import 'package:flutter/material.dart'; import '../Method.dart'; const _propertyName = "volumeNextChapter"; late bool _volumeNextChapter; Future initVolumeNextChapter() async { _volumeNextChapter = (await method.loadProperty(_propertyName, "true")) == "true"; } bool volumeNextChapter() { return _volumeNextChapter; } Widget volumeNextChapterSetting() { return StatefulBuilder( builder: (BuildContext context, void Function(void Function()) setState) { return SwitchListTile( title: const Text("双击音量键下一章节"), value: _volumeNextChapter, onChanged: (value) async { await method.saveProperty(_propertyName, "$value"); _volumeNextChapter = value; setState(() {}); }, ); }, ); }