w in the list where the resources will be displayed in pixels in
 the format [x, y], or <code>null</code> if no size is currently available.

 <p>Note - The dimensions returned here must precisely match those of the view in the list.

 <p>If this method returns <code>null</code>, then no request will be started for the given item.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../com/bumptech/glide/ListPreloader.PreloadSizeProvider.html#getPreloadSize