forked from lxm_flutter/FlutterUnit
59 lines
1.6 KiB
Dart
59 lines
1.6 KiB
Dart
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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": 111,
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// "name": 'AlignTransition基本使用',
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// "priority": 1,
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// "subtitle":
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// "【child】 : 孩子组件 【Widget】\n"
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// "【alignment】 : 对齐动画 【Animation<AlignmentGeometry>】",
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// }
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class CustomAlignTransition extends StatefulWidget {
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@override
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_CustomAlignTransitionState createState() => _CustomAlignTransitionState();
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}
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class _CustomAlignTransitionState extends State<CustomAlignTransition>
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with SingleTickerProviderStateMixin {
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AnimationController _ctrl;
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@override
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void initState() {
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_ctrl = AnimationController(vsync: this, duration: Duration(seconds: 1));
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_ctrl.forward();
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super.initState();
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}
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@override
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void dispose() {
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_ctrl.dispose();
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super.dispose();
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}
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@override
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Widget build(BuildContext context) {
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return GestureDetector(
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onTap: () {
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setState(() {
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_ctrl.reset();
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_ctrl.forward();
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});
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},
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child: Container(
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width: MediaQuery.of(context).size.width,
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color: Colors.grey.withAlpha(33),
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height: 100,
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child: AlignTransition(
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alignment: AlignmentTween(
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begin: Alignment.topLeft, end: Alignment.bottomRight)
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.animate(_ctrl),
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child: Container(
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child: Icon(Icons.android, color: Colors.green, size: 60)),
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),
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));
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}
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}
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