public override StartCommandResult OnStartCommand(Intent intent, StartCommandFlags flags, int startId)
{
_cts = new CancellationTokenSource();
Task.Run(async() =>
{
try
{
// Option #1: Using PCL project service with Dependency Injection
await MediaService.Instance.UploadPendingVideos();
}
catch (Exception ex)
{
var errorMessage = new VideoUploadResponseMessage
{
HasErrors = true,
Message = "ERROR: " + ex.Message
};
Device.BeginInvokeOnMainThread(() => MessagingCenter.Send(errorMessage, "UploadVideoResponse"));
}
finally
{
var responseMessage = new VideoUploadResponseMessage();
if (_cts.IsCancellationRequested)
{
responseMessage.Message = "Video Upload Canceled!";
}
else
{
responseMessage.Message = "Video(s) Uploaded Successfully!";
}
Device.BeginInvokeOnMainThread(() => MessagingCenter.Send(responseMessage, "UploadVideoResponse"));
}
}, _cts.Token);
return(StartCommandResult.Sticky);
}
public async Task Start()
{
_cts = new CancellationTokenSource();
_taskId = UIApplication.SharedApplication.BeginBackgroundTask("VideoUploadTask", OnExpiration);
try
{
// Option #1: Using PCL project service with Dependency Injection
await MediaService.Instance.UploadPendingVideos();
}
catch (OperationCanceledException ex)
{
var errorMessage = new VideoUploadResponseMessage
{
HasErrors = true,
Message = "ERROR: " + ex.Message
};
Device.BeginInvokeOnMainThread(() => MessagingCenter.Send(errorMessage, "UploadVideoResponse"));
}
finally
{
var responseMessage = new VideoUploadResponseMessage();
if (_cts.IsCancellationRequested)
{
responseMessage.Message = "Video Upload Canceled!";
}
else
{
responseMessage.Message = "Video(s) Uploaded Successfully!";
}
Device.BeginInvokeOnMainThread(() => MessagingCenter.Send(responseMessage, "UploadVideoResponse"));
}
UIApplication.SharedApplication.EndBackgroundTask(_taskId);
}
