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Reland Added MaterialStatesController, updated InkWell et al. #103167…
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102
examples/api/lib/material/text_button/text_button.1.dart
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| @@ -0,0 +1,102 @@ | ||
| // Copyright 2014 The Flutter Authors. All rights reserved. | ||
| // Use of this source code is governed by a BSD-style license that can be | ||
| // found in the LICENSE file. | ||
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| import 'package:flutter/material.dart'; | ||
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| void main() { | ||
| runApp(const MaterialApp(home: Home())); | ||
| } | ||
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| class SelectableButton extends StatefulWidget { | ||
| const SelectableButton({ | ||
| super.key, | ||
| required this.selected, | ||
| this.style, | ||
| required this.onPressed, | ||
| required this.child, | ||
| }); | ||
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| final bool selected; | ||
| final ButtonStyle? style; | ||
| final VoidCallback? onPressed; | ||
| final Widget child; | ||
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| @override | ||
| State<SelectableButton> createState() => _SelectableButtonState(); | ||
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| } | ||
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| class _SelectableButtonState extends State<SelectableButton> { | ||
| late final MaterialStatesController statesController; | ||
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| @override | ||
| void initState() { | ||
| super.initState(); | ||
| statesController = MaterialStatesController(<MaterialState>{ | ||
| if (widget.selected) MaterialState.selected | ||
| }); | ||
| } | ||
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| @override | ||
| void didUpdateWidget(SelectableButton oldWidget) { | ||
| super.didUpdateWidget(oldWidget); | ||
| if (widget.selected != oldWidget.selected) { | ||
| statesController.update(MaterialState.selected, widget.selected); | ||
| } | ||
| } | ||
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| @override | ||
| Widget build(BuildContext context) { | ||
| return TextButton( | ||
| statesController: statesController, | ||
| style: widget.style, | ||
| onPressed: widget.onPressed, | ||
| child: widget.child, | ||
| ); | ||
| } | ||
| } | ||
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| class Home extends StatefulWidget { | ||
| const Home({ super.key }); | ||
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| @override | ||
| State<Home> createState() => _HomeState(); | ||
| } | ||
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| class _HomeState extends State<Home> { | ||
| bool selected = false; | ||
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| @override | ||
| Widget build(BuildContext context) { | ||
| return Scaffold( | ||
| body: Center( | ||
| child: SelectableButton( | ||
| selected: selected, | ||
| style: ButtonStyle( | ||
| foregroundColor: MaterialStateProperty.resolveWith<Color?>( | ||
| (Set<MaterialState> states) { | ||
| if (states.contains(MaterialState.selected)) { | ||
| return Colors.white; | ||
| } | ||
| return null; // defer to the defaults | ||
| }, | ||
| ), | ||
| backgroundColor: MaterialStateProperty.resolveWith<Color?>( | ||
| (Set<MaterialState> states) { | ||
| if (states.contains(MaterialState.selected)) { | ||
| return Colors.indigo; | ||
| } | ||
| return null; // defer to the defaults | ||
| }, | ||
| ), | ||
| ), | ||
| onPressed: () { | ||
| setState(() { selected = !selected; }); | ||
| }, | ||
| child: const Text('toggle selected'), | ||
| ), | ||
| ), | ||
| ); | ||
| } | ||
| } |
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examples/api/test/material/text_button/text_button.1_test.dart
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,51 @@ | ||
| // Copyright 2014 The Flutter Authors. All rights reserved. | ||
| // Use of this source code is governed by a BSD-style license that can be | ||
| // found in the LICENSE file. | ||
|
|
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| import 'package:flutter/material.dart'; | ||
| import 'package:flutter_api_samples/material/text_button/text_button.1.dart' as example; | ||
| import 'package:flutter_test/flutter_test.dart'; | ||
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| void main() { | ||
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| testWidgets('SelectableButton', (WidgetTester tester) async { | ||
| await tester.pumpWidget( | ||
| MaterialApp( | ||
| theme: ThemeData( | ||
| colorScheme: const ColorScheme.light(), | ||
| ), | ||
| home: const example.Home(), | ||
| ), | ||
| ); | ||
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| final Finder button = find.byType(example.SelectableButton); | ||
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| example.SelectableButton buttonWidget() => tester.widget<example.SelectableButton>(button); | ||
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| Material buttonMaterial() { | ||
| return tester.widget<Material>( | ||
| find.descendant( | ||
| of: find.byType(example.SelectableButton), | ||
| matching: find.byType(Material), | ||
| ), | ||
| ); | ||
| } | ||
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| expect(buttonWidget().selected, false); | ||
| expect(buttonMaterial().textStyle!.color, const ColorScheme.light().primary); // default button foreground color | ||
| expect(buttonMaterial().color, Colors.transparent); // default button background color | ||
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| await tester.tap(button); // Toggles the button's selected property. | ||
| await tester.pumpAndSettle(); | ||
| expect(buttonWidget().selected, true); | ||
| expect(buttonMaterial().textStyle!.color, Colors.white); | ||
| expect(buttonMaterial().color, Colors.indigo); | ||
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| await tester.tap(button); // Toggles the button's selected property. | ||
| await tester.pumpAndSettle(); | ||
| expect(buttonWidget().selected, false); | ||
| expect(buttonMaterial().textStyle!.color, const ColorScheme.light().primary); | ||
| expect(buttonMaterial().color, Colors.transparent); | ||
| }); | ||
| } |
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