KonectarApp/lib/widgets/eventdetailslistview.dart

import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:flutter/widgets.dart';
import 'package:info_popup/info_popup.dart';
import 'package:konectar_events/utils/util.dart';
import 'package:konectar_events/view/eventstab.dart';
import 'package:konectar_events/widgets/custombutton.dart';
import 'package:konectar_events/widgets/customhcpcard.dart';
import 'package:konectar_events/widgets/custominfopopup.dart';
import 'package:konectar_events/widgets/customtopicscard.dart';
import 'package:konectar_events/widgets/eventdetailscontainer.dart';

class EventsDetailsDataTable extends StatelessWidget {
  TextEditingController selecttextEditingController = TextEditingController();

  Widget build(BuildContext context) {
    return LayoutBuilder(builder: (context, constraints) {
      return SizedBox(
        height: isTablet
            ? MediaQuery.of(context).size.height * 0.75
            : MediaQuery.of(context).size.height * 0.80,
        child: ListView(
          padding: const EdgeInsets.symmetric(horizontal: 2),
          children: [
            PaginatedDataTable(
              dataRowMaxHeight: isTablet ? 120.0 : 120.0,
              showCheckboxColumn: true,
              showEmptyRows: false,
              sortColumnIndex: 1,
              //dataRowMinHeight: 100.0,
              showFirstLastButtons: true,
              columnSpacing: 32.0,
              headingRowHeight: 44,
              // header: SizedBox(
              //   height: 150,
              //   child: Row(
              //     mainAxisAlignment: MainAxisAlignment.spaceBetween,
              //     crossAxisAlignment: CrossAxisAlignment.center,
              //     children: [
              //       Text('Events Speakers'),
              //       CustomButton(
              //         backgroundColor: Colors.green,
              //         onPressed: () {},
              //         textColor: Colors.black,
              //         title: "Add To My Contacts",
              //         fontsize: 16,
              //       )
              //       // const SizedBox(
              //       //   width: 10,
              //       // ),
              //       //
              //     ],
              //   ),
              // ),
              header: buildTextFieldWidget(context),
              rowsPerPage: isTablet ? 4 : 3,
              actions: [],
              columns: [
                DataColumn(
                  label: Center(child: Text(' HCP \n Topics')),
                  onSort: (columnIndex, ascending) {},
                ),
                DataColumn(label: Text('Session Notes')),
                DataColumn(label: Text('Medical Insights')),
                DataColumn(label: Text('Survey')),
                DataColumn(label: Text('Actions')),
              ],
              source: _DataSource(context),
            ),
          ],
        ),
      );
    });
  }

  Widget buildTextFieldWidget(BuildContext context) {
    return SizedBox(
      width: isTablet ? 150 : MediaQuery.of(context).size.width,
      height: isTablet ? 40 : 35,
      child: TextField(
        textAlignVertical: TextAlignVertical.center,
        cursorHeight: 16.0,
        maxLines: 1,
        controller:
            selecttextEditingController, //editing controller of this TextField
        decoration: InputDecoration(
          // border: OutlineInputBorder(),
          hintText: 'Search',

          border: OutlineInputBorder(
            borderRadius: BorderRadius.circular(10.0),
          ),
          hintStyle: const TextStyle(fontSize: 16),
        ),
      ),
    );
  }
}

class _Row {
  _Row(this.name, this.startDate, this.endDate, this.noOfAttendees,
      this.clientAttendees);

  final String name;
  final String startDate;
  final String endDate;
  final int noOfAttendees;
  final int clientAttendees;

  bool selected = false;
}

class _DataSource extends DataTableSource {
  _DataSource(this.context) {
    _rows = <_Row>[
      _Row('Cell A1', '12', '10', 10, 1),
      _Row('Cell A1', '12', '10', 10, 1),
      _Row('Cell A1', '12', '10', 10, 1),
      _Row('Cell A1', '12', '10', 10, 1),
      _Row('Cell A1', '12', '10', 10, 1),
      _Row('Cell A1', '12', '10', 10, 1),
      _Row('Cell A1', '12', '10', 10, 1),
    ];
  }

  final BuildContext context;
  late List<_Row> _rows;

  int _selectedCount = 0;

  @override
  DataRow? getRow(int index) {
    assert(index >= 0);
    if (index >= _rows.length) return null;
    final row = _rows[index];
    return DataRow.byIndex(
      index: index,
      selected: row.selected,
      onSelectChanged: (value) {
        if (row.selected != value) {
          _selectedCount += value! ? 1 : -1;
          assert(_selectedCount >= 0);
          row.selected = value;
          notifyListeners();
        }
      },
      cells: [
        DataCell(eventNameContainer()),
        DataCell(Text(row.startDate)),
        DataCell(Text(row.endDate)),
        DataCell(Text(row.noOfAttendees.toString())),
        DataCell(Text(row.clientAttendees.toString())),
      ],
    );
  }

  @override
  int get rowCount => _rows.length;

  @override
  bool get isRowCountApproximate => false;

  @override
  int get selectedRowCount => _selectedCount;

  Widget eventNameContainer() {
    return Container(
      height: 300,
      child: Row(
        mainAxisAlignment: MainAxisAlignment.spaceBetween,
        children: [
          FittedBox(child: CustomInfoPopup()),
          SizedBox(
            width: 5,
          ),
          Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            mainAxisAlignment: MainAxisAlignment.center,
            children: [
              SizedBox(
                width: isTablet
                    ? MediaQuery.of(context).size.width * 0.50
                    : MediaQuery.of(context).size.width * 0.40,
                child: Text(
                  'Husain Hatim',
                  style: TextStyle(
                    fontWeight: FontWeight.bold,
                    fontSize: 17,
                  ),
                  maxLines: 2,
                  softWrap: true,
                  overflow: TextOverflow.ellipsis,
                ),
              ),
              FittedBox(
                child: InfoPopupWidget(
                  customContent: Container(
                    decoration: BoxDecoration(
                      color: Colors.white,
                      borderRadius: BorderRadius.circular(10),
                    ),
                    padding: EdgeInsets.all(isTablet ? 10 : 5),
                    child: CustomEventTopicsCard(),
                  ),
                  arrowTheme: const InfoPopupArrowTheme(
                    color: Colors.white,
                    arrowDirection: ArrowDirection.down,
                  ),
                  dismissTriggerBehavior: PopupDismissTriggerBehavior.onTapArea,
                  areaBackgroundColor: Colors.transparent,
                  indicatorOffset: Offset.zero,
                  // contentOffset: isTablet ? Offset(100, 100) : Offset(0, 100),
                  onControllerCreated: (controller) {
                    print('Info Popup Controller Created');
                  },
                  onAreaPressed: (InfoPopupController controller) {
                    controller.dismissInfoPopup();
                    print('Area Pressed');
                  },
                  infoPopupDismissed: () {
                    //  Navigator.pop(context);
                    print('Info Popup Dismissed');
                  },
                  onLayoutMounted: (Size size) {
                    print('Info Popup Layout Mounted');
                  },
                  child: SizedBox(
                    width: isTablet
                        ? MediaQuery.of(context).size.width * 0.25
                        : MediaQuery.of(context).size.width * 0.5,
                    child: Text(
                      'Programmed Cell Death 1 Receptor | Human Epidermal Growth Factor Receptor 2 +6more',
                      style: TextStyle(
                          decoration: TextDecoration.underline,
                          decorationColor: Colors.blue,
                          color: Colors.blue,
                          //fontStyle: FontStyle.italic,
                          fontSize: 14),
                    ),
                  ),
                ),
              ),
            ],
          ),
        ],
      ),
    );
  }
}