Facebook Login/Google Login - Same Activity?

Question

I am trying to give my users the option to sign in with either Google or Facebook. So far I found an example to implement a Google Sign in Flow, but I am confused if I can imple

Answer 1

set both fragments (facebook and google) in the layout that you use as login and in another to receive the session validated

then use al functions required by each one

public class MainActivity extends Activity implements ConnectionCallbacks,OnConnectionFailedListener {
//google
private PlusClient plusClient;
private SignInButton btnSignIn;
private ProgressDialog connectionProgressDialog;
private ConnectionResult connectionResult;
private static final int REQUEST_CODE_RESOLVE_ERR = 9000;
//face
private LoginButton buttonLoginLogout;
private UiLifecycleHelper uiHelper;
static Usuario appusuario;
static String urldelogin="algo";
private Session.StatusCallback callback = new Session.StatusCallback() {
    @Override
    public void call(Session session, SessionState state, Exception exception) {
        onSessionStateChange(session, state, exception);
        if (session.isOpened()) {
            Log.e("usuario", "si hay sesion");
            // make request to the /me API
            Request.newMeRequest(session, new Request.GraphUserCallback() {

                // callback after Graph API response with user object
                @Override
                public void onCompleted(GraphUser user, Response response) {
                    if (user != null) {
                        Log.e("usuario", "si hay usuario");
                        buildUserInfoDisplay(user);
                        //start another activity
                        }
                }
            }).executeAsync();
        }
    }

    private void onSessionStateChange(Session session, SessionState state,
            Exception exception) {
        // TODO Auto-generated method stub
    }
};


@Override
public void onResume() {
    super.onResume();
    uiHelper.onResume();
}   

@Override
public void onPause() {
    super.onPause();
    uiHelper.onPause();
}   

@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    uiHelper.onActivityResult(requestCode, resultCode, data);
    if (requestCode == REQUEST_CODE_RESOLVE_ERR &&
            resultCode == RESULT_OK)
        {
            connectionResult = null;
            plusClient.connect();
        }
}   

@Override
public void onDestroy() {
    super.onDestroy();
    uiHelper.onDestroy();
}   


@Override
protected void onSaveInstanceState(Bundle outState) {
    super.onSaveInstanceState(outState);
    uiHelper.onSaveInstanceState(outState);
}
public static void buildUserInfoDisplay(GraphUser user) {

    appusuario=new Usuario(user.getName(),user.getUsername());
}

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    uiHelper = new UiLifecycleHelper(this, callback);
    uiHelper.onCreate(savedInstanceState);
    buttonLoginLogout = (LoginButton)findViewById(R.id.authButton);
    buttonLoginLogout.setReadPermissions(Arrays.asList("user_status"));

    btnSignIn = (SignInButton)findViewById(R.id.sign_in_button);
    buttonLoginLogout.setVisibility(View.VISIBLE);
    btnSignIn.setVisibility(View.VISIBLE);
    plusClient = new PlusClient.Builder(this, this, this).setActions("http://schemas.google.com/AddActivity", "http://schemas.google.com/BuyActivity")
            .build();

    connectionProgressDialog = new ProgressDialog(this);
    connectionProgressDialog.setMessage("Conectando...");

    btnSignIn.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View view)
        {
            if (!plusClient.isConnected())
            {
                if (connectionResult == null)
                {
                    connectionProgressDialog.show();
                }
                else
                {
                    try
                    {
                        connectionResult.startResolutionForResult(
                            MainActivity.this,
                            REQUEST_CODE_RESOLVE_ERR);
                    }
                    catch (SendIntentException e)
                    {
                        connectionResult = null;
                        plusClient.connect();
                    }
                }
            }
        }
    });


}

@Override
protected void onStart()
{
    super.onStart();
    plusClient.connect();
}

@Override
protected void onStop()
{
    super.onStop();
    plusClient.disconnect();
}


@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;

}

 @Override
    public void onConnected(Bundle connectionHint)
    {
        connectionProgressDialog.dismiss();
        //nombre
        String accountName = plusClient.getAccountName();
       //cuenta con mail
        Person accountperson=plusClient.getCurrentPerson();
        String personName = accountperson.getDisplayName();
        Log.e("Google +", "Conectado");
        //start another activity

    }

    @Override
    public void onDisconnected()
    {
        Log.e("Google +", "Desconectado");
    }

    @Override
    public void onConnectionFailed(ConnectionResult result) {
        // TODO Auto-generated method stub
        if (connectionProgressDialog.isShowing())
        {
            if (result.hasResolution())
            {
                try
                {
                    result.startResolutionForResult(this,
                        REQUEST_CODE_RESOLVE_ERR);
                }
                catch (SendIntentException e)
                {
                    plusClient.connect();
                }
            }
        }
        connectionResult = result;

    }
      }

in the new activity place the same functions to validate the sesion and use

if (session.isOpened()) { }

to hide google login button or

 public void onConnected(Bundle connectionHint)
    {

    }

to hide facebook login button