如何在PreferenceFragmentCompat中使用SummaryProvider更新首选项？

public class MyPreferenceFragment extends PreferenceFragmentCompat {

    @Override
    public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
        addPreferencesFromResource(R.xml.preferences);
    }

    @Override
    public void onResume() {
        super.onResume();

        Preference preference = findPreference("key_of_preference");
        preference.setSummaryProvider(new Preference.SummaryProvider() {
            @Override
            public CharSequence provideSummary(Preference preference) {
                // 获取首选项的值
                String value = preference.getSharedPreferences().getString(preference.getKey(), "");

                // 根据值返回需要显示的概要信息
                if (value.equals("some_value")) {
                    return "Some summary";
                } else {
                    return "Other summary";
                }
            }
        });
    }
}