Flutter高仿微信系列共59篇，从Flutter客户端、Kotlin客户端、Web服务器、数据库表结构、Xmpp即时通讯服务器、视频通话服务器、腾讯云服务器全面讲解。

 详情请查看

效果图：

实现代码：

//修改群名
void _updateGroupName(){bool isOwner = false;for(int i = 0; i< _groupUserList.length; i++){GroupUserBean groupUserBean = _groupUserList[i];if(account == groupUserBean.account &&(groupUserBean.accountType == GroupUserBean.ACCOUNT_TYPE_OWNER||groupUserBean.accountType == GroupUserBean.ACCOUNT_TYPE_ADMIN)){isOwner = true;break;}}if(isOwner){Navigator.push(context, MaterialPageRoute(builder: (context) => GroupUpdateName(groupId: widget.groupId)));} else {LoadingDialogUtils.showTipDialog(context, msg : "当前群聊仅群主/群管理员可以修改群聊名称");}}

/*** Author : wangning* Email : maoning20080809@163.com* Date : 2022/11/15 14:13* Description : 修改群名*/class GroupUpdateName extends StatefulWidget {String groupId;GroupUpdateName({required this.groupId});@override_GroupUpdateNameState createState() => _GroupUpdateNameState();}class _GroupUpdateNameState extends State {TextEditingController? _groupNameController;//修改群名void _processUpdateName(String groupName) async {bool isNetwork = await CommonNetwork.isNetwork();if(!isNetwork) {CommonUtils.showNetworkError(context);return;}if(_groupBean!= null){_groupBean?.groupName = groupName;bool isSuccess = await GroupRepository.getInstance().updateGroupServer(_groupBean!);if(isSuccess){CommonToast.show(context, "修改成功！");GroupRepository.getInstance().updateGroup(_groupBean!);eventBus.emit(BaseEvent(BaseEvent.TYPE_REFRESH_GROUP, result: HashMap()));Navigator.pop(context);} else {CommonToast.show(context, "修改失败！");}}}GroupBean? _groupBean;//初始化群名void _initGroup() async{_groupBean = await GroupRepository.getInstance().findGroupByGroupId(widget.groupId);_groupNameController = TextEditingController(text: "${_groupBean?.groupName}");setState(() {});}@overridevoid initState() {super.initState();_initGroup();}@overrideWidget build(BuildContext context) {return Scaffold(appBar: WnAppBar.getAppBar(context, Text("修改群名")),body: Container(height: 200,child: Column(children: [SizedBox(height: 30,),Expanded(child: Container(margin: EdgeInsets.only(left: 12, right: 12),width: double.infinity,child: Row(children: [Text("群名："),Expanded(child:customTextField(defaultValue: '${_groupBean?.groupName}',textEditController: _groupNameController,),),],),)),SizedBox(height: 30,),Container(alignment: AlignmentDirectional.center,child: _updateNameWidget(),),],),),);}Widget customTextField({TextEditingController? textEditController,String? hintText,String? defaultValue,}) {return TextField(controller: textEditController,cursorColor: Colors.black,decoration: InputDecoration(//labelText: defaultValue,//hintText: hintText,hintStyle: TextStyle(fontSize: 16,color: Colors.grey.withOpacity(0.8),),focusedBorder: OutlineInputBorder(borderSide: const BorderSide(color: Colors.black),borderRadius: BorderRadius.circular(5.0),),enabledBorder: OutlineInputBorder(borderRadius: BorderRadius.circular(5.0),borderSide: BorderSide(color: Colors.grey,),),),style: TextStyle(fontSize: 16,color: Colors.black,fontWeight: FontWeight.w500,),);}Widget _updateNameWidget() {return MaterialButton(color: Colors.blue,textColor: Colors.white,padding: EdgeInsets.only(left: 28, top: 8, right: 28, bottom: 8),child: Text('修改', style: TextStyle(fontSize: 16),),onPressed: () {var nickName = _groupNameController?.text??"";_processUpdateName(nickName);},);}
}