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flutter 参数传一个范型数据
可以一个个的传参数进去，也可以整个范型传值进去
///窗口模型 class ChatDialogModel { BottleModel bottleModel; int type; ChatDialogModel({required this.bottleModel, required this.type}); }- 1
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//范类
/// app_id : "string" /// down_time : 0 /// down_user_id : 0 /// drift_bottle_id : 0 /// level : 0 /// no_read_num : 0 /// status : 0 /// text : "string" /// up_time : 0 /// up_user_id : 0 class BottleModel { BottleModel({ String? appId, int? downTime, int? downUserId, int? driftBottleId, int? level, int? noReadNum, int? status, String? text, int? upTime, int? upUserId, }) { _appId = appId; _downTime = downTime; _downUserId = downUserId; _driftBottleId = driftBottleId; _level = level; _noReadNum = noReadNum; _status = status; _text = text; _upTime = upTime; _upUserId = upUserId; } BottleModel.fromJson(dynamic json) { _appId = json['app_id']; _downTime = json['down_time']; _downUserId = json['down_user_id']; _driftBottleId = json['drift_bottle_id']; _level = json['level']; _noReadNum = json['no_read_num']; _status = json['status']; _text = json['text']; _upTime = json['up_time']; _upUserId = json['up_user_id']; } String? _appId; int? _downTime; int? _downUserId; int? _driftBottleId; int? _level; int? _noReadNum; int? _status; String? _text; int? _upTime; int? _upUserId; BottleModel copyWith({ String? appId, int? downTime, int? downUserId, int? driftBottleId, int? level, int? noReadNum, int? status, String? text, int? upTime, int? upUserId, }) => BottleModel( appId: appId ?? _appId, downTime: downTime ?? _downTime, downUserId: downUserId ?? _downUserId, driftBottleId: driftBottleId ?? _driftBottleId, level: level ?? _level, noReadNum: noReadNum ?? _noReadNum, status: status ?? _status, text: text ?? _text, upTime: upTime ?? _upTime, upUserId: upUserId ?? _upUserId, ); String? get appId => _appId; int? get downTime => _downTime; int? get downUserId => _downUserId; int? get driftBottleId => _driftBottleId; int? get level => _level; int? get noReadNum => _noReadNum; int? get status => _status; String? get text => _text; int? get upTime => _upTime; int? get upUserId => _upUserId; Map<String, dynamic> toJson() { final map = <String, dynamic>{}; map['app_id'] = _appId; map['down_time'] = _downTime; map['down_user_id'] = _downUserId; map['drift_bottle_id'] = _driftBottleId; map['level'] = _level; map['no_read_num'] = _noReadNum; map['status'] = _status; map['text'] = _text; map['up_time'] = _upTime; map['up_user_id'] = _upUserId; return map; } }- 1
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///弹出留言窗口，里面的参数要带上那个范类，required是该数据是必须的 showChatDialog(context, int state, int index, {required ChatDialogModel chatDialogModel}) { showModalBottomSheet( shape: const RoundedRectangleBorder( borderRadius: BorderRadius.only( topLeft: Radius.circular(24), topRight: Radius.circular(24))), isScrollControlled: true, enableDrag: false, backgroundColor: CommonColors.getColorF5F8F5, context: context, builder: (context) => ChatDialog(state, index, chatDialogModel: chatDialogModel))//范型数据传给chatDialog .then((value) { EventBusUtil.fire( OnCloseBottleRefresh(CloudCustomDataBean.TYPE_DRIFT_BOTTLE)); }); }- 1
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ChatDialog里面
import 'dart:async'; import 'dart:convert'; import 'dart:io'; import 'package:flutter/cupertino.dart'; import 'package:flutter/material.dart'; import 'package:oktoast/oktoast.dart'; import 'package:provider/provider.dart'; import 'package:social_im/constant/constant.dart'; import 'package:social_im/logevent/key_events.dart'; import 'package:social_im/logevent/log_event.dart'; import 'package:social_im/pages/moment/dialog/playDisposition.dart'; import 'package:social_im/provider/bottle_provider.dart'; import 'package:social_im/utils/date_util.dart'; import '../../../common/Global.dart'; import '../../../common/avatar.dart'; import '../../../common/colors.dart'; import '../../../common/globalEventBus.dart'; import '../../../generated/l10n.dart'; import '../../../http/api.dart'; import '../../../http/net_callback.dart'; import '../../../http/rxhttp.dart'; import '../../../http/utils/NetUtils.dart'; import '../../../http/utils/response.dart'; import '../../../im/user_info.dart'; import '../../../models/activity/matchUserBean.dart'; import '../../../models/cloudCustomDataBean.dart'; import '../../../router.dart'; import '../../../utils/image_utile.dart'; import '../../../utils/loadingUtil.dart'; import '../../../utils/textfield_util.dart'; import '../../../widget/user_ex_info.dart'; import '../../moment/dialog/matchFriendDialog.dart'; import '../../person/personItemPage/friendFilesPage.dart'; import '../../widget/myText.dart'; import '../../widget/splitLine.dart'; import '../chat_view.dart'; import '../data/bottle_model.dart'; import '../data/reply_list.dart'; import '../data/unlock_user.dart'; ///漂流瓶留言窗口 class ChatDialog extends StatefulWidget { final ChatDialogModel chatDialogModel; int state; int index; ChatDialog(this.state, this.index, {Key? key, required this.chatDialogModel}) : super(key: key); @override State<StatefulWidget> createState() => _ChatDialog(); } class _ChatDialog extends State<ChatDialog> with WidgetsBindingObserver { final TextEditingController _inputController = TextEditingController(); final FocusNode _focusNode = FocusNode(); bool isShowKeyboard = false; double keyboardSize = Global.screenHeight * 0.4; UnlockUser? _unlockUser; ReplyList? replyList; late StreamSubscription<MatchDialogEvent> _matchDialogEvent; @override void initState() { super.initState(); _getUnLockUserInfoStatus(widget.chatDialogModel.type == 0 ? widget.chatDialogModel.bottleModel.upUserId ?? 0 : widget.chatDialogModel.bottleModel.downUserId ?? 0);//可以在这里直接用了 WidgetsBinding.instance!.addObserver(this); //输入框焦点监测 _focusNode.addListener(() { if (_focusNode.hasFocus) { if (MediaQuery.of(context).viewInsets.bottom > 0) { isShowKeyboard = true; } } else { isShowKeyboard = false; } if (mounted) { setState(() {}); } }); _getReplyList( driftBottleId: widget.chatDialogModel.bottleModel.driftBottleId, status: 1, pageTime: DateUtil.getNowDateS(), ); _matchDialogEvent = EventBusUtil.listen((event) { if (event.matchType == 2 && event.playType == PlayDisposition.BOTTLE) { unlockUserInfo(); } }); } //软键盘高度 @override Widget build(BuildContext context) { return GestureDetector( onTap: () { setShowBottomView(); }, child: Container( decoration: BoxDecorationUtil().setFillBoxDecorationImg( 'assets/images/match/bg_match_chat.png'), height: Global.screenHeight - 140, child: Column(mainAxisSize: MainAxisSize.min, children: [ addHeadView(), if (widget.index % 3 == 0) Container( width: MediaQuery.of(context).size.width, alignment: Alignment.centerLeft, margin: const EdgeInsets.only(left: 16, right: 16, bottom: 16), padding: const EdgeInsets.only( left: 16, top: 16, bottom: 16, right: 16), decoration: BoxDecoration( color: const Color(0xFFF8F9FF), borderRadius: BorderRadius.circular(12), boxShadow: const [ BoxShadow(color: Color(0xFFBCC0EE), blurRadius: 3) ]), child: Column( crossAxisAlignment: CrossAxisAlignment.start, children: [ Text( widget.chatDialogModel.bottleModel.text ?? '', style: const TextStyle( color: Color(0xFF333333), fontSize: 18), ), Container( margin: EdgeInsets.only(top: 8), child: Text( DateUtil.formatDateMs( widget.chatDialogModel.bottleModel.downTime! * 1000, format: 'yyyy.MM.dd'), style: const TextStyle( color: Color(0xFF999999), fontSize: 12), ), ), ], )), if (widget.index % 3 == 1) Container( width: MediaQuery.of(context).size.width, alignment: Alignment.centerLeft, margin: const EdgeInsets.only(left: 16, right: 16, bottom: 16), padding: const EdgeInsets.only( left: 16, top: 16, bottom: 16, right: 16), decoration: BoxDecoration( color: const Color(0xFFEDFAFF), borderRadius: BorderRadius.circular(12), boxShadow: const [ BoxShadow(color: Color(0xFFBCE2F1), blurRadius: 3) ]), child: