private static void addPreferences(PreferenceScreen ps) {
Context cx = ps.getContext();
Resources r = cx.getResources();
ps.setOrderingAsAdded(true);
for (Codec c : codecs) {
ListPreference l = new ListPreference(cx);
l.setEntries(r.getStringArray(R.array.compression_display_values));
l.setEntryValues(r.getStringArray(R.array.compression_values));
l.setKey(c.key());
l.setPersistent(true);
l.setEnabled(!c.isFailed());
c.setListPreference(l);
l.setSummary(l.getEntry());
l.setTitle(c.getTitle());
ps.addPreference(l);
}
}