Salir de Google+ de una actividad diferente

Comencé a usar la Google+ API para android y he creado una aplicación de inicio de sesión después de este tutorial:

Https://developers.google.com/+/mobile/android/sign-in

• Android Google + integración a veces devuelve valores nulos
• El cierre de sesión de otra actividad en Google más la integración no es un trabajo
• Validación del lado del servidor de token de Google Access para la aplicación de Android
• Mensaje INVALID_KEY que intenta autenticarse mediante el botón de inicio de sesión de Google+
• Token de acceso recuperado: null. Com.google.android.gms.auth.GoogleAuthException: Desconocido

Ahora, el problema es que quiero crear el botón de salida de una Activity diferente, y lo que intenté hacer no funcionó realmente.

Mi código de GPlusLogin (Actividad para el inicio de sesión de Google+):

 import android.app.Activity; import android.app.ProgressDialog; import android.content.Intent; import android.content.IntentSender.SendIntentException; import android.os.Bundle; import android.util.Log; import android.view.View; import android.view.View.OnClickListener; import com.google.android.gms.common.*; import com.google.android.gms.common.GooglePlayServicesClient.ConnectionCallbacks; import com.google.android.gms.common.GooglePlayServicesClient.OnConnectionFailedListener; import com.google.android.gms.plus.PlusClient; public class GPlusLogin extends Activity implements ConnectionCallbacks, OnConnectionFailedListener{ private static final int REQUEST_CODE_RESOLVE_ERR = 9000; private static final String TAG = "GPlusLogin"; private ProgressDialog mConnectionProgressDialog; private PlusClient mPlusClient; private ConnectionResult mConnectionResult; @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); setContentView(R.layout.gplus_layout); mPlusClient = new PlusClient.Builder(this, this, this).setVisibleActivities("http://schemas.google.com/AddActivity", "http://schemas.google.com/BuyActivity").build(); Bundle extras = getIntent().getExtras(); mConnectionProgressDialog = new ProgressDialog(this); mConnectionProgressDialog.setMessage("Signing in..."); if(extras!=null){ if(extras.getString("signout")!=null){ if (mPlusClient.isConnected()) { mPlusClient.clearDefaultAccount(); mPlusClient.disconnect(); mPlusClient.connect(); finish(); startActivity(getIntent()); } } }else{ findViewById(R.id.sign_in_button).setOnClickListener(new OnClickListener() { public void onClick(View view) { // TODO Auto-generated method stub if (view.getId() == R.id.sign_in_button && !mPlusClient.isConnected()) { if (mConnectionResult == null) { mConnectionProgressDialog.show(); } else { try { mConnectionResult.startResolutionForResult(GPlusLogin.this, REQUEST_CODE_RESOLVE_ERR); } catch (SendIntentException e) { // Try connecting again. mConnectionResult = null; mPlusClient.connect(); } } } } }); } } @Override protected void onStart() { // TODO Auto-generated method stub super.onStart(); mPlusClient.connect(); } @Override protected void onStop() { // TODO Auto-generated method stub super.onStop(); mPlusClient.disconnect(); } @Override public void onConnectionFailed(ConnectionResult result) { // TODO Auto-generated method stub if (mConnectionProgressDialog.isShowing()) { // The user clicked the sign-in button already. Start to resolve // connection errors. Wait until onConnected() to dismiss the // connection dialog. if (result.hasResolution()) { try { result.startResolutionForResult(this, REQUEST_CODE_RESOLVE_ERR); } catch (SendIntentException e) { mPlusClient.connect(); } } } mConnectionResult = result; } @Override protected void onActivityResult(int requestCode, int responseCode, Intent intent) { if (requestCode == REQUEST_CODE_RESOLVE_ERR && responseCode == RESULT_OK) { mConnectionResult = null; mPlusClient.connect(); } } @Override public void onConnected() { // TODO Auto-generated method stub mConnectionProgressDialog.dismiss(); Intent main = new Intent(GPlusLogin.this, MainActivity.class); main.putExtra("result", true); startActivity(main); } @Override public void onDisconnected() { // TODO Auto-generated method stub Log.d(TAG, "disconnected"); } } 

