void AddCommentTapped() { var composer = new Composer(); composer.NewComment(this, (text) => { try { composer.DoWorkTest("Commenting...".t(), async() => { await ViewModel.AddComment(text); composer.CloseComposer(); }); } catch (Exception e) { Utilities.ShowAlert("Unable to post comment!", e.Message); } finally { composer.EnableSendButton = true; } }); }