Custom slider with emojis - dart

Question

I am building a flutter app and want to create a custom slider with emojis very similar to the reflectly app. I am attaching a screenshot , as you change the slider the emoji changes. I am pretty new to flutter and am struggling with the slider widget

Answer 1

You could do something like that:
I didn't use images for emojis faces but could put you in the right direction.
Full code:
import 'package:flutter/material.dart';
const _emojis = ['😃','😜','🤓','😁','😂','😞'];
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
// This widget is the root of your application.
#override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: MyHomePage(title: 'Flutter Demo Home Page'),
);
}
}
class MyHomePage extends StatefulWidget {
MyHomePage({Key key, this.title}) : super(key: key);
final String title;
#override
_MyHomePageState createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
double _value = 0;
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(widget.title),
),
body: Container(
decoration: BoxDecoration(
gradient: new LinearGradient(
colors: [Colors.teal, Colors.tealAccent],
begin: Alignment.bottomLeft,
end: Alignment.topRight
)
),
child: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Text(
'${_emojis[_value.toInt()]}',
style: Theme.of(context).textTheme.display1,
),
Padding(
padding: const EdgeInsets.symmetric(horizontal: 8.0),
child: Container(
child: Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Text(_emojis[0], softWrap: true),
Expanded(
child: Slider(
value: _value,
//label: _emojis[_value.toInt()],
min: 0.0,
max: 5.0,
divisions: 5,
onChangeStart: (double value) {
print('Start value is ' + value.toString());
},
onChangeEnd: (double value) {
print('Finish value is ' + value.toString());
},
onChanged: (double value) {
setState(() {
_value = value;
});
},
activeColor: Colors.white,
inactiveColor: Colors.black45,
),
),
Text(_emojis[5], softWrap: true,)
],
),
),
),
],
),
),
),
);
}
}

Answer 2

This reviewpage animation is close to 90% of the reflectly animation.