60 lines
2.1 KiB
Dart
60 lines
2.1 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:peach/config/_.dart';
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import 'package:peach/utils/_.dart';
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import 'package:flutter_spinkit/flutter_spinkit.dart';
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/// 异步数据请求，封装成组件，数据类型通过泛型传入
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class FutureBuilderWidget<O> extends StatelessWidget {
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final Function future; // future 异步方法
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final Widget Function(O res) success; // 请求成功后展示的widget方法
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FutureBuilderWidget({
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@required this.future,
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@required this.success
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});
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@override
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Widget build(BuildContext context) {
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return FutureBuilder(
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future: future(),
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builder: (BuildContext context, AsyncSnapshot<O> snapshot) {
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switch (snapshot.connectionState) {
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case ConnectionState.waiting:
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return Center(
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child: SpinKitWave(color: ColorConfig.ThemeColor, itemCount: 3, size: 40),
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);
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break;
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case ConnectionState.done:
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if (snapshot.hasError) {
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return Container(
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margin: EdgeInsets.only(top: Screen.setHeight(100)),
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alignment: AlignmentDirectional.center,
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padding: EdgeInsets.all(10),
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child: Column(
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children: [
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Icon(Icons.error,size: 50,color: ColorConfig.ThemeColor,),
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SizedBox(height: 10,),
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Text("网络出现问题", style: TextStyle(fontSize: 16,color: ColorConfig.TitleColor),),
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SizedBox(height: 8,),
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Text(snapshot.error.toString(),style: TextStyle(fontSize: 14,color: ColorConfig.TextColor),),
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InkWell(
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onTap: () {
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FutureBuilderWidget(future: future, success: success,);
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},
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child: Icon(Icons.refresh,size: 30,color: ColorConfig.ThemeColor,),
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),
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],
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),
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);
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} else {
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return success(snapshot.data);
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}
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break;
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default:
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return null;
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}
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},
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);
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}
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}
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