Flutter 从第三个小部件（不是父小部件）调用两个不同小部件中的动画
我有两个页面（Flutter 从第三个小部件（不是父小部件）调用两个不同小部件中的动画,flutter,dart,flutter-web,flutter-animation,Flutter,Dart,Flutter Web,Flutter Animation,我有两个页面（Page1和Page2）在它们之间导航我有一个自定义的主菜单小部件，这两个页面都是相同的。主菜单分别包含在BodyPage1和BodyPage2中。我还有一个自定义的标题小部件。两个页面都有动画，页眉也有动画 我想做的是按下InkWell小部件中的一个，然后动画在当前页面上反转，然后调用新页面。我知道如何调用新页面，我对如何使用GlobalKey有大致的了解，但我开始认为这不能用GlobalKey完成。下面我将展示我拥有的各个小部件：dartpad链接以防万一- 类头扩展State
Page1Page2主菜单主菜单BodyPage1BodyPage2标题InkWellGlobalKeyGlobalKey类头扩展StatefulWidget{
@凌驾
_HeaderState createState（）=>U HeaderState（）；
}
类_HeaderState使用SingleTickerProviderStateMixin扩展状态{
动画控制器转换动画；
@凌驾
void initState（）{
super.initState（）；
transitionAnimation=动画控制器(
持续时间：常数持续时间（秒数：3），
vsync:这个,，
);
transitionAnimation.forward（）；
}
@凌驾
小部件构建（构建上下文）{
返回容器(
颜色：颜色（0x88DDDD），
高度：MediaQuery.of（context）.size.height，
宽度：MediaQuery.of（context）.size.width，
孩子：排(
crossAxisAlignment:crossAxisAlignment.center，
儿童：[
大小盒子(
宽度：8，
),
动画生成器(
动画：过渡动画，
生成器：（上下文，子对象）{
返回幻灯片转换(
位置：吐温(
开始：常量偏移（-2，0），结束：常量偏移（0，0））
.动画（曲线动画）(
曲线：常数间隔（0，0.3，
曲线：曲线。缓速返回），
父项：转换（动画），
孩子：孩子，
);
},
子：容器(
身高：100，
宽度：MediaQuery.of（context）.size.width*0.135，
颜色：颜色。粉红色，
),
),
扩大(
子级：容器（），
),
容器(
宽度：100，
身高：50，
颜色：颜色，紫色，
),
大小盒子(
宽度：8，
),
容器(
身高：50，
宽度：50，
颜色：颜色。琥珀色，
),
大小盒子(
宽度：8，
)
],
));
}
}
class Page1扩展了StatefulWidget{
@凌驾
_Page1State createState（）；
}
类_Page1State扩展状态{
@凌驾
小部件构建（构建上下文）{
返回脚手架(
extendedBodyBehindAppBar:true，
appBar:首选大小(
preferredSize:Size（MediaQuery.of（context）.Size.width，120），
子项：头（），
),
正文：BodyPage1（），
);
}
}
class PrimaryMenu扩展StatefulWidget{
@凌驾
_PrimaryMenuState createState（）=>\u PrimaryMenuState（）；
}
类_primarymenstate扩展了状态{
@凌驾
小部件构建（构建上下文）{
返回容器(
高度：MediaQuery.of（context）.size.height，
宽度：MediaQuery.of（context）.size.width*0.15，
颜色：颜色，蓝色，
子：列(
mainAxisAlignment:mainAxisAlignment.center，
儿童：[
容器(
身高：40，
宽度：MediaQuery.of（context）.size.width*0.135，
颜色：颜色。灰色，
孩子：InkWell(
onTap:（）{
打印（'1'）；
导航器。推(
上下文
材料路线(
生成器：（上下文）=>Page1（），
));
},
)),
尺寸箱（高度：16），
容器(
身高：40，
宽度：MediaQuery.of（context）.size.width*0.135，
颜色：颜色，黑色，
孩子：InkWell(
onTap:（）{
印刷品（‘2’）；
导航器。推(
上下文
材料路线(
生成器：（上下文）=>Page2（），
));
},
)),
],
));
}
}
class BodyPage1扩展了StatefulWidget{
@凌驾
_BodyPage1State createState（）=>\u BodyPage1State（）；
}
类_BodyPage1State扩展状态
使用SingleTickerProviderStateMixin{
动画控制器转换动画；
@凌驾
void initState（）{
super.initState（）；
transitionAnimation=动画控制器(
持续时间：常数持续时间（秒数：3），
vsync:这个,，
);
transitionAnimation.forward（）；
}
@凌驾
小部件构建（构建上下文）{
返回行(
儿童：[
动画生成器(
动画：过渡动画，
生成器：（上下文，子对象）{
返回幻灯片转换(
位置：吐温(
开始：常量偏移（-2，0），结束：常量偏移（0，0））
.动画（曲线动画）(
曲线：
常数间隔（0,0.3，曲线：曲线。缓变返回），
父项：转换（动画），
孩子：孩子，
);
},
子项：PrimaryMenu（）），
动画生成器(
动画：过渡动画，
class Header extends StatefulWidget {
@override
_HeaderState createState() => _HeaderState();
}
class _HeaderState extends State<Header> with SingleTickerProviderStateMixin {
AnimationController transitionAnimation;
@override
void initState() {
super.initState();
transitionAnimation = AnimationController(
duration: const Duration(seconds: 3),
vsync: this,
);
transitionAnimation.forward();
}
@override
Widget build(BuildContext context) {
return Container(
color: Color(0x88dddddd),
height: MediaQuery.of(context).size.height,
width: MediaQuery.of(context).size.width,
child: Row(
crossAxisAlignment: CrossAxisAlignment.center,
children: [
SizedBox(
width: 8,
),
AnimatedBuilder(
animation: transitionAnimation,
builder: (context, child) {
return SlideTransition(
position: Tween<Offset>(
begin: const Offset(-2, 0), end: const Offset(0, 0))
.animate(CurvedAnimation(
curve: const Interval(0, 0.3,
curve: Curves.easeInOutBack),
parent: transitionAnimation)),
child: child,
);
},
child: Container(
