So erstellen Sie Platz zwischen der Liste auf Flattern
import 'package:flutter/material.dart';
void main() => runApp(const MyApp());
class MyApp extends StatelessWidget {
const MyApp({Key? key}) : super(key: key);
static const String _title = 'Flutter Code Sample';
@override
Widget build(BuildContext context) {
return MaterialApp(
title: _title,
home: Scaffold(
appBar: AppBar(title: const Text(_title)),
body: const MyStatefulWidget(),
),
);
}
}
class MyStatefulWidget extends StatefulWidget {
const MyStatefulWidget({Key? key}) : super(key: key);
@override
State<MyStatefulWidget> createState() => _MyStatefulWidgetState();
}
class _MyStatefulWidgetState extends State<MyStatefulWidget> {
final List<int> _items = List<int>.generate(50, (int index) => index);
@override
Widget build(BuildContext context) {
final ColorScheme colorScheme = Theme.of(context).colorScheme;
final Color oddItemColor = colorScheme.primary.withOpacity(0.05);
final Color evenItemColor = colorScheme.primary.withOpacity(0.15);
return ReorderableListView(
padding: const EdgeInsets.symmetric(horizontal: 40),
children: <Widget>[
for (int index = 0; index < _items.length; index++)
Column(
key: Key('$index'),
children: [
ListTile(
tileColor: _items[index].isOdd ? oddItemColor : evenItemColor,
title: Text('Item ${_items[index]}'),
),
SizedBox(
height: 5,
),
],
),
],
onReorder: (int oldIndex, int newIndex) {
setState(() {
if (oldIndex < newIndex) {
newIndex -= 1;
}
final int item = _items.removeAt(oldIndex);
_items.insert(newIndex, item);
});
},
);
}
}
Mushy Manx
