public async Task Start()
{
_cts = new CancellationTokenSource();
_taskId = UIApplication.SharedApplication.BeginBackgroundTask("LongRunningTask", OnExpiration);
try
{
//INVOKE THE SHARED CODE
//var counter = new TaskCounter();
//await counter.RunCounter(_cts.Token);
if (longTask != null)
{
await longTask.Run(_cts.Token);
}
//await Task.Run(() => {
// _cts.Token.ThrowIfCancellationRequested();
// LongTask.Start();
// //Device.BeginInvokeOnMainThread(() => {
// // MessagingCenter.Send<TickedMessage>(message, "TickedMessage");
// //});
//}, _cts.Token);
}
catch (OperationCanceledException)
{
}
finally
{
if (_cts.IsCancellationRequested)
{
//var message = new CancelledMessage();
//Device.BeginInvokeOnMainThread(
// () => MessagingCenter.Send(message, "CancelledMessage")
//);
}
}
UIApplication.SharedApplication.EndBackgroundTask(_taskId);
}
protected override void OnHandleWork(Intent p0)
{
var parcelable = (UploadLongRunningTaskParcelable)p0.GetParcelableExtra("task");
longTask = parcelable.Task;
_cts = new CancellationTokenSource();
Task.Run(async() =>
{
try
{
//INVOKE THE SHARED CODE
//var counter = new TaskCounter();
//counter.RunCounter(_cts.Token).Wait();
if (longTask != null)
{
await longTask.Run(_cts.Token);
}
}
catch (System.OperationCanceledException ex)
{
Console.WriteLine(ex.Message);
}
finally
{
if (_cts.IsCancellationRequested)
{
//var message = new CancelledMessage();
//Device.BeginInvokeOnMainThread(
// () => MessagingCenter.Send(message, "CancelledMessage")
//);
}
}
}, _cts.Token);
}