forked from lxm_flutter/FlutterUnit
67 lines
2.0 KiB
Dart
67 lines
2.0 KiB
Dart
import 'package:flutter/material.dart';
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/// create by 张风捷特烈 on 2020-03-20
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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": 100,
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// "name": 'AnimatedCrossFade动画曲线',
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// "priority": 2,
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// "subtitle":
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// "【firstCurve】 : 第一曲线 【Curve】\n"
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// "【secondCurve】 : 第二曲线 【Curve】\n"
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// "【sizeCurve】 : 尺寸变化曲线 【CrossFadeState】",
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// }
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class CurveAnimatedCrossFade extends StatefulWidget {
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const CurveAnimatedCrossFade({Key? key}) : super(key: key);
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@override
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_CurveAnimatedCrossFadeState createState() => _CurveAnimatedCrossFadeState();
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}
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class _CurveAnimatedCrossFadeState extends State<CurveAnimatedCrossFade> {
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var _crossFadeState = CrossFadeState.showFirst;
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bool get isFirst=> _crossFadeState == CrossFadeState.showFirst;
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@override
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Widget build(BuildContext context) {
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return Wrap(
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children: <Widget>[
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AnimatedCrossFade(
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firstCurve: Curves.easeInCirc,
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secondCurve: Curves.easeInToLinear,
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sizeCurve: Curves.bounceOut,
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firstChild: Container(
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alignment: Alignment.center,
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width: 200,
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height: 80,
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color: Colors.orange ,
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child: const FlutterLogo(textColor: Colors.blue,size: 50,),
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),
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secondChild: Container(
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width: 200,
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height: 150,
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alignment: Alignment.center,
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color: Colors.blue,
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child: const FlutterLogo(
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textColor: Colors.white,
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// colors: Colors.orange,
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size: 100,style: FlutterLogoStyle.stacked,),
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),
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duration: const Duration(milliseconds: 1000),
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crossFadeState: _crossFadeState,
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),
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_buildSwitch(),
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],
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);
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}
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Widget _buildSwitch() => Switch(value: isFirst, onChanged: (v){
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setState(() {
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_crossFadeState= v?CrossFadeState.showFirst:CrossFadeState.showSecond;
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});
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});
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}
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