Creare temi in Flutter con FlexColorScheme
FlexColorScheme è un package per Flutter che ci permette di avere un'altra palette di colori da cui attingere per creare dei temi veramente interessanti.
Inoltre mette a disposizione anche un playground online da cui possiamo scegliere tra diverse palette e modificarle; poi ci basta copirare il codice.
Cominciamo con l'installazione:
flutter pub add flex_color_scheme
Qui un eprimo esempio:
import 'package:flutter/material.dart';
import 'package:flex_color_scheme/flex_color_scheme.dart';
void main() {
runApp(const MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({super.key});
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
theme: FlexThemeData.light(scheme: FlexScheme.mallardGreen),
darkTheme: FlexThemeData.dark(scheme: FlexScheme.mallardGreen),
themeMode: ThemeMode.light,
home: const MyHomePage(title: 'Flutter Demo Home Page'),
);
}
}
class MyHomePage extends StatefulWidget {
const MyHomePage({super.key, required this.title});
final String title;
@override
State<MyHomePage> createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
backgroundColor: Theme.of(context).colorScheme.primary,
title: Text(widget.title),
),
body: const Center(
child: Text('CIAO'),
),
);
}
}
Usate il parametro themeMode per vedere le differenze tra dark e light.
Poi io mi sono anche copiato un tema dal playground:
import 'package:flutter/material.dart';
import 'package:flex_color_scheme/flex_color_scheme.dart';
void main() {
runApp(const MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({super.key});
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
theme: FlexThemeData.light(
scheme: FlexScheme.blumineBlue,
surfaceMode: FlexSurfaceMode.levelSurfacesLowScaffold,
blendLevel: 7,
subThemesData: const FlexSubThemesData(
blendOnLevel: 10,
blendOnColors: false,
useTextTheme: true,
useM2StyleDividerInM3: true,
alignedDropdown: true,
useInputDecoratorThemeInDialogs: true,
),
visualDensity: FlexColorScheme.comfortablePlatformDensity,
useMaterial3: true,
swapLegacyOnMaterial3: true,
),
darkTheme: FlexThemeData.dark(
scheme: FlexScheme.blumineBlue,
surfaceMode: FlexSurfaceMode.levelSurfacesLowScaffold,
blendLevel: 13,
subThemesData: const FlexSubThemesData(
blendOnLevel: 20,
useTextTheme: true,
useM2StyleDividerInM3: true,
alignedDropdown: true,
useInputDecoratorThemeInDialogs: true,
),
visualDensity: FlexColorScheme.comfortablePlatformDensity,
useMaterial3: true,
swapLegacyOnMaterial3: true,
),
themeMode: ThemeMode.dark,
home: const MyHomePage(title: 'Flutter Demo Home Page'),
);
}
}
class MyHomePage extends StatefulWidget {
const MyHomePage({super.key, required this.title});
final String title;
@override
State<MyHomePage> createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
backgroundColor: Theme.of(context).colorScheme.primary,
title: Text(widget.title),
),
body: const Center(
child: Text('CIAO'),
),
);
}
}
Enjoy!
dart flutter theme flex_color_scheme
Commentami!