void mProfileTracker_mOnProfileChanged(object sender, OnProfileChangedEventArgs e) { if (e.mProfile != null) { GraphRequest request = GraphRequest.NewMeRequest(AccessToken.CurrentAccessToken, this); Bundle parameters = new Bundle(); parameters.PutString("fields", "email"); request.Parameters = parameters; request.ExecuteAsync(); nom.Text = e.mProfile.FirstName; prenom.Text = e.mProfile.LastName; pseudo.Text = e.mProfile.Name; } else { } }