calorimeter/lib/perday_widget.dart

import 'package:flutter/material.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:kalodings/enter_food_widget.dart';
import 'package:kalodings/food_entry_bloc.dart';
import 'package:kalodings/food_entry_widget.dart';

class PerDay extends StatefulWidget {
  const PerDay({super.key});

  @override
  State<PerDay> createState() => _PerDayState();
}

class _PerDayState extends State<PerDay> {
  String perFoodresult = "Kalorien der Mahlzeit";
  List<FoodEntryWidget> entryList = [];

  @override
  Widget build(BuildContext context) {
    return BlocListener<FoodEntryBloc, FoodEntryState>(
      listener: (listenerContext, state) {
        var newEntryWidgets = <FoodEntryWidget>[];

        for (var entry in state.foodEntries) {
          newEntryWidgets.add(FoodEntryWidget(
              name: entry.name,
              mass: entry.mass,
              kcalPerMass: entry.kcalPerMass));
        }
        setState(() {
          entryList = newEntryWidgets;
        });
      },
      child: ListView.builder(
        itemCount: entryList.length + 1,
        itemBuilder: (BuildContext itemBuilderContext, int index) {
          if (index + 1 == entryList.length + 1) return EnterFoodWidget();
          return entryList[index];
        },
      ),
    );
  }
}