ImageButton showing artifacts in transparent image
<p>I have a layout like this:</p>

<pre><code>&lt;LinearLayout android:background="mybackgroundimage.jpg"&gt;
    ...
    &lt;LinearLayout android:weight=1&gt; &lt;!-- another layout to group the 
               images below and give it weight=1 --&gt;
        &lt;ImageButton android:background="item1bg.png" .../&gt;
        &lt;ImageButton android:background="item2bg.png" .../&gt;
    &lt;/LinearLayout&gt;
&lt;/LinearLayout&gt;
</code></pre>

<p>The images item1bg and item2bg fade from full image to completely transparent. 
The desired effect is to have the image blending to the background. </p>

<p>I've verified the images and they look OK when you open them with whatever. But when applied in the button, they show artifacts in the blending section: some green vertical transparent lines. </p>

<p>I tried setAlpha(0) but the artifacts remain.</p>

<p>Any ideas on why this happens and/or how to solve it? </p>

<p>Thanks!
Llappall</p>