height: 100,
width: MediaQuery.of(context).size.width * 0.135,
color: Colors.pink,
),
),
Expanded(
child: Container(),
),
Container(
width: 100,
height: 50,
color: Colors.purple,
),
SizedBox(
width: 8,
),
Container(
height: 50,
width: 50,
color: Colors.amber,
),
SizedBox(
width: 8,
)
],
));
}
}
class Page1 extends StatefulWidget {
@override
_Page1State createState() => _Page1State();
}
class _Page1State extends State<Page1> {
@override
Widget build(BuildContext context) {
return Scaffold(
extendBodyBehindAppBar: true,
appBar: PreferredSize(
preferredSize: Size(MediaQuery.of(context).size.width, 120),
child: Header(),
),
body: BodyPage1(),
);
}
}
class PrimaryMenu extends StatefulWidget {
@override
_PrimaryMenuState createState() => _PrimaryMenuState();
}
class _PrimaryMenuState extends State<PrimaryMenu> {
@override
Widget build(BuildContext context) {
return Container(
height: MediaQuery.of(context).size.height,
width: MediaQuery.of(context).size.width * 0.15,
color: Colors.blue,
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Container(
height: 40,
width: MediaQuery.of(context).size.width * 0.135,
color: Colors.grey,
child: InkWell(
onTap: () {
print('1');
Navigator.push(
context,
MaterialPageRoute(
builder: (context) => Page1(),
));
},
)),
SizedBox(height: 16),
Container(
height: 40,
width: MediaQuery.of(context).size.width * 0.135,
color: Colors.black,
child: InkWell(
onTap: () {
print('2');
Navigator.push(
context,
MaterialPageRoute(
builder: (context) => Page2(),
));
},
)),
],
));
}
}
class BodyPage1 extends StatefulWidget {
@override
_BodyPage1State createState() => _BodyPage1State();
}
class _BodyPage1State extends State<BodyPage1>
with SingleTickerProviderStateMixin {
AnimationController transitionAnimation;
@override
void initState() {
super.initState();
transitionAnimation = AnimationController(
duration: const Duration(seconds: 3),
vsync: this,
);
transitionAnimation.forward();
}
@override
Widget build(BuildContext context) {
return Row(
children: [
AnimatedBuilder(
animation: transitionAnimation,
builder: (context, child) {
return SlideTransition(
position: Tween<Offset>(
begin: const Offset(-2, 0), end: const Offset(0, 0))
.animate(CurvedAnimation(
curve:
const Interval(0, 0.3, curve: Curves.easeInOutBack),
parent: transitionAnimation)),
child: child,
);
},
child: PrimaryMenu()),
AnimatedBuilder(
animation: transitionAnimation,
builder: (context, child) {
return SlideTransition(
position: Tween<Offset>(
begin: const Offset(-2, 0), end: const Offset(0, 0))
.animate(CurvedAnimation(
curve: const Interval(0.3, 1, curve: Curves.easeIn),
parent: transitionAnimation)),
child: child);
},
child: Padding(
padding: EdgeInsets.only(top: 140, left: 20, right: 20, bottom: 20),
child: Container(
height: MediaQuery.of(context).size.height - 140,
width: (MediaQuery.of(context).size.width * .85) - 40,
color: Colors.grey,
),
),
)
],
);
}
}
class Page2 extends StatefulWidget {
@override
_Page2State createState() => _Page2State();
}
class _Page2State extends State<Page2> {
@override
Widget build(BuildContext context) {
return Scaffold(
extendBodyBehindAppBar: true,
appBar: PreferredSize(
preferredSize: Size(MediaQuery.of(context).size.width, 120),
child: Header(),
),
body: BodyPage2(),
);
}
}
class BodyPage2 extends StatefulWidget {
@override
_BodyPage2State createState() => _BodyPage2State();
}
class _BodyPage2State extends State<BodyPage2>
with SingleTickerProviderStateMixin {
AnimationController transitionAnimation;
@override
void initState() {
super.initState();
transitionAnimation = AnimationController(
duration: const Duration(seconds: 3),
