private void InitDownloadManager()
{
lock (_lock)
{
if (downloadManager == null)
{
DownloaderConstructorHelper downloaderConstructorHelper = new DownloaderConstructorHelper(
GetDownloadCache(),
BuildHttpDataSourceFactory(/* listener= */ null));
downloadManager =
new Offline.DownloadManager(
downloaderConstructorHelper,
MAX_SIMULTANEOUS_DOWNLOADS,
Offline.DownloadManager.DefaultMinRetryCount,
new File(GetDownloadDirectory(), DOWNLOAD_ACTION_FILE),
DOWNLOAD_DESERIALIZERS);
downloadTracker =
new DownloadTracker(
/* context= */ this,
BuildDataSourceFactory(/* listener= */ null),
new File(GetDownloadDirectory(), DOWNLOAD_TRACKER_ACTION_FILE),
DOWNLOAD_DESERIALIZERS);
downloadManager.AddListener(downloadTracker);
}
}
}
public void OnTaskStateChanged(Offline.DownloadManager downloadManager, TaskState taskState)
{
DownloadAction action = taskState.Action;
android.Net.Uri uri = action.Uri;
if ((action.IsRemoveAction && taskState.State == TaskState.StateCompleted) ||
(!action.IsRemoveAction && taskState.State == TaskState.StateFailed))
{
// A download has been removed, or has failed. Stop tracking it.
if (trackedDownloadStates.Remove(uri.ToString()) != false)
{
HandleTrackedDownloadStatesChanged();
}
}
}
public void OnIdle(Offline.DownloadManager downloadManager)
{
// Do nothing.
}
// DownloadManager.Listener
public void OnInitialized(Offline.DownloadManager downloadManager)
{
// Do nothing.
}