forked from lxm_flutter/FlutterUnit
56 lines
1.6 KiB
Dart
56 lines
1.6 KiB
Dart
import 'package:flutter/material.dart';
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/// create by 张风捷特烈 on 2020/4/30
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/// contact me by email 1981462002@qq.com
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/// 说明:
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// {
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// "widgetId": 49,
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// "name": 'RefreshIndicator基本使用',
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// "priority": 1,
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// "subtitle":
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// "【child】 : 孩子(可滑动) 【Widget】\n"
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// "【displacement】 : 指示器悬浮高度 【double】\n"
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// "【color】 : 指示器颜色 【Color】\n",
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// "【backgroundColor】 : 指示器背景色 【Color】\n"
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// "【onRefresh】 : 异步函数 【Future<void> Function()】"
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// }
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class CustomRefreshIndicator extends StatefulWidget {
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const CustomRefreshIndicator({Key? key}) : super(key: key);
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@override
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_CustomRefreshIndicatorState createState() => _CustomRefreshIndicatorState();
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}
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class _CustomRefreshIndicatorState extends State<CustomRefreshIndicator> {
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int _count = 0;
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@override
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Widget build(BuildContext context) {
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return SizedBox(
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height: 200,
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width: 200,
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child: RefreshIndicator(
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onRefresh: _increment,
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displacement: 20,
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color: Colors.orange,
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backgroundColor: Colors.white,
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child: SingleChildScrollView(
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child: Container(
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alignment: Alignment.center,
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width: 200,
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height: 300,
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color: Colors.blue,
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child: Text('$_count',style: const TextStyle(color: Colors.white,fontSize: 40)),
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),
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),
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),
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);
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}
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Future<void> _increment() async {
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await Future.delayed(const Duration(seconds: 2));
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setState(() {
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_count++;
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});
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}
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}
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