private void DisposeCacheController()
{
if (_cacheController != null)
{
_cacheController.OnProgressChanged -= _cacheController_OnProgressChanged;
_cacheController.OnCacheLoadingStarted -= _cacheController_OnCacheLoadingStarted;
_cacheController.OnCacheLoadingAborted -= _cacheController_OnCacheLoadingAborted;
_cacheController.OnCacheLoadingCompleted -= _cacheController_OnCacheCompleted;
_cacheController.Dispose();
}
}