HomeServer/frontend/lib/states/home_page.dart

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import 'package:flutter/material.dart';
import 'package:flutter_spinkit/flutter_spinkit.dart';
import '../devices/devices.dart';
class MyHomePage extends StatefulWidget {
const MyHomePage({super.key, required this.title});
final String title;
@override
State<MyHomePage> createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
List<bool> expanded = [];
@override
Widget build(BuildContext context) {
return FutureBuilder<List<Category>>(
future: Category.fetch(),
builder: (context, AsyncSnapshot<List<Category>> categories) {
if (!categories.hasData) {
return SpinKitWanderingCubes(
color: Colors.deepPurple[100],
size: 80.0,
);
}
final data = categories.data!;
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final categoryCount = data.length;
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if (categoryCount > expanded.length) {
final int diff = categoryCount - expanded.length;
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final List<bool> diffList = List<bool>.filled(diff, true);
expanded.addAll(diffList);
} else if (categoryCount < expanded.length) {
final int diff = expanded.length - categoryCount;
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expanded = List<bool>.filled(diff, false);
}
return Scaffold(
appBar: AppBar(
backgroundColor: Theme.of(context).colorScheme.inversePrimary,
title: Text(widget.title),
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actions: [
IconButton(
icon: const Icon(Icons.auto_graph_outlined),
onPressed: () =>
Navigator.of(context).pushReplacementNamed(
'/graphs',
)),
IconButton(
icon: const Icon(Icons.refresh_outlined),
onPressed: () {})
],
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),
body: Column(children: [
Container(
margin: const EdgeInsets.all(15.0),
padding: const EdgeInsets.all(15.0),
child: ExpansionPanelList(
expansionCallback: (int index, bool expand) {
setState(() {
expanded[index] = expand;
});
},
children: data.asMap().entries.map(
(category) {
final CategoryWidget widget =
CategoryWidget(category: category.value);
return ExpansionPanel(
headerBuilder:
(BuildContext context, bool isExpanded) {
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return ListTile(
title: Text(widget.category.Name()));
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},
body: widget,
isExpanded: expanded[category.key],
backgroundColor: Colors.deepPurple[100],
canTapOnHeader: true,
);
},
).toList()))
]));
});
}
}