Flutter 颤振所有动画在单击后向前开始
我试图通过学习新的小部件来提高自己,当我在使用动画和动画时,我遇到了一个问题,在为每个小部件添加了两个动画图标和InkWell小部件后,当我按下其中一个图标时,另一个也开始动画,我如何防止这种情况发生Flutter 颤振所有动画在单击后向前开始,flutter,flutter-animation,Flutter,Flutter Animation,我试图通过学习新的小部件来提高自己,当我在使用动画和动画时,我遇到了一个问题,在为每个小部件添加了两个动画图标和InkWell小部件后,当我按下其中一个图标时,另一个也开始动画,我如何防止这种情况发生 import 'package:flutter/material.dart'; void main() => runApp(MyApp()); class MyApp extends StatelessWidget { @override Widget build(BuildCo
import 'package:flutter/material.dart';
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
debugShowCheckedModeBanner: false,
home: MyFirstWidget(),
);
}
}
class MyFirstWidget extends StatefulWidget {
@override
State<StatefulWidget> createState() => MyFirstWidgetState();
}
class MyFirstWidgetState extends State<MyFirstWidget>
with SingleTickerProviderStateMixin {
bool reverse = false, reverse1 = false;
Animation animation;
AnimationController animationController, animationController1;
@override
void initState() {
super.initState();
animationController =
new AnimationController(vsync: this, duration: Duration(seconds: 1));
animation = Tween<double>(begin: 0, end: 2).animate(animationController);
}
@override
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: Colors.green,
body: Container(
decoration: BoxDecoration(
image: DecorationImage(image: AssetImage("assets/mathware.jpg"),fit: BoxFit.cover)),
child: Stack(
fit: StackFit.expand,
children: <Widget>[
Column(
mainAxisAlignment: MainAxisAlignment.end,
children: <Widget>[
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
InkWell(
onTap: () {
if (reverse == false) {
animationController.forward();
} else
animationController.reverse();
reverse = !reverse;
},
child: AnimatedIcon(
icon: AnimatedIcons.home_menu,
progress: animation,
size: 50,
color: Colors.black,
),
),
],
),
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
InkWell(
onTap: () {
if (reverse1 == false) {
animationController1.forward();
} else
animationController1.reverse();
reverse1 = !reverse1;
},
child: AnimatedIcon(
icon: AnimatedIcons.event_add,
progress: animation,
size: 50,
color: Colors.black,
),
),
],
)
],
)
],
),
),
);
}
}
导入“包装:颤振/材料.省道”;
void main()=>runApp(MyApp());
类MyApp扩展了无状态小部件{
@凌驾
小部件构建(构建上下文){
返回材料PP(
debugShowCheckedModeBanner:false,
主页:MyFirstWidget(),
);
}
}
类MyFirstWidget扩展了StatefulWidget{
@凌驾
State createState()=>MyFirstWidgetState();
}
类MyFirstWidgetState扩展了状态
使用SingleTickerProviderStateMixin{
bool reverse=false,reverse1=false;
动画;
AnimationController AnimationController,AnimationController 1;
@凌驾
void initState(){
super.initState();
动画控制器=
新的AnimationController(vsync:this,duration:duration(秒数:1));
animation=Tween(开始:0,结束:2)。设置动画(animationController);
}
@凌驾
小部件构建(构建上下文){
返回脚手架(
背景颜色:Colors.green,
主体:容器(
装饰:盒子装饰(
图片:DecorationImage(图片:AssetImage(“assets/mathware.jpg”),fit:BoxFit.cover),
子:堆栈(
fit:StackFit.expand,
儿童:[
纵队(
mainAxisAlignment:mainAxisAlignment.end,
儿童:[
划船(
mainAxisAlignment:mainAxisAlignment.center,
儿童:[
墨水池(
onTap:(){
如果(反向==假){
animationController.forward();
}否则
animationController.reverse();
反向=!反向;
},
孩子:动画片(
图标:AnimatedIcons.home_菜单,
进展:动画,
尺码:50,
颜色:颜色,黑色,
),
),
],
),
划船(
mainAxisAlignment:mainAxisAlignment.center,
儿童:[
墨水池(
onTap:(){
if(reverse1==false){
animationController1.forward();
}否则
animationController1.reverse();
反向1=!反向1;
},
孩子:动画片(
图标:animateDictions.event\u add,
进展:动画,
尺码:50,
颜色:颜色,黑色,
),
),
],
)
],
)
],
),
),
);
}
}
要实现这种行为,你应该这样做
SingleTickerProviderStateMixin
更改为TickerProviderStateMixin
AnimationController
void initState()
处使用正确的动画设置每个AnimationController
动画
Aniumation
应用于动画小部件
class MyFirstWidget extends StatefulWidget {
@override
State<StatefulWidget> createState() => MyFirstWidgetState();
}
class MyFirstWidgetState extends State<MyFirstWidget> with TickerProviderStateMixin {
bool reverse = false, reverse1 = false;
Animation animation;
Animation animation1;
AnimationController animationController, animationController1;
