Flutter floating action button with speed dial - dart

Question

Is there any ready made widget or where to get started floating action button with speed dial actions in Flutter.

Answer 1

Here's a sketch of how to implement a Speed dial using FloatingActionButton.
import 'package:flutter/material.dart';
import 'dart:math' as math;
void main() {
runApp(new MyApp());
}
class MyApp extends StatelessWidget {
#override
Widget build(BuildContext context) {
return new MaterialApp(
home: new MyHomePage(),
);
}
}
class MyHomePage extends StatefulWidget {
#override
State createState() => new MyHomePageState();
}
class MyHomePageState extends State<MyHomePage> with TickerProviderStateMixin {
AnimationController _controller;
static const List<IconData> icons = const [ Icons.sms, Icons.mail, Icons.phone ];
#override
void initState() {
_controller = new AnimationController(
vsync: this,
duration: const Duration(milliseconds: 500),
);
}
Widget build(BuildContext context) {
Color backgroundColor = Theme.of(context).cardColor;
Color foregroundColor = Theme.of(context).accentColor;
return new Scaffold(
appBar: new AppBar(title: new Text('Speed Dial Example')),
floatingActionButton: new Column(
mainAxisSize: MainAxisSize.min,
children: new List.generate(icons.length, (int index) {
Widget child = new Container(
height: 70.0,
width: 56.0,
alignment: FractionalOffset.topCenter,
child: new ScaleTransition(
scale: new CurvedAnimation(
parent: _controller,
curve: new Interval(
0.0,
1.0 - index / icons.length / 2.0,
curve: Curves.easeOut
),
),
child: new FloatingActionButton(
heroTag: null,
backgroundColor: backgroundColor,
mini: true,
child: new Icon(icons[index], color: foregroundColor),
onPressed: () {},
),
),
);
return child;
}).toList()..add(
new FloatingActionButton(
heroTag: null,
child: new AnimatedBuilder(
animation: _controller,
builder: (BuildContext context, Widget child) {
return new Transform(
transform: new Matrix4.rotationZ(_controller.value * 0.5 * math.pi),
alignment: FractionalOffset.center,
child: new Icon(_controller.isDismissed ? Icons.share : Icons.close),
);
},
),
onPressed: () {
if (_controller.isDismissed) {
_controller.forward();
} else {
_controller.reverse();
}
},
),
),
),
);
}
}

Answer 2

This plugin could serve you:
https://pub.dartlang.org/packages/flutter_speed_dial
You need declare the dependency in the pubspect.yaml file
dependencies:
flutter:
sdk: flutter
flutter_speed_dial: ^1.0.9
Here is an example:
Widget build(BuildContext context) {
return Scaffold(
floatingActionButton: SpeedDial(
animatedIcon: AnimatedIcons.menu_close,
animatedIconTheme: IconThemeData(size: 22.0),
// this is ignored if animatedIcon is non null
// child: Icon(Icons.add),
visible: _dialVisible,
curve: Curves.bounceIn,
overlayColor: Colors.black,
overlayOpacity: 0.5,
onOpen: () => print('OPENING DIAL'),
onClose: () => print('DIAL CLOSED'),
tooltip: 'Speed Dial',
heroTag: 'speed-dial-hero-tag',
backgroundColor: Colors.white,
foregroundColor: Colors.black,
elevation: 8.0,
shape: CircleBorder(),
children: [
SpeedDialChild(
child: Icon(Icons.accessibility),
backgroundColor: Colors.red,
label: 'First',
labelStyle: TextTheme(fontSize: 18.0),
onTap: () => print('FIRST CHILD')
),
SpeedDialChild(
child: Icon(Icons.brush),
backgroundColor: Colors.blue,
label: 'Second',
labelStyle: TextTheme(fontSize: 18.0),
onTap: () => print('SECOND CHILD'),
),
SpeedDialChild(
child: Icon(Icons.keyboard_voice),
backgroundColor: Colors.green,
label: 'Third',
labelStyle: TextTheme(fontSize: 18.0),
onTap: () => print('THIRD CHILD'),
),
],
),
);
}