public async override void OnNavigatedTo(INavigationParameters parameters)
{
Debug.Write("FavAdvertViewModel OnNavigatedTo");
base.OnNavigatedTo(parameters);
if (parameters.ContainsKey("LoadFavAdvert"))
{
Activity = true;
AdvertShortList.Clear();
await _setting.GetFavoriteAdvertListDBAsync(AdvertShortList);
Activity = false;
}
}
protected async void DeleteAllAdverFromDb()
{
if (await _pageDialog.DisplayAlertAsync(_setting.GetAppNameAndVersion,
"Czy napewno chcesz usunąć wszystkie ulubione ogłoszenia?", "Usuń wszystko", "Anuluj"))
{
if (await _setting.DeleteAdvertAllDBAsync())
{
_dependencyService.Get <IToast>().Show("Usunięto wszystkie ogłoszenia z bazy.");
AdvertShortList.Clear();
}
else
{
_dependencyService.Get <IToast>().Show("Wystąpił błąd podczas usuwania ogłoszeń z bazy.");
}
}
}
protected async Task <bool> SearchExecute(AdvertSearch advertSearch, bool addLoad = false)
{
Debug.Write("SearchExecute");
Activity = true;
ErrorMessage = String.Empty;
_lastAdvertSearch = advertSearch;
OnPropertyChanged("CurrentCategory");
OnPropertyChanged("FilterButtonColor");
if (advertSearch == null)
{
Debug.Write("SearchExecute => advertSearch == null");
return(false);
}
if (addLoad)
{
FotterActivity = true;
Activity = false;
}
else
{
Activity = true;
FotterActivity = false;
AdvertShortList.Clear();
}
var lastAddAdvert = await _rzeszowiakRepository.GetAdvertListAsync(advertSearch);
if (!lastAddAdvert.Correct)
{
if (!addLoad)
{
ErrorMessage = "Błąd podczas ładowania strony.\nSprawdź połączenie internetowe i spróbuj ponownie.";
}
}
else
{
_lastAdvertSearchResult = lastAddAdvert;
var adverId = new List <int>();
foreach (var item in AdvertShortList)
{
adverId.Add(item.AdverIDinRzeszowiak);
}
foreach (var item in lastAddAdvert.AdvertShortsList)
{
if (adverId.IndexOf(item.AdverIDinRzeszowiak) != -1)
{
continue;
}
AdvertShortList.Add(item);
await Task.Delay(50);
}
if (AdvertShortList.Count == 0 && !addLoad)
{
ErrorMessage = "Nic nie znaleziono.\nZmień kryteria wyszukiwania.";
}
}
Activity = false;
FotterActivity = false;
return(true);
}