Flutter 颤振-ListTile中的浮动ActionButton
我需要在所有ListTiles的尾随中放置一个动画floatingAction按钮(如下图所示) 对于动画FloatingActionButton,我按照本教程获得了所需的FloatingActionButton的结构 问题是:FloatingAction按钮溢出。如何解决此问题?使用FloatingActionButton或其他小部件复制相同的弹出效果 我已经尝试过定位、堆栈、SingleChildScrollView等小部件 如果我返回SingleChildScrollView,我会得到以下结果: 动画按钮代码为:Flutter 颤振-ListTile中的浮动ActionButton,flutter,flutter-layout,Flutter,Flutter Layout,我需要在所有ListTiles的尾随中放置一个动画floatingAction按钮(如下图所示) 对于动画FloatingActionButton,我按照本教程获得了所需的FloatingActionButton的结构 问题是:FloatingAction按钮溢出。如何解决此问题?使用FloatingActionButton或其他小部件复制相同的弹出效果 我已经尝试过定位、堆栈、SingleChildScrollView等小部件 如果我返回SingleChildScrollView,我会得
import 'package:flutter/material.dart';
class AnimatedFAB extends StatefulWidget {
@override
_AnimatedFABState createState() => _AnimatedFABState();
}
class _AnimatedFABState extends State<AnimatedFAB> with SingleTickerProviderStateMixin {
bool isOpened = false;
AnimationController _animationController;
Animation<Color> _buttonColor;
Animation<double> _animationIcon;
Animation<double> _translateButton;
Curve _curve = Curves.easeOut;
double _fabHeight = 56.0;
@override
void initState() {
_animationController =
AnimationController(vsync: this, duration: Duration(milliseconds: 500))
..addListener(() {
setState(() {});
});
_animationIcon = Tween<double>(begin: 0.0, end: 1.0).animate(_animationController);
_buttonColor = ColorTween(begin: Colors.lightBlue, end: Colors.amber).animate(CurvedAnimation(parent: _animationController,
curve: Interval(0.00, 1.00, curve: Curves.linear)));
_translateButton = Tween<double> (begin: _fabHeight, end: -14.0)
.animate(CurvedAnimation(
parent: _animationController,
curve: Interval(0.0, 0.75, curve: _curve)
)
);
super.initState();
}
@override
void dispose() {
_animationController.dispose();
super.dispose();
}
//Widgets
Widget buttonAdd() {
return Container(
child: FloatingActionButton(
onPressed: () {},
tooltip: "Add",
child: Icon(Icons.add),
),);
}
Widget buttonEdit() {
return Container(
child: FloatingActionButton(
onPressed: () {},
tooltip: "Edit",
child: Icon(Icons.edit),
),);
}
Widget buttonDelete() {
return Container(
child: FloatingActionButton(
onPressed: () {},
tooltip: "Delete",
child: Icon(Icons.delete),
),);
}
Widget buttonToggle() {
return Container(
child: FloatingActionButton(
backgroundColor: _buttonColor.value,
onPressed: animate,
tooltip: "Toggle",
child: AnimatedIcon(icon: AnimatedIcons.menu_close, progress: _animationIcon,),
),);
}
animate() {
if (!isOpened)
_animationController.forward();
else
_animationController.reverse();
isOpened = !isOpened;
}
@override
Widget build(BuildContext context) {
return Positioned(
child: Column(
mainAxisAlignment: MainAxisAlignment.end,
children: [
Transform(
transform: Matrix4.translationValues(0.0, _translateButton.value*3.0, 0.0),
child: buttonAdd(),),
Transform(
transform: Matrix4.translationValues(0.0, _translateButton.value*2.0, 0.0),
child: buttonEdit(),),
Transform(
transform: Matrix4.translationValues(0.0, _translateButton.value, 0.0),
child: buttonDelete(),),
buttonToggle(),
],
),
);
}
}
导入“包装:颤振/材料.省道”;
类AnimatedFAB扩展StatefulWidget{
@凌驾
_AnimatedFABState createState()=>\u AnimatedFABState();
}
类_AnimatedFABState使用SingleTickerProviderStateMixin扩展状态{
bool-isOpened=false;
AnimationController _AnimationController;
动画按钮颜色;
动画animationIcon;
动画翻译按钮;
曲线_Curve=Curves.easeOut;
双倍高度=56.0;
@凌驾
void initState(){
_animationController=
AnimationController(vsync:this,duration:duration(毫秒:500))
…addListener((){
setState((){});
});
_animationIcon=Tween(开始:0.0,结束:1.0)。设置动画(\u animationController);
_buttonColor=ColorTween(开始:Colors.lightBlue,结束:Colors.amber)。动画(曲线动画)(父项:_animationController,
