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fixes https://github.com/flutter/flutter/issues/138289 --- SegmentedButtom.styleFrom has been added to the segment button, so there is no longer any need to the button style from the beginning. It works like ElevatedButton.styleFrom only I added selectedForegroundColor, selectedBackgroundColor. In this way, the user will be able to change the color first without checking the MaterialState states. I added tests of the same controls. #129215 I opened this problem myself, but I was rejected because I handled too many items in a PR. For now, I wrote a structure that only handles MaterialStates instead of users. old (still avaliable) <img width="626" alt="image" src="https://github.com/flutter/flutter/assets/65075121/9446b13b-c355-4d20-bda2-c47a23d42d4f"> new (just an option for developer) <img width="483" alt="image" src="https://github.com/flutter/flutter/assets/65075121/0a645257-4c83-4029-9484-bd746c02265f"> ### Code sample <details> <summary>expand to view the code sample</summary> ```dart import 'package:flutter/material.dart'; /// Flutter code sample for [SegmentedButton]. void main() { runApp(const SegmentedButtonApp()); } enum Calendar { day, week, month, year } class SegmentedButtonApp extends StatefulWidget { const SegmentedButtonApp({super.key}); @override State<SegmentedButtonApp> createState() => _SegmentedButtonAppState(); } class _SegmentedButtonAppState extends State<SegmentedButtonApp> { Calendar calendarView = Calendar.day; @override Widget build(BuildContext context) { return MaterialApp( theme: ThemeData(useMaterial3: true), home: Scaffold( body: Center( child: SegmentedButton<Calendar>( style: SegmentedButton.styleFrom( foregroundColor: Colors.amber, visualDensity: VisualDensity.comfortable, ), // style: const ButtonStyle( // foregroundColor: MaterialStatePropertyAll<Color>(Colors.deepPurple), // visualDensity: VisualDensity.comfortable, // ), segments: const <ButtonSegment<Calendar>>[ ButtonSegment<Calendar>( value: Calendar.day, label: Text('Day'), icon: Icon(Icons.calendar_view_day)), ButtonSegment<Calendar>( value: Calendar.week, label: Text('Week'), icon: Icon(Icons.calendar_view_week)), ButtonSegment<Calendar>( value: Calendar.month, label: Text('Month'), icon: Icon(Icons.calendar_view_month)), ButtonSegment<Calendar>( value: Calendar.year, label: Text('Year'), icon: Icon(Icons.calendar_today)), ], selected: <Calendar>{calendarView}, onSelectionChanged: (Set<Calendar> newSelection) { setState(() { calendarView = newSelection.first; }); }, ), ), ), ); } } ``` </details>
67 lines
2.1 KiB
Dart
67 lines
2.1 KiB
Dart
// Copyright 2014 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'package:flutter/material.dart';
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/// Flutter code sample for [SegmentedButton.styleFrom].
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void main() {
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runApp(const SegmentedButtonApp());
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}
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class SegmentedButtonApp extends StatelessWidget {
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const SegmentedButtonApp({super.key});
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@override
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Widget build(BuildContext context) {
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return const MaterialApp(
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home: Scaffold(
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body: Center(
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child: SegmentedButtonExample(),
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),
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),
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);
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}
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}
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class SegmentedButtonExample extends StatefulWidget {
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const SegmentedButtonExample({super.key});
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@override
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State<SegmentedButtonExample> createState() => _SegmentedButtonExampleState();
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}
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enum Calendar { day, week, month, year }
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class _SegmentedButtonExampleState extends State<SegmentedButtonExample> {
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Calendar calendarView = Calendar.week;
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@override
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Widget build(BuildContext context) {
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return SegmentedButton<Calendar>(
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style: SegmentedButton.styleFrom(
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backgroundColor: Colors.grey[200],
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foregroundColor: Colors.red,
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selectedForegroundColor: Colors.white,
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selectedBackgroundColor: Colors.green,
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),
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segments: const <ButtonSegment<Calendar>>[
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ButtonSegment<Calendar>(value: Calendar.day, label: Text('Day'), icon: Icon(Icons.calendar_view_day)),
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ButtonSegment<Calendar>(value: Calendar.week, label: Text('Week'), icon: Icon(Icons.calendar_view_week)),
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ButtonSegment<Calendar>(value: Calendar.month, label: Text('Month'), icon: Icon(Icons.calendar_view_month)),
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ButtonSegment<Calendar>(value: Calendar.year, label: Text('Year'), icon: Icon(Icons.calendar_today)),
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],
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selected: <Calendar>{calendarView},
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onSelectionChanged: (Set<Calendar> newSelection) {
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setState(() {
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// By default there is only a single segment that can be
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// selected at one time, so its value is always the first
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// item in the selected set.
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calendarView = newSelection.first;
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});
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},
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);
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}
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}
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