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✨ AnimatedBuilder、CupertinoPopupSurface、TweenAnimationBuilder、RenderObjectToWidgetAdapter

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toly
2020-12-17 18:05:07 +08:00
parent 849d138161
commit ebc4e04ca7
10 changed files with 248 additions and 7 deletions
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assets/flutter.db
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33
lib/views/widgets/Other/RenderObjectToWidgetAdapter/node1_base.dart Normal file
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@@ -0,0 +1,33 @@
import 'package:flutter/material.dart';
/// create by 张风捷特烈 on 2020/9/21
/// contact me by email 1981462002@qq.com
/// 说明: 289 RenderObjectToWidgetAdapter 根组件 RenderObject 和 Element 树的桥梁。
///
// {
// "widgetId": 289,
// "name": 'RenderObjectToWidgetAdapter 介绍',
// "priority": 1,
// "subtitle":
// "【container】 : 渲染对象 【RenderObjectWithChildMixin<T>】\n"
// "【child】 : 子组件 【Widget】\n"
// "【debugShortDescription】 : 调试简介 【String】",
// }
class RenderObjectToWidgetAdapterDemo extends StatelessWidget {
final String info =
'该组件并没有什么太大的使用价值，但却非常有纪念意义。它是 Flutter 框架中最顶层的 Widget，它的 child 是 runApp 传入的组件，在 attachRootWidget 方法中被实例化。'
'它持有根渲染对象 RenderView ，负责创建根元素 RenderObjectToWidgetElement，是一个无名英雄，一个深藏功与名的组件。';
@override
Widget build(BuildContext context) {
return Container(
color: Colors.blue.withOpacity(0.1),
padding: EdgeInsets.all(10),
margin: EdgeInsets.all(10),
child: Text(info),
);
}
}

68
lib/views/widgets/StatefulWidget/AnimatedBuilder/node1_base.dart Normal file
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@@ -0,0 +1,68 @@
import 'package:flutter/material.dart';
/// create by 张风捷特烈 on 2020/9/21
/// contact me by email 1981462002@qq.com
/// 说明: 228 AnimatedBuilder 动画构造器
/// 通过 builder 使动画对应的节点变为局部更新，并且可避免子组件刷新，减少构建的时间，提高动画性能。
///
// {
// "widgetId": 228,
// "name": 'AnimatedBuilder 使用案例',
// "priority": 1,
// "subtitle":
// "【animation】 : *可监听对象 【Listenable】\n"
// "【builder】 : *组件构造器 【TransitionBuilder】\n"
// "【child】 : 子组件 【Widget】",
// }
class AnimatedBuilderDemo extends StatefulWidget {
@override
_AnimatedBuilderDemoState createState() => _AnimatedBuilderDemoState();
}
class _AnimatedBuilderDemoState extends State<AnimatedBuilderDemo>
with SingleTickerProviderStateMixin {
AnimationController controller;
@override
void initState() {
super.initState();
controller = AnimationController(
vsync: this,
lowerBound: 0.3,
upperBound: 1.0,
duration: const Duration(milliseconds: 500))
..forward();
}
@override
Widget build(BuildContext context) {
return GestureDetector(
onTap: () {
controller.forward(from: 0);
},
child: AnimatedBuilder(
animation: controller,
builder: (ctx, child) {
return Transform.scale(
scale: controller.value,
child: Opacity(opacity: controller.value, child: child),
);
},
child: buildChild()),
);
}
Widget buildChild() => Container(
height: 100,
width: 100,
decoration: BoxDecoration(color: Colors.orange, shape: BoxShape.circle),
alignment: Alignment.center,
child: Text(
'Toly',
style: TextStyle(fontSize: 40, color: Colors.white),
),
);
}

61
lib/views/widgets/StatefulWidget/TweenAnimationBuilder/node1_base.dart Normal file
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@@ -0,0 +1,61 @@
import 'package:flutter/material.dart';
/// create by 张风捷特烈 on 2020/9/21
/// contact me by email 1981462002@qq.com
/// 说明: 226 TweenAnimationBuilder 渐变动画构造器
/// 通过渐变器 Tween 对相关属性进行渐变动画，通过 builder 进行局部构建，减少刷新范围。不需要自定义动画器，可指定动画时长、曲线、结束回调。
///
// {
// "widgetId": 226,
// "name": 'TweenAnimationBuilder 使用案例',
// "priority": 1,
// "subtitle":
// "【tween】 : *渐变器 【Tween<T>】\n"
// "【duration】 : *时长 【Duration】\n"
// "【builder】 : *构造器 【ValueWidgetBuilder<T>】\n"
// "【curve】 : 动画曲线 【Curve】\n"
// "【onEnd】 : 结束回调 【VoidCallback】\n"
// "【child】 : 子组件 【Widget】",
// }
class TweenAnimationBuilderDemo extends StatefulWidget {
@override
_TweenAnimationBuilderDemoState createState() =>
_TweenAnimationBuilderDemoState();
}
class _TweenAnimationBuilderDemoState extends State<TweenAnimationBuilderDemo> {
Color _value = Colors.red;
@override
Widget build(BuildContext context) {
return TweenAnimationBuilder(
tween: ColorTween(begin: Colors.blue, end: _value),
duration: Duration(milliseconds: 800),
builder: (BuildContext context, Color color, Widget child) {
return GestureDetector(
onTap: () {
setState(() {
_value = _value == Colors.red ? Colors.blue : Colors.red;
});
},
child: Container(
width: 40,
height: 40,
child: child,
decoration: BoxDecoration(
color: color,
borderRadius: BorderRadius.circular(5)
),
),
);
},
child: Icon(
Icons.android_outlined,
color: Colors.white,
),
);
}
}

