Save byte array of image to file
<p>I try below code to get an URL file's thumbnail.</p>

<pre><code>MediaMetadataRetriever mmr = new MediaMetadataRetriever();
mmr.setDataSource(URL);
byte[] image = mmr.getEmbeddedPicture(); 
</code></pre>

<p>I get the byte array(image) of thumbnail.
And I want to save it as an image file.
How can I do it?</p>
