| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| import 'dart:async'; |
| |
| import 'package:flutter/material.dart'; |
| |
| class PeriodicBuilderWidget extends StatefulWidget { |
| final Duration interval; |
| final ValueGetter<Widget> builder; |
| |
| const PeriodicBuilderWidget({ |
| super.key, |
| required this.interval, |
| required this.builder, |
| }); |
| |
| @override |
| State<PeriodicBuilderWidget> createState() => _PeriodicBuilderWidgetState(); |
| } |
| |
| class _PeriodicBuilderWidgetState extends State<PeriodicBuilderWidget> { |
| late Timer _timer; |
| |
| @override |
| void initState() { |
| super.initState(); |
| _timer = Timer.periodic( |
| widget.interval, |
| (_) { |
| setState(() {}); |
| }, |
| ); |
| } |
| |
| @override |
| void dispose() { |
| super.dispose(); |
| _timer.cancel(); |
| } |
| |
| @override |
| Widget build(BuildContext context) { |
| return widget.builder(); |
| } |
| } |