ContentLeftText( widget.chatDialogModel.bottleModel.text ?? '', 14, CommonColors.getColor333333)), if (widget.index % 3 == 2) Container( width: MediaQuery.of(context).size.width, alignment: Alignment.centerLeft, margin: const EdgeInsets.only(left: 16, right: 16, bottom: 16), padding: const EdgeInsets.only( left: 16, top: 16, bottom: 16, right: 16), decoration: BoxDecoration( color: const Color(0xFFFBFFF2), borderRadius: BorderRadius.circular(12), boxShadow: const [ BoxShadow(color: Color(0xFFDBEBB6), blurRadius: 3) ]), child: ContentLeftText( widget.chatDialogModel.bottleModel.text ?? '', 14, CommonColors.getColor333333)), Expanded( child: ChatView( bottleModel: widget.chatDialogModel.bottleModel, )), Container( margin: EdgeInsets.only( left: 15, right: 15, top: 10, bottom: isShowKeyboard ? keyboardSize : 30), padding: const EdgeInsets.only(left: 16), alignment: Alignment.bottomRight, decoration: BoxDecorationUtil() .setFillBoxDecoration(Colors.white, 14.0), child: Row( mainAxisSize: MainAxisSize.max, mainAxisAlignment: MainAxisAlignment.center, crossAxisAlignment: CrossAxisAlignment.center, children: [ Expanded( child: TextField( controller: _inputController, onSubmitted: (s) { // onSubmitted(s, context); }, focusNode: _focusNode, autocorrect: false, textAlign: TextAlign.left, keyboardType: TextInputType.text, textInputAction: TextInputAction.send, cursorColor: CommonColors.getThemeColor(), decoration: const InputDecoration( border: InputBorder.none, isCollapsed: true, isDense: true), style: const TextStyle(fontSize: 14))), GestureDetector( onTap: () { String s = _inputController.text.toString(); if (s == '' || s == null) { return; } ///todo sendMSG _sendreply( widget.chatDialogModel.bottleModel .driftBottleId ?? 0, widget.state, s); _inputController.clear(); }, child: Container( padding: const EdgeInsets.only( top: 12, bottom: 12, right: 19, left: 19), margin: const EdgeInsets.only(left: 16), alignment: Alignment.center, decoration: BoxDecorationUtil() .setFillBoxDecoration( CommonColors.getColor27D6BC, 14.0), child: ContentCenterTextBlod(S.current.send_out, 16.0, Colors.white, FontWeight.normal))) ])) ]))); } Widget addHeadView() { return Container( color: Colors.transparent, padding: const EdgeInsets.only(top: 16, bottom: 13), child: Row(mainAxisSize: MainAxisSize.max, children: [ GestureDetector( onTap: () { closeView(); }, child: const Padding( padding: EdgeInsets.only(left: 16, right: 10), child: Image( image: AssetImage('assets/images/icon_back@2x.png'), width: 24, height: 24))), if (getAvatar() == "") Spacer(), if (getAvatar() != "") GestureDetector( onTap: () {}, child: Padding( padding: const EdgeInsets.only(right: 8), child: PhysicalModel( shape: BoxShape.circle, color: Colors.transparent, borderRadius: BorderRadius.circular(4.8), clipBehavior: Clip.antiAlias, child: Avatar( width: 36, height: 36, radius: 0, avtarUrl: getAvatar(), svgaAvtarUrl: Global.defUserImag)))), if (getSex() != 2 || getBirthday() != -1 || getName() != "") Expanded( child: Column( crossAxisAlignment: CrossAxisAlignment.start, children: [ UserExInfoWidget( nickName: getName(), nickFontSize: 17.0, nickFontColor: CommonColors.getColor1A1A1A, ), Padding( padding: const EdgeInsets.only(top: 2), child: Row( mainAxisSize: MainAxisSize.min, crossAxisAlignment: CrossAxisAlignment.center, children: [ Container( alignment: Alignment.center, margin: const EdgeInsets.only(right: 6), padding: const EdgeInsets.fromLTRB(3, 1, 5, 2), child: Row( mainAxisSize: MainAxisSize.min, children: [ Image( image: AssetImage(getSex() == 1 ? 'assets/images/icon_gender_male.png' : 'assets/images/icon_gender_female.png'), gaplessPlayback: true, width: 11, height: 11), Padding( padding: const EdgeInsets.only(top: 2), child: ContentText( '${UserInfoUtil().getAge(getBirthday())}', 9.0, Colors.white)) ]), decoration: BoxDecorationUtil() .setFillBoxDecoration( getSex() == 1 ? CommonColors.getColor7E8FF7 : CommonColors.getColorF77EBE, 10.0)), Offstage( offstage: true, child: Container( padding: const EdgeInsets.only(right: 6), child: ImageUtile.imageWidget( 'assets/images/vip/icon_vip@2x.png', height: 14))) ])) ])), GestureDetector( onTap: () { setShowBottomView(); Future.delayed(const Duration(milliseconds: 100), () { if (_unlockUser != null) { showUserInfo(); } else { _getUnLockUserInfoStatus( widget.chatDialogModel.type == 0 ? widget.chatDialogModel.bottleModel.upUserId ?? 