public async void DownloadPoisListAsync()
{
POIService service = new POIService();
if (!service.isConnected(activity))
{
Toast toast = Toast.MakeText(activity,
"Not conntected to 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); });
}
//::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
//LifeCycle
protected override void OnCreate(Bundle bundle)
{
//Call SuperClass OnCreate
base.OnCreate(bundle);
//Log.Info(GlobalApp.TAG, "OnCreate()");
// Set our view from the "POIList" layout resource
SetContentView(Resource.Layout.POIList);
// request an LocationService instance
_locMgr = GetSystemService(Context.LocationService) as LocationManager;
// Hooking up POIListViewAdapter
_poiListView = FindViewById<ListView>(Resource.Id.poiListView);
_adapter = new POIListViewAdapter(this);
_poiListView.Adapter = _adapter;
//hook _poiListView up the event handler.
_poiListView.ItemClick += POIClicked;
}