fcs/lib/pages/quota_form.dart

import 'package:flutter/material.dart';
import 'package:font_awesome_flutter/font_awesome_flutter.dart';
import 'package:provider/provider.dart';
import 'package:fcs/model/language_model.dart';
import 'package:fcs/fcs/common/helpers/theme.dart';
import 'package:fcs/vo/buyer.dart';
import 'package:fcs/widget/local_text.dart';
import 'package:fcs/widget/localization/app_translations.dart';
import 'package:fcs/widget/progress.dart';

class QuotaForm extends StatefulWidget {
  final BuyerProduct buyerProduct;
  const QuotaForm({Key key, this.buyerProduct}) : super(key: key);
  @override
  _QuotaFormState createState() => _QuotaFormState();
}

class _QuotaFormState extends State<QuotaForm> {
  final _formKey = GlobalKey<FormState>();
  TextEditingController _product = new TextEditingController();
  TextEditingController _storageQty = new TextEditingController();
  TextEditingController _saleQty = new TextEditingController();
  TextEditingController _dailyQuota = new TextEditingController();
  TextEditingController _maxQuota = new TextEditingController();

  BuyerProduct buyerProduct;
  bool _isLoading = false;

  @override
  void initState() {
    super.initState();
    if (widget.buyerProduct != null) {
      this.buyerProduct = widget.buyerProduct;
      _product.text = widget.buyerProduct.productName;
      _storageQty.text = widget.buyerProduct.storageCapacityQty == null
          ? ""
          : widget.buyerProduct.storageCapacityQty.toString();
      _saleQty.text = widget.buyerProduct.dailySaleQty == null
          ? ""
          : widget.buyerProduct.dailySaleQty.toString();
      _dailyQuota.text = widget.buyerProduct.dailyQuota == null
          ? ""
          : widget.buyerProduct.dailyQuota.toString();
      _maxQuota.text = widget.buyerProduct.maxQuota == null
          ? ""
          : widget.buyerProduct.maxQuota.toString();
    }
  }

  @override
  Widget build(BuildContext context) {
    var language = Provider.of<LanguageModel>(context);
    final productbox = Container(
        padding: EdgeInsets.only(top: 10),
        child: Row(
          children: <Widget>[
            LocalText(context, "reg.table_product"),
            SizedBox(
              width: 30,
            ),
            Text(_product.text, style: textStyle)
          ],
        ));

    final storageQtybox = Container(
        padding: EdgeInsets.only(top: 10),
        child: Row(
          children: <Widget>[
            LocalText(context, "reg.table_storage_vol"),
            SizedBox(
              width: 30,
            ),
            Text(_storageQty.text, style: textStyle)
          ],
        ));

    final saleQtybox = Container(
        padding: EdgeInsets.only(top: 10),
        child: Row(
          children: <Widget>[
            LocalText(context, "reg.table_sale_vol"),
            SizedBox(
              width: 25,
            ),
            Text(_saleQty.text, style: textStyle)
          ],
        ));

    final dailyQuotaBox = Container(
      child: TextFormField(
        controller: _dailyQuota,
        autofocus: false,
        cursorColor: primaryColor,
        style: textStyle,
        decoration: new InputDecoration(
          labelText: AppTranslations.of(context).text('buyer.quota'),
          labelStyle: language.isEng ? labelStyle : labelStyleMM,
          icon: Icon(
            FontAwesomeIcons.sortNumericUpAlt,
            color: primaryColor,
          ),
          enabledBorder: UnderlineInputBorder(
              borderSide: BorderSide(color: primaryColor, width: 1.0)),
          focusedBorder: UnderlineInputBorder(
              borderSide: BorderSide(color: primaryColor, width: 1.0)),
        ),
        validator: (value) {
          if (value.isEmpty) {
            return "Please enter quota";
          }
          return null;
        },
      ),
    );

    final maxQuotaBox = Container(
      child: TextFormField(
        controller: _maxQuota,
        autofocus: false,
        cursorColor: primaryColor,
        style: textStyle,
        decoration: new InputDecoration(
          labelText: AppTranslations.of(context).text('buyer.max.quota'),
          labelStyle: language.isEng ? labelStyle : labelStyleMM,
          icon: Icon(
            FontAwesomeIcons.sortNumericUpAlt,
            color: primaryColor,
          ),
          enabledBorder: UnderlineInputBorder(
              borderSide: BorderSide(color: primaryColor, width: 1.0)),
          focusedBorder: UnderlineInputBorder(
              borderSide: BorderSide(color: primaryColor, width: 1.0)),
        ),
        validator: (value) {
          if (value.isEmpty) {
            return "Please enter quota";
          }
          return null;
        },
      ),
    );

    return LocalProgress(
      inAsyncCall: _isLoading,
      child: Scaffold(
          appBar: AppBar(
            backgroundColor: primaryColor,
            title: Text("Quota"),
            actions: <Widget>[
              IconButton(
                icon: Icon(Icons.save),
                onPressed: () {
                  if (!_formKey.currentState.validate()) return;
                  buyerProduct.dailyQuota = int.parse(_dailyQuota.text);
                  buyerProduct.maxQuota = int.parse(_maxQuota.text);
                  Navigator.pop(context, buyerProduct);
                },
              )
            ],
          ),
          body: Form(
            key: _formKey,
            child: Container(
              child: ListView(
                shrinkWrap: true,
                padding: EdgeInsets.only(left: 24.0, right: 24.0),
                children: <Widget>[
                  productbox,
                  storageQtybox,
                  saleQtybox,
                  dailyQuotaBox,
                  maxQuotaBox
                ],
              ),
            ),
          )),
    );
  }
}