<span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../com/bumptech/glide/load/data/DataFetcher.html#loadData-com.bumptech.glide.Priority-com.bumptech.glide.load.data.DataFetcher.DataCallback-">DataFetcher</a></code></span></div>
<div class="block">Fetch data from which a resource can be decoded.

 <p> This will always be called on background thread so it is safe to perform long running tasks
 here. Any third party libraries called must be thread safe (or move t