title: Android : BitmapFactory.decodeFile return null... (pathName param verified !)
body: <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>