@override
void initState() {
super.initState();
animationController = new AnimationController(vsync: this, duration: Duration(seconds: 1));
animationController1 = new AnimationController(vsync: this, duration: Duration(seconds: 1));
animation = Tween<double>(begin: 0, end: 2).animate(animationController);
animation1 = Tween<double>(begin: 0, end: 2).animate(animationController1);
}
@override
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: Colors.green,
body: Container(
decoration: BoxDecoration(),
child: Stack(
fit: StackFit.expand,
children: <Widget>[
Column(
mainAxisAlignment: MainAxisAlignment.end,
children: <Widget>[
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
InkWell(
onTap: () {
if (reverse == false) {
animationController.forward();
} else
animationController.reverse();
reverse = !reverse;
},
child: AnimatedIcon(
icon: AnimatedIcons.home_menu,
progress: animation,
size: 50,
color: Colors.black,
),
),
],
),
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
InkWell(
onTap: () {
if (reverse1 == false) {
animationController1.forward();
} else
animationController1.reverse();
reverse1 = !reverse1;
},
child: AnimatedIcon(
icon: AnimatedIcons.event_add,
progress: animation1,
size: 50,
color: Colors.black,
),
),
],
)
],
)
],
),
),
);
}
}
类MyFirstWidget扩展了StatefulWidget{
@凌驾
State createState()=>MyFirstWidgetState();
}
类MyFirstWidgetState使用TickerProviderStateMixin扩展状态{
bool reverse=false,reverse1=false;
动画;
动画1;
AnimationController AnimationController,AnimationController 1;
@凌驾
void initState(){
super.initState();
animationController=新的animationController(vsync:this,duration:duration(秒:1));
animationController1=新的AnimationController(vsync:this,duration:duration(seconds:1));
animation=Tween(开始:0,结束:2)。设置动画(animationController);
animation1=Tween(开始:0,结束:2)。设置动画(animationController1);
}
@凌驾
小部件构建(构建上下文){
返回脚手架(
背景颜色:Colors.green,
主体:容器(
装饰:BoxDecoration(),
子:堆栈(
fit:StackFit.expand,
儿童:[
纵队(
mainAxisAlignment:mainAxisAlignment.end,
儿童:[
划船(
mainAxisAlignment:mainAxisAlignment.center,
儿童:[
墨水池(
onTap:(){
如果(反向==假){
animationController.forward();
}否则
animationController.reverse();
反向=!反向;
},
孩子:动画片(
图标:AnimatedIcons.home_菜单,
进展:动画,
尺码:50,
颜色:颜色,黑色,
),
),
],
),
划船(
mainAxisAlignment:mainAxisAlignment.center,
儿童:[
墨水池(
onTap:(){
if(reverse1==false){
import 'package:flutter/material.dart';
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
debugShowCheckedModeBanner: false,
home: MyFirstWidget(),
);
}
}
class MyFirstWidget extends StatefulWidget {
@override
State<StatefulWidget> createState() => MyFirstWidgetState();
}
class MyFirstWidgetState extends State<MyFirstWidget>
with TickerProviderStateMixin {
bool reverse = false, reverse1 = false;
Animation animation1,animation2;
AnimationController animationController1, animationController2;
@override
void initState() {
super.initState();
animationController1 = new AnimationController(vsync: this, duration: Duration(seconds: 1));
animationController2 = new AnimationController(vsync: this, duration: Duration(seconds: 1));
animation1 = Tween<double>(begin: 0, end: 2).animate(animationController1);
animation2 = Tween<double>(begin: 0, end: 2).animate(animationController2);
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(),
backgroundColor: Colors.green,
body: Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
InkWell(
onTap: () {
if (reverse == false) {
animationController1.forward();
} else
animationController1.reverse();
reverse = !reverse;
},
child: AnimatedIcon(
icon: AnimatedIcons.home_menu,
progress: animation1,
size: 50,
color: Colors.black,
),
),
InkWell(
onTap: () {
if (reverse1 == false) {
animationController2.forward();
} else
animationController2.reverse();
reverse1 = !reverse1;
},
child: AnimatedIcon(
icon: AnimatedIcons.event_add,
progress: animation2,
size: 50,
color: Colors.black,
),
),
],
),
);
}
}