forked from lxm_flutter/FlutterUnit
初步优化项目结构
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import 'package:flutter/cupertino.dart';
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import 'package:flutter/material.dart';
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/// create by 张风捷特烈 on 2020/7/22
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/// contact me by email 1981462002@qq.com
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/// 说明: 351 InteractiveViewer 交互视图 主要对移动、缩放等手势交互进行封装,简化使用,可指定移动边界、缩放比例、手势监听等。
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// {
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// "widgetId": 351,
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// "name": "InteractiveViewer基本使用",
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// "priority": 1,
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// "subtitle": "【alignPanAxis】 : 沿轴拖动 【bool】\n"
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// "【boundaryMargin】 : 边界边距 【EdgeInsets】\n"
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// "【panEnabled】 : 是否可平移 【bool】\n"
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// "【scaleEnabled】 : 是否可缩放 【bool】\n"
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// "【maxScale】 : 最大放大倍数 【double】\n"
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// "【minScale】 : 最小缩小倍数 【double】\n"
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// "【onInteractionEnd】 : 交互结束回调 【GestureScaleEndCallback】\n"
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// "【onInteractionStart】 : 交互开始回调 【GestureScaleStartCallback】\n"
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// "【onInteractionUpdate】 : 交互更新回调 【GestureScaleUpdateCallback】\n"
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// "【child】 : 游标颜色 【Widget】",
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// }
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class InteractiveViewerDemo extends StatelessWidget {
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@override
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Widget build(BuildContext context) {
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return Container(
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height: 150,
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color: Colors.grey.withAlpha(33),
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child: InteractiveViewer(
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boundaryMargin: EdgeInsets.all(40.0),
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maxScale: 2.5,
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minScale: 0.3,
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panEnabled: true,
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scaleEnabled: true,
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child: Container(
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child: Image.asset('assets/images/caver.webp'),
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),
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onInteractionStart: _onInteractionStart,
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onInteractionUpdate: _onInteractionUpdate,
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onInteractionEnd: _onInteractionEnd,
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),
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);
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}
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void _onInteractionStart(ScaleStartDetails details) {
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print('onInteractionStart----' + details.toString());
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}
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void _onInteractionUpdate(ScaleUpdateDetails details) {
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print('onInteractionUpdate----' + details.toString());
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}
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void _onInteractionEnd(ScaleEndDetails details) {
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print('onInteractionEnd----' + details.toString());
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}
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}
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