public override StartCommandResult OnStartCommand(Intent intent, StartCommandFlags flags, int startId)
{
_cts = new CancellationTokenSource();
Task.Run(() => {
try
{
var refreshTask = new RefreshWeatherTaskService();
refreshTask.RunTask(_cts.Token).Wait();
}
catch (Exception e) {
System.Diagnostics.Debug.WriteLine(e);
}
finally
{
if (_cts.IsCancellationRequested)
{
Device.BeginInvokeOnMainThread(
() => MessagingCenter.Send(new StopRefreshWeather(), typeof(StopRefreshWeather).FullName)
);
}
}
}, _cts.Token);
return(StartCommandResult.Sticky);
}
public async Task Start()
{
_cts = new CancellationTokenSource();
_taskId = UIApplication.SharedApplication.BeginBackgroundTask("LongRunningTask", OnExpiration);
try
{
var refreshTask = new RefreshWeatherTaskService();
await refreshTask.RunTask(_cts.Token);
}
catch (Exception e) { }
finally
{
if (_cts.IsCancellationRequested)
{
Device.BeginInvokeOnMainThread(
() => MessagingCenter.Send(new StopRefreshWeather(), typeof(StopRefreshWeather).FullName)
);
}
}
UIApplication.SharedApplication.EndBackgroundTask(_taskId);
}