How to Sign-Out from an authenticated ListDataProvider/Authenticator in Windows Phone 8 - authentication

Question

I am reading a SharePoint list from Office 365 inside a Windows Phone 8 app. My app-code is based on this sample code from Microsoft. It uses
Microsoft.SharePoint.Phone.Application.ListDataProviderBase
Microsoft.SharePoint.Client.ClientContext
Microsoft.SharePoint.Client.Authenticator
The actual problem beeing signout not working!
On the first request to the server, the client asks for authentication and shows a hosted browser window where I can enter my account credentials. I select to stay logged in here.
If i restart the app, it authenticates me without showing the UI again.
I would like to be able to switch user or simply signout leaving no credentials on the phone behind.
I found the following static methods on Authenticator which do not change anything:
Authenticator.ClearAllCookies();
Authenticator.ClearAllCredentials();
Authenticator.ClearAllApplicationSettings();
What is the prefered way to do this?

Answer 1

This is an example of how I am logging out a user in my SP list App for WP8:
App.MainViewModel.IsInitialized = false;
Authenticator.ClearAllCredentials();
App.MainViewModel.Initialize();
MessageBox.Show("You have been successfully logged out, click refresh to login again.");
Your app maybe a little different, but you should at least get to the App and ViewModel to set Initialized as false. I did expxect the App.MainViewModel.Initialize() to show the login page but need to click refresh after calling this SignOut method to do so, that is why I displayed the messagebox.
Hope this helps you.