vsync: this,
);
transitionAnimation.forward();
}
@override
Widget build(BuildContext context) {
return Row(
children: [
AnimatedBuilder(
animation: transitionAnimation,
builder: (context, child) {
return SlideTransition(
position: Tween<Offset>(
begin: const Offset(-2, 0), end: const Offset(0, 0))
.animate(CurvedAnimation(
curve:
const Interval(0, 0.3, curve: Curves.easeInOutBack),
parent: transitionAnimation)),
child: child,
);
},
child: PrimaryMenu()),
AnimatedBuilder(
animation: transitionAnimation,
builder: (context, child) {
return SlideTransition(
position: Tween<Offset>(
begin: const Offset(-2, 0), end: const Offset(0, 0))
.animate(CurvedAnimation(
curve: const Interval(0.3, 1, curve: Curves.easeIn),
parent: transitionAnimation)),
child: child);
},
child: Padding(
padding: EdgeInsets.only(top: 140, left: 20, right: 20, bottom: 20),
child: Container(
height: MediaQuery.of(context).size.height - 140,
width: (MediaQuery.of(context).size.width * .85) - 40,
color: Colors.black,
),
),
)
],
);
}
}
import 'package:flutter/material.dart';
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
theme: ThemeData(visualDensity: VisualDensity.adaptivePlatformDensity),
debugShowCheckedModeBanner: false,
home: Page1(),
);
}
}
class Header extends StatefulWidget {
@override
_HeaderState createState() => _HeaderState();
}
class _HeaderState extends State<Header> with SingleTickerProviderStateMixin {
AnimationController transitionAnimation;
@override
void initState() {
super.initState();
transitionAnimation = AnimationController(
duration: const Duration(seconds: 3),
vsync: this,
);
transitionAnimation.forward();
}
@override
Widget build(BuildContext context) {
return Container(
color: const Color(0x88dddddd),
height: MediaQuery.of(context).size.height,
width: MediaQuery.of(context).size.width,
child: Row(
crossAxisAlignment: CrossAxisAlignment.center,
children: [
const SizedBox(
width: 8,
),
AnimatedBuilder(
animation: transitionAnimation,
builder: (context, child) {
return SlideTransition(
position: Tween<Offset>(
begin: const Offset(-2, 0), end: const Offset(0, 0))
.animate(CurvedAnimation(
curve: const Interval(0, 0.3,
curve: Curves.easeInOutBack),
parent: transitionAnimation)),
child: child,
);
},
child: Container(
height: 100,
width: MediaQuery.of(context).size.width * 0.135,
color: Colors.pink,
),
),
Expanded(
child: Container(),
),
Container(
width: 100,
height: 50,
color: Colors.purple,
),
const SizedBox(
width: 8,
),
Container(
height: 50,
width: 50,
color: Colors.amber,
),
const SizedBox(
width: 8,
)
],
));
}
}
class Page1 extends StatefulWidget {
@override
_Page1State createState() => _Page1State();
}
class _Page1State extends State<Page1> {
@override
Widget build(BuildContext context) {
return Scaffold(
extendBodyBehindAppBar: true,
appBar: PreferredSize(
preferredSize: Size(MediaQuery.of(context).size.width, 120),
child: Header(),
),
body: BodyPage1(),
);
}
}
class PrimaryMenu extends StatefulWidget {
final AnimationController controller;
const PrimaryMenu({Key key, this.controller}) : super(key: key);
@override
_PrimaryMenuState createState() => _PrimaryMenuState();
}
class _PrimaryMenuState extends State<PrimaryMenu> {
@override
Widget build(BuildContext context) {
return Container(
height: MediaQuery.of(context).size.height,
width: MediaQuery.of(context).size.width * 0.15,
color: Colors.blue,
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Container(
height: 40,
width: MediaQuery.of(context).size.width * 0.135,
color: Colors.grey,
child: InkWell(
onTap: () async {
print('1');
await widget.controller
.reverse()
