Scrollbar
sample.packages.flutter.lib.src.material.scrollbar.38.
This sample shows a [Scrollbar] that executes a fade animation as scrolling occurs. The Scrollbar will fade into view as the user scrolls, and fade out when scrolling stops.
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 MyStatelessWidget(),
),
);
}
}
class MyStatelessWidget extends StatelessWidget {
const MyStatelessWidget({Key? key}) : super(key: key);
@override
Widget build(BuildContext context) {
return Scrollbar(
child: GridView.builder(
itemCount: 120,
gridDelegate:
const SliverGridDelegateWithFixedCrossAxisCount(crossAxisCount: 3),
itemBuilder: (BuildContext context, int index) {
return Center(
child: Text('item $index'),
);
},
),
);
}
}
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