public void OnDownloadItemEdit(int position)
{
DownloadViewItem item = _downloadItemAdapter[position];
if (!item.fromDatabase.DownloadDate.HasValue)
{
DownloadPoiDataFromInternet(item);
_downloadItemAdapter.NotifyDataSetChanged();
}
}
private void DeletePoiDataFromInternet(DownloadViewItem item)
{
try
{
AppContext.Database.DeleteAllFromSource(item.fromDatabase.Id);
item.fromDatabase.DownloadDate = null;
AppContext.Database.DeleteItem(item.fromDatabase);
//PopupHelper.Toast(this, Resource.String.Download_InfoRemovedItems);
}
catch (Exception ex)
{
PopupHelper.ErrorDialog(this, Resource.String.Download_ErrorRemoving, ex.Message);
}
}
private void DownloadPoiDataFromInternet(DownloadViewItem item)
{
try
{
var ec = new PoiFileImport(item.fromDatabase);
var lastProgressUpdate = System.Environment.TickCount;
var pd = new ProgressDialog(this);
pd.SetMessage(Resources.GetText(Resource.String.Download_LoadingData));
pd.SetCancelable(false);
pd.SetProgressStyle(ProgressDialogStyle.Horizontal);
pd.Show();
ec.OnFinishedAction = (result) =>
{
pd.Hide();
if (result.Count > 0)
{
AppContext.Database.InsertAll(result);
item.fromDatabase.DateCreated = item.fromInternet.DateCreated;
item.fromDatabase.Description = item.fromInternet.Description;
item.fromDatabase.PointCount = item.fromInternet.PointCount;
item.fromDatabase.Url = item.fromInternet.Url;
item.fromDatabase.DownloadDate = DateTime.Now;
AppContext.Database.InsertItem(item.fromDatabase);
//PopupHelper.Toast(this, String.Format(Resources.GetText(Resource.String.Download_InfoLoadedItems), result.Count));
_downloadItemAdapter.NotifyDataSetChanged();
}
};
ec.OnStageChange = (resourceStringId, max) =>
{
MainThread.BeginInvokeOnMainThread(() =>
{
pd.SetMessage(Resources.GetText(resourceStringId));
pd.Max = max;
});
};
ec.OnProgressChange = (progress) =>
{
if (progress % 100 == 0)
{
var tickCount = System.Environment.TickCount;
if (tickCount - lastProgressUpdate > 100)
{
MainThread.BeginInvokeOnMainThread(() => { pd.Progress = progress; });
Thread.Sleep(50);
lastProgressUpdate = tickCount;
}
}
};
ec.OnError = (message) =>
{
PopupHelper.ErrorDialog(this, Resource.String.Download_ErrorDownloading, message);
};
ec.Execute(item.fromInternet.Url);
}
catch (Exception ex)
{
PopupHelper.ErrorDialog(this, Resource.String.Download_ErrorDownloading, ex.Message);
}
}
private void OnIndexDownloaded(string json)
{
try
{
_downloadViewItems = new List <DownloadViewItem>();
//fetch list of already downladed items from database
var downloadedTask = AppContext.Database.GetDownloadedPoisAsync();
downloadedTask.Wait();
var _downloadItems = downloadedTask.Result.ToList();
if (!String.IsNullOrEmpty(json))
{
var _horizonIndex = JsonConvert.DeserializeObject <HorizonIndex>(json);
//combine those two lists together
foreach (var country in _horizonIndex)
{
foreach (var item in country.PoiData)
{
var fromDB = _downloadItems.Find(x => x.Id == item.Id);
if (fromDB == null)
{
fromDB = new PoisToDownload()
{
Id = item.Id,
Description = item.Description,
Category = item.Category,
Url = item.Url,
Country = country.Country,
PointCount = item.PointCount,
DateCreated = item.DateCreated,
DownloadDate = null
};
}
var x = new DownloadViewItem(fromDB, item);
_downloadViewItems.Add(x);
}
}
}
}
catch (Exception e)
{
PopupHelper.ErrorDialog(this, Resource.String.Download_ErrorDownloading, e.Message);
return;
}
var countries = _downloadViewItems.Select(x => x.fromDatabase.Country)
.Distinct()
.OrderBy(x => PoiCountryHelper.GetCountryName(x))
.ToList();
Task.Run(async() =>
{
var defaultCountry = await PoiCountryHelper.GetDefaultCountryByPhoneLocation();
MainThread.BeginInvokeOnMainThread(() =>
{
_countryAdapter.SetItems(countries);
SelectCountry(defaultCountry);
});
});
}