protected override void OnViewModelSet() { base.OnViewModelSet(); SetContentView(Resource.Layout.Main); var dialog = new MaterialDialog.Builder(this).SetContent("正在加载更多").SetCancelable(false).SetProgress(true, 0).Build(); Messenger.Subscribe <LoadMoreMessager>(x => { if (x.IsClose) { dialog.Dismiss(); } else { dialog.Show(); } }); }