flutter书架形式格口的动态创建（行、列数，是否全选的配置）

根据传入的行列数创建不同格口数量的书架
左图：5行3列、右图：3行3列
在这里插入图片描述
代码

import 'package:jade/bean/experienceStation/ExpCellSpecsBean.dart';
import 'package:jade/configs/PathConfig.dart';
import 'package:jade/utils/DialogUtils.dart';
import 'package:jade/utils/JadeColors.dart';
import 'package:jade/utils/Utils.dart';
import 'package:util/navigator_util.dart';
import 'package:widget/custom_appbar.dart';
import 'package:flutter/material.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';class ExperienceStationCreateCellSpecsSet extends StatefulWidget{final int rowCount; //行数final int columnCount; //列数const ExperienceStationCreateCellSpecsSet({this.rowCount,this.columnCount});@overrideState<StatefulWidget> createState() {// TODO: implement createStatereturn _ExperienceStationCreateCellSpecsSet();}
}class _ExperienceStationCreateCellSpecsSet extends State<ExperienceStationCreateCellSpecsSet>{String _latticeImage = PathConfig.imageLatticeCenter;List<List<ExpCellSpecsBean>> _expCellSpecsList = [];//判断全选static bool _isSelectAll = false;//判断是否是全选或批量设置状态bool _isSelectAllBatch = false;@overridevoid initState() {// TODO: implement initStatesuper.initState();_setList();}@overrideWidget build(BuildContext context) {// TODO: implement buildreturn Scaffold(resizeToAvoidBottomInset: false,backgroundColor: JadeColors.lightGrey,appBar: CustomAppBar(backgroundColor: Colors.white,elevation: 0.2,leading: GestureDetector(onTap: () {Navigator.pop(context);},child: Icon(Icons.arrow_back_ios),),iconTheme: IconThemeData(color: Color(0xff999999)),title: Text('格口规格',style: TextStyle(color: Colors.black),),centerTitle: true,),body: _body(),);}_body(){return Container(margin: EdgeInsets.only(top: 100.w,left: 50.w),child: Column(children: [_selectBtnView(),_bookRackView(),_sureBtn()],));}_selectBtnView(){return Row(children: [GestureDetector(child: Container(height: 45.w,padding: EdgeInsets.symmetric(horizontal: 20.w),alignment: Alignment.center,margin: EdgeInsets.only(right: 30.w),decoration: BoxDecoration(color: _judgeSelectAll() ? JadeColors.grey_10 : JadeColors.blue_2,borderRadius: BorderRadius.circular(10)),child: Text(_judgeSelectAll() ? '取消':'全选',style: TextStyle(color: Colors.white,fontSize: 22.sp),),),onTap: (){_setSelectAll();}),GestureDetector(child: Container(height: 45.w,alignment: Alignment.center,padding: EdgeInsets.symmetric(horizontal: 20.w),decoration: BoxDecoration(color: JadeColors.blue_2,borderRadius: BorderRadius.circular(10)),child: Text('批量设置',style: TextStyle(color: Colors.white,fontSize: 22.sp),),),onTap: (){DialogUtils().fillInCellInfoDialog(context,sureCallBack: (result) {ExpCellSpecsBean resultBean = result;///todo 循环赋给选中的格口//_expCellSpecsList[row][column]setState(() {});});})],);}_bookRackView(){return Container(margin: EdgeInsets.only(top: 40.w,bottom: 40.w),width: Utils().screenWidth(context)- 60.w,height: Utils().screenHeight(context) * 0.6,child: InteractiveViewer(constrained: false,scaleEnabled: false,child: Table(columnWidths: <int, TableColumnWidth>{for (int column = 0; column < widget.columnCount; column += 1)column: const FixedColumnWidth(110),},children: buildRows(widget.rowCount, widget.columnCount),)),);}List<TableRow> buildRows(int rowCount, int columnCount) {return [for (int row = 0; row < rowCount; row += 1)TableRow(children: [for (int column = 0; column < columnCount; column ++)InkWell(child: Container(height: 190.w,decoration: BoxDecoration(image:DecorationImage(image: AssetImage(_setLatticeImage(row,column)),fit: BoxFit.fill, // 完全填充),),child: Stack(children: [Container(alignment: Alignment.center,margin: EdgeInsets.only(top: row == widget.rowCount -1 ? 0 : 30.w,left: column == 0 ? 30.w : 0,right: column == widget.columnCount -1 ? 20.w : 0,),child: Column(mainAxisAlignment: MainAxisAlignment.center,crossAxisAlignment: CrossAxisAlignment.center,children: [GestureDetector(child: Container(padding: EdgeInsets.only(left: 20.w,right: 20.w,top: 6.w,bottom: 6.w),decoration: BoxDecoration(color: _isCellFillInfo(_expCellSpecsList[row][column]) ? JadeColors.blue_2 : Colors.white38,borderRadius: BorderRadius.circular(20),border: Border.all(width: 1,color: JadeColors.blue_2)),child: Text(_isCellFillInfo(_expCellSpecsList[row][column]) ? '查看尺寸':'填写尺寸',style: TextStyle(color: _isCellFillInfo(_expCellSpecsList[row][column]) ? Colors.white : JadeColors.blue_2,fontSize: 24.sp),),),onTap: (){DialogUtils().fillInCellInfoDialog(context,viewedExpCellSpecsBean: _isCellFillInfo(_expCellSpecsList[row][column])? _expCellSpecsList[row][column]: null,sureCallBack: (result) {ExpCellSpecsBean resultBean = result;_expCellSpecsList[row][column].cellHeight = resultBean.cellHeight;_expCellSpecsList[row][column].cellWidth = resultBean.cellWidth;_expCellSpecsList[row][column].cellDepth = resultBean.cellDepth;_expCellSpecsList[row][column].cellPic = resultBean.cellPic;print('填写后的回填：${_expCellSpecsList[row][column].toJson()}');setState(() {});});}),SizedBox(height: 10.w),GestureDetector(child: Container(padding: EdgeInsets.only(left: 20.w,right: 20.w,top: 6.w,bottom: 6.w),decoration: BoxDecoration(color: _expCellSpecsList[row][column].cellPublishStatus == 1 ? Colors.white38 : JadeColors.blue_2,borderRadius: BorderRadius.circular(20),border: Border.all(width: 1,color: JadeColors.blue_2)),child: Text(_expCellSpecsList[row][column].cellPublishStatus == 1 ? '下架格口' : '上架格口',style: TextStyle(color: _expCellSpecsList[row][column].cellPublishStatus == 1 ? JadeColors.blue_2 : Colors.white,fontSize: 24.sp),),),onTap: (){if(_expCellSpecsList[row][column].cellPublishStatus == 1){DialogUtils().commonDescDialog(context,descTitle: '下架格口',desc: '下架后该格口将不能进行交易、售卖。',showCancel: true,sureBtnText: '确认下架',sureBtnTextColor: JadeColors.grey_2,callback: (){setState(() {_expCellSpecsList[row][column].cellPublishStatus = 0;});});}else{setState(() {_expCellSpecsList[row][column].cellPublishStatus = 1;});}}),],)),GestureDetector(child: Container(padding: EdgeInsets.only(left: 2,top: 1,right: 5,bottom: 5),color: Colors.transparent,child: Container(width: 36.w,height: 36.w,alignment: Alignment.center,margin: EdgeInsets.only(top: 14.w,left: 10.w),decoration: BoxDecoration(borderRadius: BorderRadius.circular(4),border: Border.all(width: 1.w,color: Colors.white),color: _expCellSpecsList[row][column].isSelected ? JadeColors.blue_2 : JadeColors.translucent),child: _expCellSpecsList[row][column].isSelected ? Image.asset(PathConfig.iconCheckWhite,width: 20.w,height: 20.w) : Text('${_expCellSpecsList[row][column].num}',style: TextStyle(color: Colors.white,fontSize: 15.sp,fontWeight: FontWeight.bold)),),),onTap: (){setState(() {_expCellSpecsList[row][column].isSelected = !_expCellSpecsList[row][column].isSelected;});_isSelectAll = _judgeSelectAll();})],),),onTap: (){},)],),];}String _setLatticeImage(row,column){if(row == 0 && column == 0){//左上角_latticeImage = PathConfig.imageLatticeTopLeft;}else if(row == 0 && column == widget.columnCount-1){//右上角_latticeImage = PathConfig.imageLatticeTopRight;}else if(row == widget.rowCount -1 && column == 0){//左下角_latticeImage = PathConfig.imageLatticeBottomLeft;}else if(row == widget.rowCount -1 && column == widget.columnCount-1){//右下角_latticeImage = PathConfig.imageLatticeBottomRight;}else if(column==0){_latticeImage = PathConfig.imageLatticeSecondLeft;}else if(column== widget.columnCount-1){_latticeImage = PathConfig.imageLatticeSecondRight;}else if(row == widget.rowCount -1){_latticeImage = PathConfig.imageLatticeSecondBottom;}else {_latticeImage = PathConfig.imageLatticeCenter;}return _latticeImage;}_sureBtn(){return GestureDetector(child: Container(height: 80.w,width: Utils().screenWidth(context) * 0.6,alignment: Alignment.center,decoration: BoxDecoration(borderRadius: BorderRadius.circular(50),color: JadeColors.blue_2,boxShadow: [BoxShadow(color: JadeColors.blue_8,blurRadius: 3.0,offset: Offset(0.0, 3.0),)]),child: Text('确定',style: TextStyle(color: Colors.white,fontSize: 34.sp,fontWeight: FontWeight.w600)),),onTap: (){NavigatorUtil.pop(value: _expCellSpecsList);});}//根据行数、列数配置初始二维数组_setList(){for (int i = 0; i < widget.rowCount; i++) {// 对于每一行，创建一个新的列表来存放该行的列数据List<ExpCellSpecsBean> rowData = [];// 在该行的每一列中添加数据for (int j = 0; j < widget.columnCount; j++) {//计算序号int _number = (i * widget.columnCount) + (j + 1);ExpCellSpecsBean cellSpecs = ExpCellSpecsBean(num: _number);// 将该数据添加到当前行的列表中rowData.add(cellSpecs);}// 将当前行的列表添加到总列表中_expCellSpecsList.add(rowData);}for (var row in _expCellSpecsList) {for (var cell in row) {print('Cell number: ${cell.num}'); // 输出每个CellsBean的序号}}}//设置全选_setSelectAll(){for (var row in _expCellSpecsList) {for (var cell in row) {if(_isSelectAll){cell.isSelected = false;}else{cell.isSelected = true;}}}_isSelectAll = !_isSelectAll;setState(() {});}//判断是否全选bool _judgeSelectAll(){for (var row in _expCellSpecsList) {for (var cell in row) {if(!cell.isSelected){return false;}}}return true;}//判断某格口是否已填写了尺寸信息bool _isCellFillInfo(ExpCellSpecsBean bean){if(bean.cellHeight != null || bean.cellWidth != null || bean.cellDepth != null || bean.cellPic != null){return true;}else{return false;}}}

调用

var result = await NavigatorUtil.push(ExperienceStationCreateCellSpecsSet(rowCount: state.rowCount,columnCount: state.columnCount));if(result != null){//TODO处理逻辑}