1. 03 Jan, 2024 1 commit
    • Furkan Acar's avatar
      Add `SegmentedButton.styleFrom` (#137542) · 83ac7605
      Furkan Acar authored
      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>
      83ac7605
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