public async void StartLogin(
)
{
FBSession s = FBSession.ActiveSession;
// Assumes the Facebook App ID and Windows Phone Store ID have been
// saved in the default resource file.
ResourceLoader rl = ResourceLoader.GetForCurrentView();
String appId = rl.GetString(FBAppIDName);
String winAppId = rl.GetString(FBPhoneAppIDName);
// IDs are both sent to FB app, so it can validate us.
s.FBAppId = appId;
s.WinAppId = winAppId;
// These are the default permissions, needed to retrieve user info.
s.AddPermission("public_profile");
s.AddPermission("user_friends");
s.AddPermission("user_likes");
// Launches a URI to redirect to the FB app, which will log us in
// and return the result via our registered protocol.
await s.LoginAndContinue();
}
