public override StartCommandResult OnStartCommand(Intent intent, StartCommandFlags flags, int startId)
{
var id = intent.GetIntExtra("id", 0);
var url = intent.GetStringExtra("url");
var filePath = intent.GetStringExtra("filePath");
var iQueueType = intent.GetIntExtra("queueType", 0);
QueueType queueType = ConvertIntToQueueType(iQueueType);
Task.Run(() => {
var imageHelper = new DownloadHelper();
imageHelper.DownloadFileAsync(url, filePath)
.ContinueWith(fp => {
var message = new DownloadFinishedMessage
{
Id = id,
Url = url,
FilePath = fp.Result,
QueueType = queueType
};
MessagingCenter.Send(message, "DownloadFinishedMessage");
});
});
return(StartCommandResult.Sticky);
}
private async Task PodcastFileCompletedAsync(DownloadFinishedMessage message)
{
try
{
//refetch rssEpisode in case it's different from the currently viewed one
var episode = await DataStore.GetEpisodeItemByIdAsync(message.Id);
if (episode != null)
{
episode.IsPlaying = IsPlayingEnum.NotStarted;
episode.IsDownloaded = IsDownloadedEnum.Downloaded;
episode.PlayPauseDownloadIcon = IconFont.PlayArrow;
RssEpisodeManager.UpdateRssEpisodeWithFileInfo(ref episode);
//save download status to the database
var resultSave = await DataStore.SaveEpisodeItemAsync(episode, true); //returns the number of items changed
if (resultSave != 1)
{
Debug.WriteLine("DownloadService.PodcastFileCompletedAsync Could not Update episode");
}
}
else
{
Debug.WriteLine("DownloadService.PodcastFileCompletedAsync episode was null from GetEpisodeItemByIdAsync");
}
_downloadStatus = DownloadStatus.NotStarted;
await StartDownloadAsync(); //start next download
}
catch (Exception ex)
{
Debug.WriteLine("DownloadService.PodcastFileCompletedAsync Error " + ex.Message);
}
}
private async Task DownloadFinishedAsync(DownloadFinishedMessage message)
{
_downloadStatus = DownloadStatus.DownloadFinished;
var stopMessage = new StopLongRunningTaskMessage();
MessagingCenter.Send(stopMessage, "StopLongRunningTaskMessage"); //stop downloads
var isSuccessful = System.IO.File.Exists(message.FilePath);
if (message.Id > 0 && isSuccessful)
{
switch (message.QueueType)
{
case QueueType.PodcastFile:
await PodcastFileCompletedAsync(message);
break;
case QueueType.ImageFile:
await ImageFileCompletedAsync(message);
break;
case QueueType.RssFeed:
await RssFeedFileCompletedAsync(message);
break;
}
}
else
{
Debug.WriteLine("DownloadService.DownloadFinishedAsync message.Id <= 0 or !isSuccessful");
}
}
public override void DidFinishDownloading(NSUrlSession session, NSUrlSessionDownloadTask downloadTask, NSUrl location)
{
CopyDownloadedImage(location);
var message = new DownloadFinishedMessage()
{
FilePath = targetFileName,
Url = downloadTask.OriginalRequest.Url.AbsoluteString
};
MessagingCenter.Send <DownloadFinishedMessage> (message, "DownloadFinishedMessage");
}
private async Task RssFeedFileCompletedAsync(DownloadFinishedMessage message)
{
try
{
//nothing in particular to do
_downloadStatus = DownloadStatus.NotStarted;
await StartDownloadAsync(); //start next download
}
catch (Exception ex)
{
Debug.WriteLine("DownloadService.RssFeedFileCompletedAsync Error " + ex.Message);
}
}
public override StartCommandResult OnStartCommand(Intent intent, StartCommandFlags flags, int startId)
{
var url = intent.GetStringExtra("url");
Task.Run(() => {
var imageHelper = new ImageHelper();
imageHelper.DownloadImageAsync(url)
.ContinueWith(filePath => {
var message = new DownloadFinishedMessage {
FilePath = filePath.Result
};
MessagingCenter.Send(message, "DownloadFinishedMessage");
});
});
return(StartCommandResult.Sticky);
}