fetch a resource of a
 specific size.

 This not only avoids having to duplicate dimensions in xml and in your code in order to determine
 the size of a view on devices with different densities, but also allows you to use layout weights
 or otherwise programmatically put the dimensions of the view without forcing you to fetch a
 generic resource size.

 The smaller the resource you fetch, the less bandwidth and battery life you use, and the lower
 your memory footprint per resource. </p></div>
</li>
</ul>
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