我对自己的json数据使用了相同的包。在这里您可以找到用法示例。也许您可以对其进行调整以供使用。
import 'dart:convert';import 'package:flutter/material.dart';import 'package:tree_view/tree_view.dart';void main() { runApp(MyApp());}class MyApp extends StatefulWidget { @override _MyAppState createState() => _MyAppState();}class _MyAppState extends State<MyApp> { @override Widget build(BuildContext context) { return MaterialApp( title: 'title', theme: ThemeData( primarySwatch: Colors.blue, ), initialRoute: '/', routes: { '/': (context) => TestPage(), }, ); }}class TestPage extends StatefulWidget { @override _TestPageState createState() => _TestPageState();}class _TestPageState extends State<TestPage> { String responseBody = '{ "id": 0,"name": "A","children": [{ "id": 1, "name": "Aa","children": [{"id": 2,"name": "Aa1","children": null}]},{ "id": 3, "name": "Ab","children": [{"id": 4,"name": "Ab1","children": null},{"id": 5,"name": "Ab2","children": null}]}]}'; @override Widget build(BuildContext context) { Map mapBody = jsonDepre(responseBody); return SafeArea( child: Scaffold( body: printGroupTree( mapBody, ), ), ); } Widget printGroupTree( Map group, { double level = 0, }) { if (group['children'] != null) { List<Widget> subGroups = List<Widget>(); for (Map subGroup in group['children']) { subGroups.add( printGroupTree( subGroup, level: level + 1, ), ); } return Parent( parent: _card( group['name'], level * 20, ), childList: ChildList( children: subGroups, ), ); } else { return _card( group['name'], level * 20, ); } } Widget _card( String groupName, double leftPadding, ) { return Container( padding: EdgeInsets.only( left: leftPadding + 5, right: 20, ), decoration: BoxDecoration( borderRadius: BorderRadius.circular(50.0), ), height: 100, child: Row( children: <Widget>[ Container( width: 250, child: Row( children: <Widget>[ Container( height: 70, width: 70, decoration: BoxDecoration( shape: BoxShape.rectangle, image: DecorationImage(fit: BoxFit.fill,image: NetworkImage( 'https://upload.wikimedia.org/wikipedia/commons/thumb/a/a6/Rubik%27s_cube.svg/220px-Rubik%27s_cube.svg.png',), ), ), ), SizedBox( width: 10, ), Flexible( child: Text( 'SomeText', ), ), ], ), ), Expanded( child: SizedBox(), ), InkWell( //TODO:Empty method here onTap: () {}, child: Icon( Icons.group_add, size: 40, ), ) ], ), ); }}
