"class or interface in android.graphics"><code>Bitmap</code></a> of exactly the given width, height, and
 configuration, and containing only transparent pixels.

 <p> If no Bitmap with the requested attributes is present in the pool, a new one will be
 allocated. </p>

 <p> Because this method erases all pixels in the <a href="http://d.android.com/reference/android/graphics/Bitmap.html?is-external=true" title="class or interface in android.graphics"><code>Bitmap</code></a>, this method is slightly slower
 t