private async Task <IEnumerable <ShowDto> > OnLoadMore()
{
_pageNr--;
await LoadNextPageCommand.Execute(_pageNr).ToTask();
return(new List <ShowDto>());
}
private async void LoadData(int postId, int pageIndex, bool isNeeedClear = true)
{
BusyCount++;
_isLoadingNow = true;
IsResultEmpty = false;
LoadNextPageCommand.RaiseCanExecuteChanged();
LoadPreviousPageCommand.RaiseCanExecuteChanged();
RefreshCommand.RaiseCanExecuteChanged();
var commentsResponse = await _commentsProvider.LoadCommentsAsync(postId, pageIndex, commentType);
if (commentsResponse != null)
{
CurrentIndex = commentsResponse.PagerCurrent;
if (commentsResponse.PageComments != null)
{
LastIndex = commentsResponse.TotalCount / 25;
Comments = commentsResponse.PageComments;
}
}
_isLoadingNow = false;
IsResultEmpty = Comments.Count == 0;
LoadNextPageCommand.RaiseCanExecuteChanged();
LoadPreviousPageCommand.RaiseCanExecuteChanged();
RefreshCommand.RaiseCanExecuteChanged();
BusyCount--;
}
public MainViewModel()
{
_movieService = new MovieService();
LoadNextPageCommand = ReactiveCommand.CreateFromTask <int, List <ShowDto> >(async _ =>
{
var items = await _movieService.LoadPage(_pageNr);
await Task.Delay(1000);
return(items);
});
LoadNextPageCommand.IsExecuting.BindTo(this, vm => vm.IsBusy);
LoadNextPageCommand.Subscribe(shows =>
{
_showsList.AddRange(shows);
});
LoadNextPageCommand.Execute(_pageNr).Subscribe();
LoadNextPageCommand.IsExecuting
.ToProperty(this, vm => vm.IsLoadingItems, out _isLoadingItems);
_showsList
.Connect()
.ObserveOn(RxApp.MainThreadScheduler)
.Sort(SortExpressionComparer <ShowDto> .Ascending(a => a.Id))
.Bind(Shows)
.Subscribe();
Shows.ShouldLoadMoreThreshold = 100;
Shows.OnLoadMore += OnLoadMore;
Shows.OnCanLoadMore += OnCanLoadMore;
}
