fcs/lib/widget/products_price_table.dart

import 'package:fcs/model/product_model.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:intl/intl.dart';
import 'package:provider/provider.dart';
import 'package:fcs/model/language_model.dart';
import 'package:fcs/fcs/common/theme.dart';
import 'package:fcs/vo/product.dart';
import 'package:fcs/widget/local_text.dart';
import 'package:fcs/widget/localization/app_translations.dart';

class ProductPriceTable extends StatefulWidget {
  const ProductPriceTable();
  @override
  _ProductPriceTableState createState() => _ProductPriceTableState();
}

class _ProductPriceTableState extends State<ProductPriceTable> {
  final numberFormatter = new NumberFormat("#,###");
  var dateFormatter = new DateFormat('dd MMM yyyy\nhh:mm:ss a');

  @override
  Widget build(BuildContext context) {
    var productModel = Provider.of<ProductModel>(context);

    return Scaffold(
      appBar: AppBar(
        backgroundColor: primaryColor,
        title: Text(
          AppTranslations.of(context).text("products.prices"),
          style: Provider.of<LanguageModel>(context).isEng
              ? TextStyle(fontSize: 18)
              : TextStyle(fontSize: 18, fontFamily: 'MyanmarUnicode'),
        ),
      ),
      body: SingleChildScrollView(
        scrollDirection: Axis.vertical,
        child: SingleChildScrollView(
          scrollDirection: Axis.horizontal,
          child: DataTable(
            columns: [
              DataColumn(label: LocalText(context, "product.update.date")),
              DataColumn(label: LocalText(context, "prodcuts")),
              DataColumn(
                  label: LocalText(context, "products.prices"), numeric: true),
            ],
            rows: getProductRow(productModel.getPrices),
          ),
        ),
      ),
    );
  }

  List<DataRow> getProductRow(List<ProductPrice> productPrices) {
    ProductPrice prev;
    bool isOdd = false;
    return productPrices.map((p) {
      if (prev != null && prev.date.compareTo(p.date) != 0) {
        isOdd = !isOdd;
      }
      var r = DataRow(
        cells: [
          DataCell(
            new Text(dateFormatter.format(p.date),
                style: isOdd ? textStyle : textStyleOdd),
          ),
          DataCell(
            new Text(
              p.name,
              style: isOdd ? textStyle : textStyleOdd,
            ),
          ),
          DataCell(
            new Text(numberFormatter.format(p.price),
                style: isOdd ? textStyle : textStyleOdd),
          ),
        ],
      );
      prev = p;
      return r;
    }).toList();
  }
}