import 'package:flutter/material.dart'; import '../Method.dart'; var _imageAddresses = { "0": "不分流", "1": "分流1 (推荐)", "2": "分流2", "3": "分流3", "4": "分流4", "5": "分流5", "6": "分流6", }; late String _currentImageAddress; Future initImageAddress() async { _currentImageAddress = await method.getImageSwitchAddress(); } int currentImageAddress() { return int.parse(_currentImageAddress); } String currentImageAddressName() => _imageAddresses[_currentImageAddress] ?? ""; Future chooseImageAddress(BuildContext context) async { String? choose = await showDialog( context: context, builder: (BuildContext context) { return SimpleDialog( title: const Text('选择图片分流'), children: [ ..._imageAddresses.entries.map( (e) => SimpleDialogOption( child: Text(e.value), onPressed: () { Navigator.of(context).pop(e.key); }, ), ), ], ); }, ); if (choose != null) { await method.setImageSwitchAddress(choose); _currentImageAddress = choose; } } Widget imageSwitchAddressSetting() { return StatefulBuilder( builder: (BuildContext context, void Function(void Function()) setState) { return ListTile( title: const Text("图片分流"), subtitle: Text(currentImageAddressName()), onTap: () async { await chooseImageAddress(context); setState(() {}); }, ); }, ); }