forked from lxm_flutter/FlutterUnit
63 lines
1.5 KiB
Dart
63 lines
1.5 KiB
Dart
import 'package:flutter/material.dart';
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/// create by 张风捷特烈 on 2020-03-29
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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": 38,
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// "name": '图片的适应模式',
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// "priority": 2,
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// "subtitle":
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// "【fit】 : 适应模式*7 【BoxFit】\n",
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// },
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class FitImage extends StatefulWidget {
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@override
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_FitImageState createState() => _FitImageState();
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}
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class _FitImageState extends State<FitImage> {
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bool _smallImage = false;
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@override
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Widget build(BuildContext context) {
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var imageLi = BoxFit.values
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.toList()
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.map((mode) => Column(children: <Widget>[
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Container(
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margin: EdgeInsets.all(5),
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width: 100,
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height: 80,
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color: Colors.grey.withAlpha(88),
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child: Image(
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image: AssetImage(!_smallImage
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? "assets/images/wy_300x200.webp"
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: "assets/images/wy_30x20.webp"),
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fit: mode)),
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Text(mode.toString().split(".")[1])
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]))
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.toList();
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return Wrap(
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children: [...imageLi, _buildSwitch()],
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);
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}
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Widget _buildSwitch() {
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return Container(
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alignment: Alignment.center,
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width: 200,
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height: 100,
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child: Wrap(
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crossAxisAlignment: WrapCrossAlignment.center,
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children: <Widget>[
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Text("使用小图"),
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Switch(
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value: _smallImage,
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onChanged: (b) => setState(() => _smallImage = b)),
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],
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),
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);
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}
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}
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