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45 changes: 45 additions & 0 deletions
45
notes/flutter_web/lib/routes/notes/cheatsheets/widgets/_examples/Form_Checkbox.dart
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,45 @@ | ||
| import 'package:flutter/material.dart'; | ||
| import 'package:you_flutter/state.dart'; | ||
|
|
||
| main() { | ||
| runApp(const MaterialApp(home: Scaffold(body: Form_Checkbox()))); | ||
| } | ||
|
|
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| // ignore: camel_case_types | ||
| class Form_Checkbox extends StatefulWidget { | ||
| const Form_Checkbox({super.key}); | ||
|
|
||
| @override | ||
| State<StatefulWidget> createState() { | ||
| return _State(); | ||
| } | ||
| } | ||
|
|
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| class _State extends State<Form_Checkbox> { | ||
| final Value<bool?> checkbox1 = (null as bool?).signal(); | ||
| final Value<bool> checkbox2 = false.signal(); | ||
|
|
||
| @override | ||
| Widget build(BuildContext context) { | ||
| return Watch( | ||
| builder: (context) { | ||
| return Column( | ||
| children: <Widget>[ | ||
| Row( | ||
| children: [ | ||
| const Text('tristate: true'), | ||
| Checkbox(tristate: true, checkColor: Colors.white, value: checkbox1.value, onChanged: (value) => checkbox1.value = value), | ||
| ], | ||
| ), | ||
| Row( | ||
| children: [ | ||
| const Text('tristate: false'), | ||
| Checkbox(tristate: false, checkColor: Colors.white, value: checkbox2.value, onChanged: (value) => checkbox2.value = value!), | ||
| ], | ||
| ), | ||
| ], | ||
| ); | ||
| }, | ||
| ); | ||
| } | ||
| } |
61 changes: 61 additions & 0 deletions
61
notes/flutter_web/lib/routes/notes/cheatsheets/widgets/_examples/Form_SegmentButton.dart
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,61 @@ | ||
| import 'package:flutter/material.dart'; | ||
| import 'package:you_flutter/state.dart'; | ||
|
|
||
| main() { | ||
| runApp(const MaterialApp(home: Scaffold(body: Form_SegmentButton()))); | ||
| } | ||
|
|
||
| // ignore: camel_case_types | ||
| class Form_SegmentButton extends StatefulWidget { | ||
| const Form_SegmentButton({super.key}); | ||
|
|
||
| @override | ||
| State<StatefulWidget> createState() { | ||
| return _State(); | ||
| } | ||
| } | ||
|
|
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| class _State extends State<Form_SegmentButton> { | ||
| final Value<ThemeMode> themeMode = ThemeMode.system.signal(); | ||
| final Set<TargetPlatform> targetPlatforms = <TargetPlatform>{TargetPlatform.macOS, TargetPlatform.linux}.signal(); | ||
|
|
||
| @override | ||
| Widget build(BuildContext context) { | ||
| return Watch(builder: (context) { | ||
| return Column( | ||
| mainAxisAlignment: MainAxisAlignment.spaceBetween, | ||
| children: [ | ||
| SegmentedButton<ThemeMode>( | ||
| multiSelectionEnabled: false, | ||
| segments: const <ButtonSegment<ThemeMode>>[ | ||
| ButtonSegment<ThemeMode>(value: ThemeMode.light, label: Text('Light'), icon: Icon(Icons.sunny)), | ||
| ButtonSegment<ThemeMode>(value: ThemeMode.system, label: Text('System'), icon: Icon(Icons.brightness_auto)), | ||
| ButtonSegment<ThemeMode>(value: ThemeMode.dark, label: Text('Dark'), icon: Icon(Icons.dark_mode)), | ||
| ], | ||
| selected: <ThemeMode>{themeMode.value}, | ||
| onSelectionChanged: (newSelection) { | ||
| themeMode.value = newSelection.first; | ||
| }, | ||
| ), | ||
| const SizedBox(height: 10), | ||
| SegmentedButton<TargetPlatform>( | ||
| segments: const <ButtonSegment<TargetPlatform>>[ | ||
| ButtonSegment<TargetPlatform>(value: TargetPlatform.android, label: Text('android')), | ||
| ButtonSegment<TargetPlatform>(value: TargetPlatform.fuchsia, label: Text('fuchsia')), | ||
| ButtonSegment<TargetPlatform>(value: TargetPlatform.iOS, label: Text('iOS')), | ||
| ButtonSegment<TargetPlatform>(value: TargetPlatform.linux, label: Text('linux')), | ||
| ButtonSegment<TargetPlatform>(value: TargetPlatform.macOS, label: Text('macOS')), | ||
| ButtonSegment<TargetPlatform>(value: TargetPlatform.windows, label: Text('windows')), | ||
| ], | ||
| selected: targetPlatforms, | ||
| onSelectionChanged: (newSelection) { | ||
| targetPlatforms.clear(); | ||
| targetPlatforms.addAll(newSelection); | ||
| }, | ||
| multiSelectionEnabled: true, | ||
| ), | ||
| ], | ||
| ); | ||
| }); | ||
| } | ||
| } |
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