PreferencesFragment.java 文件源码

private void initUpdatePrivilegedExtensionPreference() {
    if (Build.VERSION.SDK_INT > 19) {
        // this will never work on newer Android versions, so hide it
        PreferenceCategory other = (PreferenceCategory) findPreference("pref_category_other");
        other.removePreference(updatePrivilegedExtensionPref);
        return;
    }
    updatePrivilegedExtensionPref.setPersistent(false);
    updatePrivilegedExtensionPref.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() {

        @Override
        public boolean onPreferenceClick(Preference preference) {
            // Open details of F-Droid Privileged
            Intent intent = new Intent(getActivity(), AppDetails2.class);
            intent.putExtra(AppDetails2.EXTRA_APPID,
                    PrivilegedInstaller.PRIVILEGED_EXTENSION_PACKAGE_NAME);
            startActivity(intent);

            return true;
        }
    });
}