UsbDevicePreferences.java 文件源码

private void resetList() {
    getPreferenceScreen().removeAll();
    addPreferencesFromResource(R.xml.usb_device_preferences);

    PreferenceScreen preferenceScreen = getPreferenceScreen();
    Preference header = preferenceScreen.findPreference(PREF_OBJECT_NAME);
    header.setTitle(mUsbInfo.getName());
    header.setOnPreferenceClickListener(this);

    for (int i = 0; i < mSites.size(); ++i) {
        Website site = mSites.get(i);
        Preference preference = new WebsitePreference(getActivity(), site, mCategory);
        preference.getExtras().putSerializable(SingleWebsitePreferences.EXTRA_SITE, site);
        preference.setFragment(SingleWebsitePreferences.class.getCanonicalName());
        preferenceScreen.addPreference(preference);
    }

    // Force this list to be reloaded if the activity is resumed.
    mSites = null;
}