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@talamaska
Forked from daveols/main.dart
Created March 10, 2023 13:34
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Scrollable tabs within DraggableScrollableSheet
import 'package:flutter/material.dart';
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
home: MyHomePage(),
);
}
}
class MyHomePage extends StatefulWidget {
MyHomePage({Key key}) : super(key: key);
@override
_MyHomePageState createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
@override
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: Colors.black,
body: DraggableScrollableSheet(
initialChildSize: 0.6,
maxChildSize: 0.9,
minChildSize: 0.6,
builder: (context, scrollController) => DefaultTabController(
length: 2,
child: _buildNestedScrollView(scrollController),
// child: _buildFlatCustomScrollView(scrollController),
// child: _buildTabsCustomScrollView(scrollController),
),
),
);
}
NestedScrollView _buildNestedScrollView(ScrollController scrollController) {
return NestedScrollView(
// controller: scrollController,
headerSliverBuilder: (context, innerBoxIsScrolled) {
print('innerBoxIsScrolled $innerBoxIsScrolled');
return [
SliverOverlapAbsorber(
handle: NestedScrollView.sliverOverlapAbsorberHandleFor(context),
sliver: SliverAppBar(
toolbarHeight: 0.0,
pinned: true,
primary: false,
forceElevated: innerBoxIsScrolled,
bottom: TabBar(
tabs: [
Tab(text: 'Foo'),
Tab(text: 'Bar'),
],
),
),
),
];
},
body: TabBarView(
children: [
ListView.builder(
controller: scrollController,
physics: ClampingScrollPhysics(),
padding: EdgeInsets.zero,
itemBuilder: (context, index) => Container(
color: Colors.primaries[index % 10],
height: 150.0,
),
),
ListView.builder(
// controller: scrollController,
physics: ClampingScrollPhysics(),
padding: EdgeInsets.zero,
itemBuilder: (context, index) => Container(
color: Colors.primaries[index % 10],
height: 25.0,
),
),
],
),
);
}
CustomScrollView _buildTabsCustomScrollView(
ScrollController scrollController) {
return CustomScrollView(
// controller: scrollController,
physics: ClampingScrollPhysics(),
slivers: [
SliverAppBar(
toolbarHeight: 0.0,
pinned: true,
primary: false,
bottom: TabBar(
tabs: [
Tab(text: 'Foo'),
Tab(text: 'Bar'),
],
),
),
SliverFillRemaining(
child: TabBarView(
children: [
ListView.builder(
controller: scrollController,
physics: ClampingScrollPhysics(),
padding: EdgeInsets.zero,
itemBuilder: (context, index) => Container(
color: Colors.primaries[index % 10],
height: 150.0,
),
),
ListView.builder(
controller: scrollController,
physics: ClampingScrollPhysics(),
padding: EdgeInsets.zero,
itemBuilder: (context, index) => Container(
color: Colors.primaries[index % 10],
height: 25.0,
),
),
],
),
)
],
);
}
CustomScrollView _buildFlatCustomScrollView(
ScrollController scrollController) {
return CustomScrollView(
controller: scrollController,
physics: ClampingScrollPhysics(),
slivers: [
SliverAppBar(
toolbarHeight: 0.0,
pinned: true,
primary: false,
bottom: TabBar(
tabs: [
Tab(text: 'Foo'),
Tab(text: 'Bar'),
],
),
),
SliverList(
delegate: SliverChildBuilderDelegate(
(context, index) {
return Container(
color: Colors.primaries[index % 10],
height: 150.0,
);
},
),
)
],
);
}
}
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