private void loadBackground(SharedPreferences prefs) {
        background = null;
        String backgroundPath = null;
        try {
        backgroundPath = prefs.getString(
            getString(R.string.background_key), null);
        } catch (ClassCastException cce) {
        backgroundPath = "tmp";
        }
        if (backgroundPath != null) {
        InputStream is = null;
        try {
            is = openFileInput(getString(R.string.background_file));
            background = BitmapFactory.decodeStream(is);
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (OutOfMemoryError oome) {
            Toast.makeText(getApplicationContext(),
                R.string.image_too_large_error, Toast.LENGTH_LONG)
                .show();
        } finally {
            if (is != null) {
            try {
                is.close();
            } catch (IOException e) {
            }
            }
        }
        }
        if (background == null) {
        background = BitmapFactory.decodeResource(getResources(),
            R.drawable.bg);
        }
    }