PropertiesActivity.java 文件源码

private void initSummaries(PreferenceGroup pg) {
    for (int i = 0; i < pg.getPreferenceCount(); ++i) {
        Preference p = pg.getPreference(i);
        if (p instanceof PreferenceGroup)
            initSummaries((PreferenceGroup) p);
        else
            setSummary(p, false);
        if (p instanceof PreferenceScreen)
            p.setOnPreferenceClickListener(this);
    }
}