Android : BitmapFactory.decodeFile return null... (pathName param verified !)
<p>I don't understand and find why my decodeFile method return null ... here my (very simple) code : </p>

<pre><code>...
File f = new File(dataString);
photo_bitmap = BitmapFactory.decodeFile(f.getAbsolutePath());
Log.i("Data... : ", dataString); //show  "/external/images/media/832"
Log.i("arbre.getString File : ", f.getAbsolutePath()); //show  "/external/images/media/832"
if (photo_bitmap == null) Log.i("BITMAP", "BITMAP IS NULL"); //show this if...my Bitmap is null, why ? 
photo_string = BitMapToString(photo_bitmap); //then java.lang.NullPointerException :/
photo_string = photo_string.substring(0, 10);
...
</code></pre>

<p>Thanks for help :)</p>
