Вы можете скопировать и вставить полный код ниже
Вы можете использовать пакет https://pub.dev/packages/expandable
С controller
вы можете вручную установить expanded
на false
или true
Так вы можете добиться свертывания других
фрагмент кода
List<ExpandableController> controllerList = [
ExpandableController(),
ExpandableController(),
ExpandableController()
];
ExpandablePanel(
controller: controllerList[2],
for (int i = 0; i < controllerList.length; i++) {
if (i == currentIndex) {
controllerList[i].expanded = true;
} else {
controllerList[i].expanded = false;
}
}
ScrollOnExpand(
scrollOnExpand: true,
scrollOnCollapse: false,
child: ExpandablePanel(
theme: const ExpandableThemeData(
...
header: Container(
color: Colors.blue,
...
collapsed: Container(),
expanded: Container(
color: Colors.white,
child: Padding(
padding: EdgeInsets.all(10),
child: Column(
рабочая демонстрация
введите описание изображения здесь
полный код
import 'package:expandable/expandable.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'dart:math' as math;
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Expandable Demo',
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: MyHomePage(),
);
}
}
class MyHomePage extends StatefulWidget {
@override
State createState() {
return MyHomePageState();
}
}
class MyHomePageState extends State<MyHomePage> {
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text("Expandable Demo"),
),
body: ExpandableTheme(
data: const ExpandableThemeData(
iconColor: Colors.blue,
useInkWell: true,
),
child: ListView(
physics: const BouncingScrollPhysics(),
children: <Widget>[
Card1(),
Card2(),
Card3(),
],
),
),
);
}
}
const loremIpsum =
"Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.";
List<ExpandableController> controllerList = [
ExpandableController(),
ExpandableController(),
ExpandableController()
];
int currentIndex = -1;
class Card1 extends StatelessWidget {
@override
Widget build(BuildContext context) {
return ExpandableNotifier(
child: Padding(
padding: const EdgeInsets.all(10),
child: Card(
color: Colors.blue,
clipBehavior: Clip.antiAlias,
child: Column(
children: <Widget>[
ScrollOnExpand(
scrollOnExpand: true,
scrollOnCollapse: false,
child: ExpandablePanel(
controller: controllerList[0],
theme: const ExpandableThemeData(
iconColor: Colors.white,
headerAlignment: ExpandablePanelHeaderAlignment.center,
tapBodyToCollapse: true,
),
header: InkWell(
onTap: () {
currentIndex = 0;
for (int i = 0; i < controllerList.length; i++) {
if (i == currentIndex) {
controllerList[i].expanded = true;
} else {
controllerList[i].expanded = false;
}
}
},
child: Container(
color: Colors.blue,
child: Padding(
padding: EdgeInsets.all(10),
child: Row(
mainAxisAlignment: MainAxisAlignment.start,
children: [
Expanded(
flex: 1,
child: Icon(
Icons.calendar_today,
color: Colors.white,
)),
Expanded(flex: 1, child: Container()),
Expanded(
flex: 4,
child: Text(
"15/06/2020",
style: TextStyle(color: Colors.white),
),
),
],
)),
),
),
collapsed: Container(),
expanded: Container(
color: Colors.white,
child: Padding(
padding: EdgeInsets.all(10),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Text("Bill Date",
style: TextStyle(color: Colors.blue)),
Text("15/05/2020",
style: TextStyle(color: Colors.blue)),
],
),
Divider(
color: Colors.blue,
thickness: 2.0,
),
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Text(
"Adjustment",
style: TextStyle(color: Colors.blue),
),
Text(".00", style: TextStyle(color: Colors.blue)),
],
),
Divider(
color: Colors.blue,
thickness: 2.0,
),
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Text("Total due",
style: TextStyle(color: Colors.blue)),
Text("413.27",
style: TextStyle(color: Colors.blue)),
],
),
],
),
),
),
builder: (_, collapsed, expanded) {
return Expandable(
collapsed: collapsed,
expanded: expanded,
theme: const ExpandableThemeData(crossFadePoint: 0),
);
},
),
),
],
),
),
));
}
}
class Card2 extends StatelessWidget {
@override
Widget build(BuildContext context) {
