poor gallery scrolling performance when using a background image
<p>I am currently using a modified Gallery widget that contains ImageView's.  The ImageView's have bitmap's with many transparent pixels.</p>

<p>If I set a background png image to an activity or window, the gallery is very choppy.  If I set a solid background color, it is silky smooth.</p>

<p>I'm guessing this has something to do with the calculations done with the transparent pixels on the gallery images.</p>

<p>I have tried removing the transparency layer on the background png and also tried an 8 bit png.</p>

<p>I have also tried changing the Window PixelFormat to RGB_565 and OPAQUE.</p>

<p>Lastly, I have tried making a proxy image xml for my background setting dithering to true and false.</p>

<p>Does anyone have any ideas?</p>