Mi código de desconexión en MainActivity :

 import android.os.Bundle; import android.app.Activity; import android.content.Intent; import android.view.Menu; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.TextView; public class MainActivity extends Activity{ @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Bundle extras = getIntent().getExtras(); if(extras==null){ Intent intent = new Intent(this, GPlusLogin.class); startActivity(intent); } TextView text1 = (TextView) findViewById(R.id.text1); text1.setText("You Are Connected :D"); Button SignOut = (Button) findViewById(R.id.sign_out_gplus); SignOut.setOnClickListener(new OnClickListener() { @Override public void onClick(View view) { // TODO Auto-generated method stub Intent intent = new Intent(MainActivity.this, GPlusLogin.class); intent.putExtra("signout", true); startActivity(intent); } }); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main, menu); return true; } } 

 public class MainActivity extends Activity implements OnClickListener, ConnectionCallbacks, OnConnectionFailedListener, ResultCallback<People.LoadPeopleResult> { GoogleApiClient mGoogleApiClient; boolean mSignInClicked; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); mGoogleApiClient = new GoogleApiClient.Builder(this) .addConnectionCallbacks(this) .addOnConnectionFailedListener(this).addApi(Plus.API) .addScope(Plus.SCOPE_PLUS_LOGIN).build(); //copy this code on "Logout" Onclick logout.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { // TODO Auto-generated method stub if (mGoogleApiClient.isConnected()) { Plus.AccountApi.clearDefaultAccount(mGoogleApiClient); mGoogleApiClient.disconnect(); mGoogleApiClient.connect(); // updateUI(false); System.err.println("LOG OUT ^^^^^^^^^^^^^^^^^^^^ SUCESS"); } } }); } @Override public void onConnected(Bundle arg0) { // TODO Auto-generated method stub mSignInClicked = false; // updateUI(true); Plus.PeopleApi.loadVisible(mGoogleApiClient, null).setResultCallback( this); } @Override public void onConnectionSuspended(int arg0) { // TODO Auto-generated method stub mGoogleApiClient.connect(); // updateUI(false); } @Override public void onConnectionFailed(ConnectionResult arg0) { // TODO Auto-generated method stub } protected void onStart() { super.onStart(); mGoogleApiClient.connect(); } protected void onStop() { super.onStop(); if (mGoogleApiClient.isConnected()) { mGoogleApiClient.disconnect(); } } @Override public void onResult(LoadPeopleResult arg0) { // TODO Auto-generated method stub } 

 @Override protected void onStart() { GoogleSignInOptions gso = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN) .requestEmail() .build(); mGoogleApiClient = new GoogleApiClient.Builder(this) .addApi(Auth.GOOGLE_SIGN_IN_API, gso) .build(); mGoogleApiClient.connect(); super.onStart(); } 

 signout.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Auth.GoogleSignInApi.signOut(mGoogleApiClient).setResultCallback( new ResultCallback<Status>() { @Override public void onResult(Status status) { // ... Toast.makeText(getApplicationContext(),"Logged Out",Toast.LENGTH_SHORT).show(); Intent i=new Intent(getApplicationContext(),MainActivity.class); startActivity(i); } }); } 

 if (Intent.Extras != null && Intent.Extras.ContainsKey("LogoutAction")) { _logoutRequest = Intent.Extras.GetBoolean("LogoutAction"); } if (_logoutRequest) { await PlusClass.AccountApi.RevokeAccessAndDisconnect(_apiClient); _apiClient.Disconnect(); _apiClient.Connect (); _logoutRequest = false; } 

 var intent = new Intent(this.Activity,typeof(LoginActivity)); intent.PutExtra("LogoutAction",true);