return ExpandableNotifier(
child: Padding(
padding: const EdgeInsets.all(10),
child: Card(
color: Colors.blue,
clipBehavior: Clip.antiAlias,
child: Column(
children: <Widget>[
ScrollOnExpand(
scrollOnExpand: true,
scrollOnCollapse: false,
child: ExpandablePanel(
controller: controllerList[1],
theme: const ExpandableThemeData(
iconColor: Colors.white,
headerAlignment: ExpandablePanelHeaderAlignment.center,
tapBodyToCollapse: true,
),
header: InkWell(
onTap: () {
currentIndex = 1;
for (int i = 0; i < controllerList.length; i++) {
if (i == currentIndex) {
controllerList[i].expanded = true;
} else {
controllerList[i].expanded = false;
}
}
},
child: Container(
color: Colors.blue,
child: Padding(
padding: EdgeInsets.all(10),
child: Row(
mainAxisAlignment: MainAxisAlignment.start,
children: [
Expanded(
flex: 1,
child: Icon(
Icons.calendar_today,
color: Colors.white,
)),
Expanded(flex: 1, child: Container()),
Expanded(
flex: 4,
child: Text(
"15/05/2020",
style: TextStyle(color: Colors.white),
),
),
],
)),
),
),
collapsed: Container(),
expanded: Container(
color: Colors.white,
child: Padding(
padding: EdgeInsets.all(10),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Text("Bill Date",
style: TextStyle(color: Colors.blue)),
Text("15/06/2020",
style: TextStyle(color: Colors.blue)),
],
),
Divider(
color: Colors.blue,
thickness: 2.0,
),
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Text(
"Adjustment",
style: TextStyle(color: Colors.blue),
),
Text(".00", style: TextStyle(color: Colors.blue)),
],
),
Divider(
color: Colors.blue,
thickness: 2.0,
),
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Text("Total due",
style: TextStyle(color: Colors.blue)),
Text("413.27",
style: TextStyle(color: Colors.blue)),
],
),
],
),
),
),
builder: (_, collapsed, expanded) {
return Expandable(
collapsed: collapsed,
expanded: expanded,
theme: const ExpandableThemeData(crossFadePoint: 0),
);
},
),
),
],
),
),
));
}
}
class Card3 extends StatelessWidget {
@override
Widget build(BuildContext context) {
return ExpandableNotifier(
child: Padding(
padding: const EdgeInsets.all(10),
child: Card(
color: Colors.blue,
clipBehavior: Clip.antiAlias,
child: Column(
children: <Widget>[
ScrollOnExpand(
scrollOnExpand: true,
scrollOnCollapse: false,
child: ExpandablePanel(
controller: controllerList[2],
theme: const ExpandableThemeData(
iconColor: Colors.white,
headerAlignment: ExpandablePanelHeaderAlignment.center,
tapBodyToCollapse: true,
),
header: InkWell(
onTap: () {
currentIndex = 2;
for (int i = 0; i < controllerList.length; i++) {
if(i == currentIndex) {
controllerList[i].expanded = true;
} else {
controllerList[i].expanded = false;
}
}
},
child: Container(
color: Colors.blue,
child: Padding(
padding: EdgeInsets.all(10),
child: Row(
mainAxisAlignment: MainAxisAlignment.start,
children: [
Expanded(
flex: 1,
child: Icon(
Icons.calendar_today,
color: Colors.white,
)),
Expanded(flex: 1, child: Container()),
Expanded(
flex: 4,
child: Text(
"14/04/2020",
style: TextStyle(color: Colors.white),
),
),
],
)),
),
),
collapsed: Container(),
expanded: Container(
color: Colors.white,
child: Padding(
padding: EdgeInsets.all(10),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Text("Bill Date",
style: TextStyle(color: Colors.blue)),
Text("15/05/2020",
style: TextStyle(color: Colors.blue)),
],
),
Divider(
color: Colors.blue,
thickness: 2.0,
),
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Text(
"Adjustment",
style: TextStyle(color: Colors.blue),
),
Text(".00", style: TextStyle(color: Colors.blue)),
],
),
Divider(
color: Colors.blue,
thickness: 2.0,
),
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Text("Total due",
style: TextStyle(color: Colors.blue)),
Text("413.27",
style: TextStyle(color: Colors.blue)),
],
),
],
),
),
),
builder: (_, collapsed, expanded) {
return Expandable(
collapsed: collapsed,
expanded: expanded,
theme: const ExpandableThemeData(crossFadePoint: 0),
);
},
),
),
],
),
),
));
}
}