SettingsActivity.java 文件源码

private void initPrefSummary() {
    sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this.getActivity());

    for (int i = 0; i < getPreferenceScreen().getPreferenceCount(); ++i) {
        Preference preference = getPreferenceScreen().getPreference(i);

        if (preference instanceof PreferenceCategory) {
            PreferenceCategory pGrp = (PreferenceCategory) preference;
            for (int j = 0; j < pGrp.getPreferenceCount(); j++) {
                updatePrefSummary(pGrp.getPreference(j));
            }
        } else {
            updatePrefSummary(preference);
        }
    }
}