import 'package:flutter/material.dart';

void main() {
  runApp(Demo());
}

class Demo extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        body: SliverAppBarPage(),
      ),
    );
  }
}

class SliverAppBarPage extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return CustomScrollView(
      slivers: [
        SliverAppBar(
          automaticallyImplyLeading: false,
          pinned: true,
          expandedHeight: 200,
          flexibleSpace: Padding(
            padding: EdgeInsets.all(40),
            child: Text(
              'In TalkBack, on Android, I can be swiped to, but not '
              'tapped on (explore by touch).',
            ),
          ),
        ),
        SliverList(
          delegate: SliverChildListDelegate([
            for (var i = 0; i < 20; i++)
              Container(
                height: 50,
                child: Center(child: Text('Text')),
              ),
          ]),
        ),
      ],
    );
  }
}