public static void openForSettingsLink(final Uri uri, final Context fromActivity) {
        final Intent intent = new Intent(Intent.ACTION_VIEW, uri, fromActivity, SettingsActivity.class);
        fromActivity.startActivity(intent);
    }
This method sets the fragment given by its base key,
and optionally starts scrolling to a preference identified by its key
main/src/main/java/cgeo/geocaching/settings/SettingsActivity.java