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@sebaslogen
Created January 10, 2020 20:33
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Save sebaslogen/a3b17f491e9e2c6999843fa233cfeff7 to your computer and use it in GitHub Desktop.
Flutter colored slider experiment
import 'package:flutter/material.dart';
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
debugShowCheckedModeBanner: false,
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> {
int _counter = 0;
final colors = [
Colors.blue,
Colors.pinkAccent,
Colors.purpleAccent,
Colors.redAccent
];
void _incrementCounter() {
setState(() {
_counter++;
});
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(widget.title),
),
body: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Slider(
value: _counter.ceilToDouble(),
onChanged: (newVal) {
setState(() {
_counter = newVal.floor();
});
},
activeColor: colors[_counter],
min: 0,
max: colors.length.ceilToDouble() - 1,
divisions: colors.length - 1,
label: "$_counter",
),
Text(
'You have pushed the button this many times:',
),
Text(
'$_counter',
style: Theme.of(context).textTheme.display1,
),
],
),
),
floatingActionButton: FloatingActionButton(
onPressed: _incrementCounter,
tooltip: 'Increment',
child: Icon(Icons.add),
),
);
}
}
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