曲线:区间(0.00,1.00,曲线:曲线.线性));
_translateButton=Tween(开始:高度,结束:-14.0)
.动画(曲线动画)(
父项:_animationController,
曲线:间隔(0.0,0.75,曲线:_曲线)
)
);
super.initState();
}
@凌驾
无效处置(){
_animationController.dispose();
super.dispose();
}
//小部件
Widget buttonad(){
返回容器(
子:浮动操作按钮(
按下:(){},
工具提示:“添加”,
子:图标(Icons.add),
),);
}
小部件buttonEdit(){
返回容器(
子:浮动操作按钮(
按下:(){},
工具提示:“编辑”,
子:图标(Icons.edit),
),);
}
小部件按钮删除(){
返回容器(
子:浮动操作按钮(
按下:(){},
工具提示:“删除”,
子:图标(Icons.delete),
),);
}
小部件按钮切换(){
返回容器(
子:浮动操作按钮(
背景颜色:_buttonColor.value,
onPressed:设置动画,
工具提示:“切换”,
子项:animateDictions(图标:animateDictions.menu\u关闭,进度:\u animationIcon,),
),);
}
制作动画(){
如果(!等间距)
_animationController.forward();
其他的
_animationController.reverse();
等间距=!等间距;
}
@凌驾
小部件构建(构建上下文){
返回定位(
子:列(
mainAxisAlignment:mainAxisAlignment.end,
儿童:[
转化(
转换:矩阵4.translationValues(0.0,_translateButton.value*3.0,0.0),
子项:buttonad(),),
转化(
转换:矩阵4.translationValues(0.0,_translateButton.value*2.0,0.0),
子项:buttonEdit(),),
转化(
转换:矩阵4.translationValues(0.0,_translateButton.value,0.0),
子项:buttonDelete(),),
按钮切换(),
],
),
);
}
}
不要这样做。材料不是这样工作的。有一个晶圆厂就这样!如果你有混合的内容,考虑用不同的方式。使用Navigtor.push并在那里显示选项。如果你想拥有上下文相关的东西,你可以在点击时滑动互动程序,使其变大并显示动作
import 'package:flutter/material.dart';
class AnimatedFAB extends StatefulWidget {
@override
_AnimatedFABState createState() => _AnimatedFABState();
}
class _AnimatedFABState extends State<AnimatedFAB> with SingleTickerProviderStateMixin {
bool isOpened = false;
AnimationController _animationController;
Animation<Color> _buttonColor;
Animation<double> _animationIcon;
Animation<double> _translateButton;
Curve _curve = Curves.easeOut;
double _fabHeight = 56.0;
@override
void initState() {
_animationController =
AnimationController(vsync: this, duration: Duration(milliseconds: 500))
..addListener(() {
setState(() {});
});
_animationIcon = Tween<double>(begin: 0.0, end: 1.0).animate(_animationController);
_buttonColor = ColorTween(begin: Colors.lightBlue, end: Colors.amber).animate(CurvedAnimation(parent: _animationController,
curve: Interval(0.00, 1.00, curve: Curves.linear)));
_translateButton = Tween<double> (begin: _fabHeight, end: -14.0)
.animate(CurvedAnimation(
parent: _animationController,
curve: Interval(0.0, 0.75, curve: _curve)
)
);
super.initState();
}
@override
void dispose() {
_animationController.dispose();
super.dispose();
}
//Widgets
Widget buttonAdd() {
return Container(
child: FloatingActionButton(
onPressed: () {},
tooltip: "Add",
child: Icon(Icons.add),
),);
}
Widget buttonEdit() {
return Container(
child: FloatingActionButton(
onPressed: () {},
tooltip: "Edit",
child: Icon(Icons.edit),
),);
}
Widget buttonDelete() {
return Container(
child: FloatingActionButton(
onPressed: () {},
tooltip: "Delete",
child: Icon(Icons.delete),
),);
}
Widget buttonToggle() {
return Container(
child: FloatingActionButton(
backgroundColor: _buttonColor.value,
onPressed: animate,
tooltip: "Toggle",
child: AnimatedIcon(icon: AnimatedIcons.menu_close, progress: _animationIcon,),
),);
}
animate() {
if (!isOpened)
_animationController.forward();
else
_animationController.reverse();
isOpened = !isOpened;
}
@override
Widget build(BuildContext context) {
return Positioned(
child: Column(
mainAxisAlignment: MainAxisAlignment.end,
children: [
Transform(
transform: Matrix4.translationValues(0.0, _translateButton.value*3.0, 0.0),
child: buttonAdd(),),
Transform(
transform: Matrix4.translationValues(0.0, _translateButton.value*2.0, 0.0),
child: buttonEdit(),),
Transform(
transform: Matrix4.translationValues(0.0, _translateButton.value, 0.0),
child: buttonDelete(),),
buttonToggle(),
],
),
);
}
}