/// <summary>
/// Deserialize XML from OpenWeatherMap
/// </summary>
/// <param name="file">File to deserialize</param>
/// <returns>The Forecas object </returns>
public static async Task <Weatherdata> GetForecast(StorageFile file)
{
Weatherdata forecastFromXML = null;
XmlSerializer serializer = new XmlSerializer(typeof(Weatherdata));
Stream stream = await file.OpenStreamForReadAsync().ConfigureAwait(false);
forecastFromXML = (Weatherdata)serializer.Deserialize(stream);
stream.Dispose();
return(forecastFromXML);
}
private async void OpenWeatherMap_onDownloadComplete(bool status)
{
if (status)
{
this.LastSuccessForecastDownload = DateTime.Now;
}
XMLDownloaded = status;
/*
* !!!! Běží na vedlejším vlákně !!!!
*/
XMLForecastAvailable = await OpenWeatherMap.IsOfflineXMLAvailable("forecast.xml");
IsSomethingToShow = false;
if (XMLForecastAvailable)
{
// Get forecast object;
StorageFolder localFolder = ApplicationData.Current.LocalFolder;
StorageFile XMLFile = await localFolder.GetFileAsync("forecast.xml");
this.Forecast = await OpenWeatherMap.GetForecast(XMLFile);
if (this.Forecast.ForecasForNowAvailable)
{
IsSomethingToShow = true;
OldXMLForecastUsed = !status;
}
}
await Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal,
() =>
{
// Toto probehne na hlavnim vlakne
ShowForecast(IsSomethingToShow);
});
}