.then((value) => Navigator.push(
context,
MaterialPageRoute(
builder: (context) => Page1(),
)));
},
)),
const SizedBox(height: 16),
Container(
height: 40,
width: MediaQuery.of(context).size.width * 0.135,
color: Colors.black,
child: InkWell(
onTap: () async {
print('2');
await widget.controller
.reverse()
.then((value) => Navigator.push(
context,
MaterialPageRoute(
builder: (context) => Page2(),
)));
},
)),
],
));
}
}
class BodyPage1 extends StatefulWidget {
@override
_BodyPage1State createState() => _BodyPage1State();
}
class _BodyPage1State extends State<BodyPage1>
with SingleTickerProviderStateMixin {
AnimationController transitionAnimation;
@override
void initState() {
super.initState();
transitionAnimation = AnimationController(
duration: const Duration(seconds: 3),
vsync: this,
);
transitionAnimation.forward();
}
@override
Widget build(BuildContext context) {
return Row(
children: [
AnimatedBuilder(
animation: transitionAnimation,
builder: (context, child) {
return SlideTransition(
position: Tween<Offset>(
begin: const Offset(-2, 0), end: const Offset(0, 0))
.animate(CurvedAnimation(
curve:
const Interval(0, 0.3, curve: Curves.easeInOutBack),
parent: transitionAnimation)),
child: child,
);
},
child: PrimaryMenu(
controller: transitionAnimation,
)),
AnimatedBuilder(
animation: transitionAnimation,
builder: (context, child) {
return SlideTransition(
position: Tween<Offset>(
begin: const Offset(-2, 0), end: const Offset(0, 0))
.animate(CurvedAnimation(
curve: const Interval(0.3, 1, curve: Curves.easeIn),
parent: transitionAnimation)),
child: child);
},
child: Padding(
padding: const EdgeInsets.only(
top: 140, left: 20, right: 20, bottom: 20),
child: Container(
height: MediaQuery.of(context).size.height - 140,
width: (MediaQuery.of(context).size.width * .85) - 40,
color: Colors.grey,
),
),
)
],
);
}
}
class Page2 extends StatefulWidget {
@override
_Page2State createState() => _Page2State();
}
class _Page2State extends State<Page2> {
@override
Widget build(BuildContext context) {
return Scaffold(
extendBodyBehindAppBar: true,
appBar: PreferredSize(
preferredSize: Size(MediaQuery.of(context).size.width, 120),
child: Header(),
),
body: BodyPage2(),
);
}
}
class BodyPage2 extends StatefulWidget {
@override
_BodyPage2State createState() => _BodyPage2State();
}
class _BodyPage2State extends State<BodyPage2>
with SingleTickerProviderStateMixin {
AnimationController transitionAnimation;
@override
void initState() {
super.initState();
transitionAnimation = AnimationController(
duration: const Duration(seconds: 3),
vsync: this,
);
transitionAnimation.forward();
}
@override
Widget build(BuildContext context) {
return Row(
children: [
AnimatedBuilder(
animation: transitionAnimation,
builder: (context, child) {
return SlideTransition(
position: Tween<Offset>(
begin: const Offset(-2, 0), end: const Offset(0, 0))
.animate(CurvedAnimation(
curve:
const Interval(0, 0.3, curve: Curves.easeInOutBack),
parent: transitionAnimation)),
child: child,
);
},
child: PrimaryMenu(
controller: transitionAnimation,
)),
AnimatedBuilder(
animation: transitionAnimation,
builder: (context, child) {
return SlideTransition(
position: Tween<Offset>(
begin: const Offset(-2, 0), end: const Offset(0, 0))
.animate(CurvedAnimation(
curve: const Interval(0.3, 1, curve: Curves.easeIn),
parent: transitionAnimation)),
child: child);
},
child: Padding(
padding: const EdgeInsets.only(
top: 140, left: 20, right: 20, bottom: 20),
child: Container(
height: MediaQuery.of(context).size.height - 140,
width: (MediaQuery.of(context).size.width * .85) - 40,
color: Colors.black,
),
),
)
],
);
}
}