PreferencesDecorator.java 文件源码

protected void decorateListPreference(final ListPreference listPrefs) {
    final CharSequence summary = listPrefs.getSummary();
    summaries.put(listPrefs.getKey(), summary);

    final String value = listPrefs.getValue();

    setListPreferenceSummary(listPrefs, value);

    addListener(listPrefs, new OnPreferenceChangeListener() {

        @Override
        public boolean onPreferenceChange(final Preference preference, final Object newValue) {
            setListPreferenceSummary(listPrefs, (String) newValue);
            return true;
        }
    });
}