/// <summary>
/// Task canceled here means the app service client is gone
/// </summary>
private void OnTaskCanceled(IBackgroundTaskInstance sender, BackgroundTaskCancellationReason reason)
{
AppServiceDeferral?.Complete();
AppServiceDeferral = null;
Connection = null;
AppServiceDisconnected?.Invoke(this, null);
}
protected override void OnBackgroundActivated(BackgroundActivatedEventArgs args)
{
base.OnBackgroundActivated(args);
if (args.TaskInstance.TriggerDetails is AppServiceTriggerDetails details)
{
if (details.CallerPackageFamilyName == Package.Current.Id.FamilyName)
{
try
{
_appServiceDeferral = args.TaskInstance.GetDeferral();
args.TaskInstance.Canceled += (s, e) =>
{
_appServiceDeferral?.Complete();
_appServiceDeferral = null;
Connection = null;
AppServiceDisconnected?.Invoke(this, null);
};
Connection = details.AppServiceConnection;
AppServiceConnected?.Invoke(this, args.TaskInstance.TriggerDetails as AppServiceTriggerDetails);
_logger.Info("辅助进程服务连接成功");
}
catch (Exception ex)
{
_logger.Error("辅助进程服务连接失败");
_logger.Error(ex);
}
}
}
else
{
_logger.Error("辅助进程服务连接失败");
_logger.Error(args.TaskInstance.TriggerDetails.GetType());
}
}
private void Connection_OnTaskCanceled(IBackgroundTaskInstance sender, BackgroundTaskCancellationReason reason)
{
if (AppServiceDeferral != null)
{
AppServiceDeferral.Complete();
}
AppServiceDisconnected?.Invoke(this, null);
}