0 : widget.chatDialogModel.bottleModel.downUserId ?? 0, callBack: () { showUserInfo(); }); } // showUserInfo(playType); }); }, child: const Padding( padding: EdgeInsets.only(left: 10, right: 16), child: Image( image: AssetImage( 'assets/images/match/icon_match_user_info.png'), width: 32, height: 32))) ])); } ///解锁用户信息窗口 showUserInfo() { // if (UserInfoUtil() // .isMyUser('${widget.chatDialogModel.bottleModel.downUserId}')) { // MyRouter.pushMy(context, PersonalFilesPage()); // return; // } // if (_unlockUser?.unlockStatus == 1) { // MyRouter.pushMy( // context, // UserInfoUtil() // .isMyUser('${widget.chatDialogModel.bottleModel.downUserId}') // ? PersonalFilesPage() // : FriendFilesPage( // false, '${widget.chatDialogModel.bottleModel.downUserId}')); // } if (_unlockUser?.unlockStatus == 1) { if (widget.chatDialogModel.type == 0) { MyRouter.pushMy( context, FriendFilesPage( false, '${widget.chatDialogModel.bottleModel.upUserId}')); } else if (widget.chatDialogModel.type != 0) { MyRouter.pushMy( context, FriendFilesPage( false, '${widget.chatDialogModel.bottleModel.downUserId}')); } } else { showModalBottomSheet( shape: const RoundedRectangleBorder( borderRadius: BorderRadius.only( topLeft: Radius.circular(24), topRight: Radius.circular(24))), isScrollControlled: true, enableDrag: false, backgroundColor: CommonColors.getColorF5F8F5, context: context, builder: (context) => MatchFriendDialog( 2, PlayDisposition.BOTTLE, MatchUserBean( userID: _unlockUser?.userInfo?.userId, nickName: _unlockUser?.userInfo?.nickname, avatar: _unlockUser?.userInfo?.avatar, // avatarThumb:_unlockUser?.userInfo?.avatarThumb, sign: _unlockUser?.userInfo?.sign, sex: _unlockUser?.userInfo?.sex, birthday: _unlockUser?.userInfo?.birthday, vipLevel: _unlockUser?.userInfo?.vipLevel // vipExpirationTime:_unlockUser?.userInfo?.vipExpirationTime ))); } } setShowBottomView() { TextFieldUtil.stowTheKeyboard(context); } closeView() { setShowBottomView(); Future.delayed(const Duration(milliseconds: 100), () { Navigator.pop(context); }); } } ///窗口模型 class ChatDialogModel { BottleModel bottleModel; int type; ChatDialogModel({required this.bottleModel, required this.type}); } ///弹出留言窗口 showChatDialog(context, int state, int index, {required ChatDialogModel chatDialogModel}) { showModalBottomSheet( shape: const RoundedRectangleBorder( borderRadius: BorderRadius.only( topLeft: Radius.circular(24), topRight: Radius.circular(24))), isScrollControlled: true, enableDrag: false, backgroundColor: CommonColors.getColorF5F8F5, context: context, builder: (context) => ChatDialog(state, index, chatDialogModel: chatDialogModel)) .then((value) { EventBusUtil.fire( OnCloseBottleRefresh(CloudCustomDataBean.TYPE_DRIFT_BOTTLE)); }); }- 1
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使用方式，调用showChatDialog，传值进去
Expanded( child: TabBarView( controller: _tabController, children: tabs.map((chose) { switch (chose.position) { case 0: return MyThrowBottle( downList: driftBottleList?.downList ?? [], onItemClicked: (index) { showChatDialog(context, 2, index, chatDialogModel: ChatDialogModel( type: 0, bottleModel: driftBottleList ?.downList![index] ?? BottleModel())); }, ); case 1: return MyBottle( upList: driftBottleList?.upList ?? [], onItemClicked: (index) { showChatDialog(context, 1, index, chatDialogModel: ChatDialogModel( type: 1, bottleModel: driftBottleList ?.upList![index] ?? BottleModel())); }); default: return Container(); } }).toList()))- 1
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- 原文地址：https://blog.csdn.net/weixin_44911775/article/details/126094483
