How do I hide the login button after that I have logged in to Facebook in my app? I want to put my login(logout) button in menu_login.xml or another place.
my LoginActivity.
public class LoginActivity extends AppCompatActivity {
private LoginButton loginButton;
private CallbackManager callbackManager;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
FacebookSdk.sdkInitialize(getApplicationContext());
callbackManager = CallbackManager.Factory.create();
setContentView(R.layout.activity_login);
loginButton = (LoginButton) findViewById(R.id.login_button);
// Callback registration
loginButton.registerCallback(callbackManager, new FacebookCallback<LoginResult>() {
@Override
public void onSuccess(LoginResult loginResult) {
Intent intent = new Intent (LoginActivity.this, MainActivity.class);
startActivity(intent);
}
@Override
public void onCancel() {
}
@Override
public void onError(FacebookException exception) {
}
});
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
callbackManager.onActivityResult(requestCode, resultCode, data);
}
}
This is what I put in the menu_login.xml
<item android:id="@+id/login_button" android:title="Log out"
android:orderInCategory="10" app:showAsAction="never" />
But when I press the log out button, nothing will happen.
I have also tried this to send me from one to another Activity after the login, but then more problems comes up.
@Override
public void onSuccess(LoginResult loginResult) {
Intent intent = new Intent (LoginActivity.this, MainActivity.class);
startActivity(intent);
So, how do I hide the logout button after login in?
Thanks.
You could use the local broadcast manager class and broadcast in your application that you have successfully logged into Facebook. Your MainActivity (or whoever is interested) would then need to listen to that broadcast and act accordingly.
More info: http://developer.android.com/intl/es/reference/android/support/v4/content/LocalBroadcastManager.html
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