protected override void OnElementChanged(ElementChangedEventArgs <FacebookLoginButton> ec)
{
base.OnElementChanged(ec);
var element = ec.NewElement;
{
var session = Xamarin.Facebook.AccessToken.CurrentAccessToken;
element.LoggedIn = session != null;
}
var control = new LoginButton(base.Context);
control.RegisterCallback(MainActivity.CallbackManager, this);
LoginManager.Instance.RegisterCallback(MainActivity.CallbackManager, this);
fbTracker = new CustomAccessTokenTracker(base.Element)
{
};
fbTracker.StartTracking();
if (element.ReadPermissions != null)
{
control.SetReadPermissions(element.ReadPermissions);
}
else
{
if (element.PublishPermissions != null)
{
control.SetPublishPermissions(element.PublishPermissions);
}
}
MessagingCenter.Subscribe(this, "Login", (s) =>
{
Login();
}, element);
MessagingCenter.Subscribe(this, "Logout", (s) =>
{
Logout();
}, element);
bool sentInitialEvent = false;
control.ViewAttachedToWindow += (s, e) =>
{
if (!sentInitialEvent && Element != null)
{
sentInitialEvent = true;
var session = Xamarin.Facebook.AccessToken.CurrentAccessToken;
if (session != null)
{
LogIn();
}
else
{
Element.SendShowingLoggedOutUser();
}
}
};
var oldControl = Control;
SetNativeControl(control);
if (oldControl != null)
{
oldControl.Dispose(); // collect Java Objects on Android
}
}
protected internal override void onCreate(Bundle savedInstanceState)
{
base.onCreate(savedInstanceState);
/* Load the view and display it */
ContentView = R.layout.activity_main;
/* *************************************
* FACEBOOK *
***************************************/
/* Load the Facebook login button and set up the tracker to monitor access token changes */
mFacebookCallbackManager = CallbackManager.Factory.create();
mFacebookLoginButton = (LoginButton)findViewById(R.id.login_with_facebook);
mFacebookAccessTokenTracker = new AccessTokenTrackerAnonymousInnerClassHelper(this);
/* *************************************
* GOOGLE *
***************************************/
/* Load the Google login button */
mGoogleLoginButton = (SignInButton)findViewById(R.id.login_with_google);
mGoogleLoginButton.OnClickListener = new OnClickListenerAnonymousInnerClassHelper(this);
/* Setup the Google API object to allow Google+ logins */
mGoogleApiClient = (new GoogleApiClient.Builder(this)).addConnectionCallbacks(this).addOnConnectionFailedListener(this).addApi(Plus.API).addScope(Plus.SCOPE_PLUS_LOGIN).build();
/* *************************************
* TWITTER *
***************************************/
mTwitterLoginButton = (Button)findViewById(R.id.login_with_twitter);
mTwitterLoginButton.OnClickListener = new OnClickListenerAnonymousInnerClassHelper2(this);
/* *************************************
* PASSWORD *
***************************************/
mPasswordLoginButton = (Button)findViewById(R.id.login_with_password);
mPasswordLoginButton.OnClickListener = new OnClickListenerAnonymousInnerClassHelper3(this);
/* *************************************
* ANONYMOUSLY *
***************************************/
/* Load and setup the anonymous login button */
mAnonymousLoginButton = (Button)findViewById(R.id.login_anonymously);
mAnonymousLoginButton.OnClickListener = new OnClickListenerAnonymousInnerClassHelper4(this);
/* *************************************
* GENERAL *
***************************************/
mLoggedInStatusTextView = (TextView)findViewById(R.id.login_status);
/* Create the Firebase ref that is used for all authentication with Firebase */
mFirebaseRef = new Firebase(Resources.getString([email protected]_url));
/* Setup the progress dialog that is displayed later when authenticating with Firebase */
mAuthProgressDialog = new ProgressDialog(this);
mAuthProgressDialog.Title = "Loading";
mAuthProgressDialog.Message = "Authenticating with Firebase...";
mAuthProgressDialog.Cancelable = false;
mAuthProgressDialog.show();
mAuthStateListener = new AuthStateListenerAnonymousInnerClassHelper(this);
/* Check if the user is authenticated with Firebase already. If this is the case we can set the authenticated
* user and hide hide any login buttons */
mFirebaseRef.addAuthStateListener(mAuthStateListener);
}
