/// <summary>
/// Agent that runs a scheduled task
/// </summary>
/// <param name="task">
/// The invoked task
/// </param>
/// <remarks>
/// This method is called when a periodic or resource intensive task is invoked
/// </remarks>
protected override async void OnInvoke(ScheduledTask task)
{
Debug.WriteLine("Start: {0}", DeviceStatus.ApplicationPeakMemoryUsage);
//Only run when there is internet connection
if (DeviceNetworkInformation.IsNetworkAvailable &&
(DeviceNetworkInformation.IsWiFiEnabled || DeviceNetworkInformation.IsCellularDataEnabled))
{
if (LockScreenManager.IsProvidedByCurrentApplication)
{
string fileName = "lastUpdate";
Q42.WinRT.Storage.StorageHelper <DateTime?> sh = new Q42.WinRT.Storage.StorageHelper <DateTime?>(Q42.WinRT.Storage.StorageType.Local);
var lastUpdate = await sh.LoadAsync(fileName);
if (!lastUpdate.HasValue ||
lastUpdate.Value.Date != DateTime.Now.Date)
{
// Get the URI of the lock screen background image.
// NOTE: GetImageUri throws is the app is not the current application
var currentImage = LockScreen.GetImageUri();
Debug.WriteLine("Start GetWeblUriAsync: {0}", DeviceStatus.ApplicationPeakMemoryUsage);
var url = await CustomRijksService.GetWeblUriAsync();
Debug.WriteLine("Finish GetWeblUriAsync: {0}", DeviceStatus.ApplicationPeakMemoryUsage);
FreeMemory();
string key = "A.jpg";
if (currentImage.AbsolutePath.Contains("A.jpg"))
{
key = "B.jpg";
}
//Check if it's not already the current image
//if (!currentImage.AbsolutePath.Contains(url.ToCacheKey()))
// {
//currentImage = null;
Debug.WriteLine("Start GetLocalImagePath: {0}", DeviceStatus.ApplicationPeakMemoryUsage);
await CustomRijksService.GetLocalImagePath(url, key);
Debug.WriteLine("Finish GetLocalImagePath: {0}", DeviceStatus.ApplicationPeakMemoryUsage);
url = null;
FreeMemory();
// Set the lock screen background image.
Windows.Phone.System.UserProfile.LockScreen.SetImageUri(new Uri("ms-appdata:///Local/" + key, UriKind.Absolute));
await sh.SaveAsync(DateTime.Now, fileName);
//}
}
}
//else
//{
// // Do cleanup, since we are no longer the active lock screen provider.
// // This could be: delete images, stop the agent, etc...
// var periodicTask = ScheduledActionService.Find(task.Name) as PeriodicTask;
// if (periodicTask != null)
// {
// try
// {
// ScheduledActionService.Remove(task.Name);
// }
// catch (Exception)
// {
// }
// }
//}
// If debugging is enabled, launch the agent again in one minute.
// debug, so run in every 30 secs
#if (DEBUG)
//ScheduledActionService.LaunchForTest(task.Name, TimeSpan.FromSeconds(15));
//System.Diagnostics.Debug.WriteLine("Periodic task is started again: " + task.Name);
#endif
}
Debug.WriteLine("PEAK: {0}", DeviceStatus.ApplicationPeakMemoryUsage);
// Call NotifyComplete to let the system know the agent is done working.
NotifyComplete();
}
