sign-in' so we attempt to
                    // resolve all
                    // errors until the user is signed in, or they cancel.
                    resolveSignInError();
                }
            }
        } // Normal Logging in
    }

从基本活动注销会话的代码段

if (session.isLoggedIn()) {
                session.logoutUser();
                DataStore.LoginGoogle = false;
                setOptionTitle(R.id.action_login, "Login");
            }