dart code snippet for vscode

dart.json

{
    // Place your snippets for dart here. Each snippet is defined under a snippet name and has a prefix, body and 
    // description. The prefix is what is used to trigger the snippet and the body will be expanded and inserted. Possible variables are:
    // $1, $2 for tab stops, $0 for the final cursor position, and ${1:label}, ${2:another} for placeholders. Placeholders with the 
    // same ids are connected.
    // Example:
    // "Print to console": {
    // 	"prefix": "log",
    // 	"body": [
    // 		"console.log('$1');",
    // 		"$2"
    // 	],
    // 	"description": "Log output to console"
    // }
    "Stateless Widget": {
        "prefix": "stateless",
        "body": [
            "import 'package:flutter/material.dart';",
            "\n",
            "class ${1:MyClass} extends StatelessWidget {",
            "@override",
            "Widget build(BuildContext context) {",
            "return Container($0);}}"
        ]
    },
    "Stateful Widget": {
        "prefix": "stateful",
        "body": [
            "import 'package:flutter/material.dart';",
            "\n",
            "class ${1:MyClass} extends StatefulWidget {",
            "const ${1:MyClass}({Key key, $2}) : super(key: key);",
            "\n",
            "@override",
            "_${1:MyClass}State createState() => _${1:MyClass}State();",
            "}",
            "\n",
            "class _${1:MyClass}State extends State<${1:MyClass}> {",
            "\n",
            "@override",
            "void initState() {",
            "super.initState();",
            "}",
            "\n",
            "@override",
            "void dispose() {",
            "super.dispose();",
            "}",
            "\n",
            "@override",
            "Widget build(BuildContext context) {",
            "return Container($0);}}"
        ]
    },
    "Widget Test": {
        "prefix": "widgettest",
        "body": [
            "import 'package:flutter_test/flutter_test.dart';",
            "import 'package:flutter/material.dart';",
            "//import 'package:piota/${1:widgetfile}.dart';",
            "\n",
            "import 'ui_test_util.dart';",
            "\n",
            "void main() {",
            "group('${2:groupname}', () {",
            "final testableWidget = testWidget(${3:Container()},Size(375, 667));",
            "testWidgets('${3:Container()} test', (WidgetTester tester) async {",
            "final finder = find.byKey(Key('${5:keyname}'));",
            "await tester.pumpWidget(testableWidget);",
            "expect(finder, findsOneWidget);",
            "});});}"
        ]
    }
}