private async void SignInExecute() { var signInSheet = new EmailSignInSheet(); var success = await ModalSheetUtility.ShowAsync(signInSheet); if (success) { CurtainPrompt.Show("Welcome!"); CollectionHelper.IdentifyXamarin(); // Sync collection await CollectionHelper.CloudSync(false); await CollectionHelper.DownloadAlbumsArtworkAsync(); await CollectionHelper.DownloadArtistsArtworkAsync(); } }