public void RetrieveWeather(GPSPoint location)
{
if (ApplicationState.Current.IsOffline || !ApplicationState.Current.IsPremium)
{//weather conditions are retrieved only for premium or instructor accounts. also skip weather retrieving in offline mode
return;
}
bool hasWeather = Entry.Weather != null && Entry.Weather.Temperature != null;
if (weatherRetrievingStarted || hasWeather)
{//run retrieving weather only once
return;
}
weatherRetrievingStarted = true;
//retrieve weather for user current location
weatherService = new WorldWeatherOnline();
weatherService.WeatherLoaded += weatherService_WeatherLoaded;
weatherService.BeginLoadWeather(location);
}
public void RetrieveWeather()
{
WeatherRetrieving = true;
WeatherStatus = GPSStrings.GPSTrackerViewModel_RetrievingCurrentWeather;
try
{
var weatherService = new WorldWeatherOnline();
entry.Weather = weatherService.LoadWeather();
WeatherStatus = "";
NotifyOfPropertyChange(() => HasWeatherInfo);
NotifyOfPropertyChange(() => WeatherImage);
NotifyOfPropertyChange(() => CurrentTemperature);
}
catch (Exception)
{
WeatherStatus = GPSStrings.GPSTrackerViewModel_ErrRetrieveWeather;
}
finally
{
WeatherRetrieving = false;
}
}
void weatherService_WeatherLoaded(object sender, WeatherRetrievedEventArgs e)
{
weatherService.WeatherLoaded -= weatherService_WeatherLoaded;
weatherService = null;
Entry.Weather = e.Weather;
}
