public async void DownloadPoisListAsync()
{
POIService service = new POIService();
if (!service.isConnected(activity))
{
Toast toast = Toast.MakeText(activity, "Not conntected to the internet. Please, check your device network settings.", ToastLength.Short);
toast.Show();
poiListData = DBManager.Instance.GetPOIListFromCache();
}
else
{
progressBar.Visibility = ViewStates.Visible;
poiListData = await service.GetPOIListAsync();
// Clear cached data
DBManager.Instance.ClearPOICache();
// Save updated POI data
DBManager.Instance.InsertAll(poiListData);
progressBar.Visibility = ViewStates.Gone;
}
poiListAdapter = new POIListViewAdapter(activity, poiListData);
this.ListAdapter = poiListAdapter;
ListView.Post(() => {
ListView.SetSelection(scrollPosition);
});
}
