widget.adapters.* package contains collection of custom adapters.
| ListUrlImageAdapter | Extended Adapter to be implemented when the underlying data need to download images from URLs. |
| ListUrlImageAdapter.Request | A Request object is used to add image url to the queue for download from the web. |
| LoadOnDemandAdapter | Extends Adapter to provide data "on-demand" when used with widgets that supports it,
such as the DuxListView. |