6
lib/views/widgets/StatelessWidget/Container/node4_decoration.dart
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@@ -14,7 +14,7 @@ import 'package:flutter/material.dart';
class ContainerDecoration extends StatelessWidget {
static const rainbow = <int>[
final List<int> rainbow = [
0xffff0000,
0xffFF7F00,
0xffFFFF00,
@@ -23,10 +23,10 @@ class ContainerDecoration extends StatelessWidget {
0xff0000FF,
0xff8B00FF
];
final List<double> stops = [0.0, 1 / 6, 2 / 6, 3 / 6, 4 / 6, 5 / 6, 1.0];
@override
Widget build(BuildContext context) {
var stops = [0.0, 1 / 6, 2 / 6, 3 / 6, 4 / 6, 5 / 6, 1.0];
return Container(//容器
alignment: Alignment.center,
width: 200,

62
lib/views/widgets/StatelessWidget/CupertinoPopupSurface/node1_base.dart Normal file
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@@ -0,0 +1,62 @@
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
/// create by 张风捷特烈 on 2020/9/21
/// contact me by email 1981462002@qq.com
/// 说明: 217 CupertinoPopupSurface 模糊弹出层
/// ios 弹出框的圆角矩形模糊背景，源码中应用于 Cupertino 风格的对话框中。
///
// {
// "widgetId": 217,
// "name": 'CupertinoPopupSurface 使用',
// "priority": 1,
// "subtitle":
// "【isSurfacePainted】 : 是否绘白 【bool】\n"
// "【child】 : 子组件 【Widget】\n"
// "测试效果左侧 isSurfacePainted = false，右侧 isSurfacePainted = true",
// }
class CupertinoPopupSurfaceDemo extends StatelessWidget {
final List<int> rainbow = [
0xffff0000,
0xffFF7F00,
0xffFFFF00,
0xff00FF00,
0xff00FFFF,
0xff0000FF,
0xff8B00FF
];
final List<double> stops = [0.0, 1 / 6, 2 / 6, 3 / 6, 4 / 6, 5 / 6, 1.0];
@override
Widget build(BuildContext context) {
return Container(
decoration: BoxDecoration(
gradient: RadialGradient(
radius: 1.8,
stops: stops,
colors: rainbow.map((e) => Color(e)).toList())),
padding: EdgeInsets.all(10),
child: Wrap(
spacing: 10,
children: [
buildCupertinoPopupSurface(false),
buildCupertinoPopupSurface(true),
],
),
);
}
Widget buildCupertinoPopupSurface(bool isSurfacePainted) {
return CupertinoPopupSurface(
isSurfacePainted: isSurfacePainted,
child: Container(
width: 150,
height: 100,
color: Colors.white.withOpacity(0.3),
alignment: Alignment.center,
),
);
}
}

3
lib/views/widgets/exp/other_unit.dart
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@@ -8,4 +8,5 @@ library other_unit.dart;
export '../Other/ErrorWidget/node1_base.dart';
export '../Other/Table/node1_base.dart';
export '../Other/RawImage/node1_base.dart';
export '../Other/PerformanceOverlay/node1_base.dart';
export '../Other/PerformanceOverlay/node1_base.dart';
export '../Other/RenderObjectToWidgetAdapter/node1_base.dart';

2
lib/views/widgets/exp/stateful_unit.dart
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@@ -77,6 +77,8 @@ export '../StatefulWidget/CupertinoScrollbar/node1_base.dart';
export '../StatefulWidget/RawGestureDetector/node1_base.dart';
export '../StatefulWidget/Dismissible/node1_base.dart';
export '../StatefulWidget/AnimatedBuilder/node1_base.dart';
export '../StatefulWidget/TweenAnimationBuilder/node1_base.dart';
export '../StatefulWidget/RawKeyboardListener/node1_base.dart';
export '../StatefulWidget/Dismissible/node2_direction.dart';

1
lib/views/widgets/exp/stateless_unit.dart
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@@ -45,6 +45,7 @@ export '../StatelessWidget/CupertinoNavigationBarBackButton/node1_base.dart';
export '../StatelessWidget/CupertinoTheme/node1_base.dart';
export '../StatelessWidget/CupertinoTheme/node2_use.dart';
export '../StatelessWidget/CupertinoPopupSurface/node1_base.dart';
export '../StatelessWidget/Divider/node1_base.dart';
export '../StatelessWidget/Divider/node2_height.dart';

19
lib/views/widgets/widgets_map.dart
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@@ -7,9 +7,7 @@ import 'exp/proxy_unit.dart';
import 'exp/other_unit.dart';
import 'exp/sliver_unit.dart';
/// create by 张风捷特烈 on 2020-03-04
/// contact me by email 1981462002@qq.com
/// 说明:
/// AUTO CREATED BY [张风捷特烈] , DON'T MODIFY!
class WidgetsMap {
static List<Widget> map(String name) {
@@ -90,6 +88,13 @@ class WidgetsMap {
return [
ViewportDemo(),
];
case "CupertinoPopupSurface":
return [
CupertinoPopupSurfaceDemo(),
]; case "RenderObjectToWidgetAdapter":
return [
RenderObjectToWidgetAdapterDemo(),
];
case "SliverPrototypeExtentList":
return [
SliverPrototypeExtentListDemo(),
@@ -118,6 +123,14 @@ class WidgetsMap {
return [
SafeAreaDemo(),
];
case "AnimatedBuilder":
return [
AnimatedBuilderDemo(),
];
case "TweenAnimationBuilder":
return [
TweenAnimationBuilderDemo(),
];
case "WidgetInspector":
return [
WidgetInspectorDemo(),