private async Task LoadMyPetsAsync(bool isRefresh = false) { if (isRefresh) { IsRefreshing = true; } else { IsBusy = true; } IEnumerable <PetDto> pets; if (KutyAppClientContext.IsLoggedIn) { pets = await EnvironmentApi.GetMyPetsAsync(); } else { pets = await PetRepository.GetMyPetsAsync(); } //TODO: ures listanal a parallel elszal if (pets.Any()) { Pets = new ObservableCollection <PetsListItemViewModel>(pets.Select(p => new PetsListItemViewModel(EnvironmentApi, KutyAppClientContext, p))); if (isRefresh) { IsRefreshing = false; } else { IsBusy = false; } await Pets.ParallelForEachAsync(async p => await p.LoadImageAsync(), maxDegreeOfParalellism : 4); } if (isRefresh) { IsRefreshing = false; } else { IsBusy = false; } }