SettingsFragment.java 文件源码

@Override
public void onCreatePreferences(Bundle bundle, String s) {
    // Add 'general' preferences, defined in the XML file
    addPreferencesFromResource(R.xml.pref_general);

    SharedPreferences sharedPreferences = getPreferenceScreen().getSharedPreferences();
    PreferenceScreen prefScreen = getPreferenceScreen();
    int count = prefScreen.getPreferenceCount();
    for (int i = 0; i < count; i++) {
        Preference p = prefScreen.getPreference(i);
        if (!(p instanceof CheckBoxPreference)) {
            String value = sharedPreferences.getString(p.getKey(), "");
            setPreferenceSummary(p, value);
        }
    }
}