如何在"首选项"摘要中显示Android首选项的当前值？

<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
    <Preference
        android:key="example_preference"
        android:title="Example Preference"
        android:summary="%s"
        android:defaultValue="Default Value" />
</PreferenceScreen>

SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
String preferenceValue = sharedPreferences.getString("example_preference", "Default Value");
Preference preference = findPreference("example_preference");
preference.setSummary(preferenceValue);