Jisho-Study-Tool/lib/screens/search/search_mechanisms/grade_list.dart

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import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import '../../../../data/grades.dart';
import '../../../../models/themes/theme.dart';
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import '../../../../routing/routes.dart';
import '../../../components/common/loading.dart';
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import '../../../settings.dart';
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class KanjiGradeSearch extends StatefulWidget {
const KanjiGradeSearch({Key? key}) : super(key: key);
@override
_KanjiGradeSearchState createState() => _KanjiGradeSearchState();
}
class _GridItem extends StatelessWidget {
final bool isNumber;
final String text;
const _GridItem({Key? key, required this.text, this.isNumber = false})
: super(key: key);
@override
Widget build(BuildContext context) {
final color = isNumber
? LightTheme.defaultMenuGreyDark
: LightTheme.defaultMenuGreyNormal;
final onTap = isNumber
? () => ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text(text)),
)
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: () => Navigator.popAndPushNamed(
context,
Routes.kanjiSearch,
arguments: text,
);
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return InkWell(
onTap: onTap,
child: Container(
decoration: BoxDecoration(
borderRadius: const BorderRadius.all(Radius.circular(5)),
color: color.background,
),
alignment: Alignment.center,
child: Text(
text,
style: TextStyle(
color: color.foreground,
fontSize: 25,
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).merge(japaneseFont.textStyle),
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),
),
);
}
}
class _KanjiGradeSearchState extends State<KanjiGradeSearch> {
Future<Map<int, Map<int, List<Widget>>>> get gradeWidgets async => compute<
Map<int, Map<int, List<String>>>, Map<int, Map<int, List<Widget>>>>(
(gs) => gs.map(
(grade, sortedByStrokes) => MapEntry(
grade,
sortedByStrokes.map<int, List<Widget>>(
(strokeCount, kanji) => MapEntry(
strokeCount,
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[
_GridItem(text: strokeCount.toString(), isNumber: true),
...kanji.map((k) => _GridItem(text: k)).toList(),
],
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),
),
),
),
grades,
);
Future<Widget> get makeGrids async => SingleChildScrollView(
child: Column(
children: (await Future.wait(
grades.keys.map(
(grade) async => ExpansionTile(
title: Text(grade == 7 ? 'Junior Highschool' : 'Grade $grade'),
maintainState: true,
children: [
GridView.count(
crossAxisCount: 6,
physics: const NeverScrollableScrollPhysics(),
shrinkWrap: true,
mainAxisSpacing: 10,
crossAxisSpacing: 10,
padding: const EdgeInsets.all(10),
children: (await gradeWidgets)[grade]!
.values
.expand((l) => l)
.toList(),
)
],
),
),
))
.toList(),
),
);
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(title: const Text('Choose by grade')),
body: FutureBuilder<Widget>(
future: makeGrids,
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initialData: const LoadingScreen(),
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builder: (context, snapshot) => snapshot.data!,
),
);
}
}