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2309 lines
66 KiB
2309 lines
66 KiB
// Copyright 2021 The Flutter team. 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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import 'package:flutter/services.dart';
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const rowDivider = SizedBox(width: 20);
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const colDivider = SizedBox(height: 10);
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const tinySpacing = 3.0;
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const smallSpacing = 10.0;
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const double cardWidth = 115;
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const double widthConstraint = 450;
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class FirstComponentList extends StatelessWidget {
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const FirstComponentList({
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super.key,
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required this.showNavBottomBar,
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required this.scaffoldKey,
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required this.showSecondList,
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});
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final bool showNavBottomBar;
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final GlobalKey<ScaffoldState> scaffoldKey;
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final bool showSecondList;
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@override
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Widget build(BuildContext context) {
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// Fully traverse this list before moving on.
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return FocusTraversalGroup(
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child: ListView(
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padding: showSecondList
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? const EdgeInsetsDirectional.only(end: smallSpacing)
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: EdgeInsets.zero,
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children: [
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const Actions(),
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colDivider,
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const Communication(),
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colDivider,
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const Containment(),
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if (!showSecondList) ...[
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colDivider,
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Navigation(scaffoldKey: scaffoldKey),
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colDivider,
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const Selection(),
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colDivider,
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const TextInputs()
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],
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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 SecondComponentList extends StatelessWidget {
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const SecondComponentList({
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super.key,
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required this.scaffoldKey,
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});
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final GlobalKey<ScaffoldState> scaffoldKey;
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@override
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Widget build(BuildContext context) {
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// Fully traverse this list before moving on.
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return FocusTraversalGroup(
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child: ListView(
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padding: const EdgeInsetsDirectional.only(end: smallSpacing),
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children: <Widget>[
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Navigation(scaffoldKey: scaffoldKey),
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colDivider,
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const Selection(),
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colDivider,
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const TextInputs(),
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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 Actions extends StatelessWidget {
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const Actions({super.key});
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@override
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Widget build(BuildContext context) {
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return const ComponentGroupDecoration(label: 'Actions', children: <Widget>[
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Buttons(),
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FloatingActionButtons(),
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IconToggleButtons(),
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SegmentedButtons(),
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]);
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}
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}
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class Communication extends StatelessWidget {
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const Communication({super.key});
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@override
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Widget build(BuildContext context) {
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return const ComponentGroupDecoration(label: 'Communication', children: [
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NavigationBars(
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selectedIndex: 1,
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isExampleBar: true,
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isBadgeExample: true,
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),
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ProgressIndicators(),
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SnackBarSection(),
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]);
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}
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}
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class Containment extends StatelessWidget {
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const Containment({super.key});
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@override
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Widget build(BuildContext context) {
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return const ComponentGroupDecoration(label: 'Containment', children: [
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BottomSheetSection(),
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Cards(),
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Dialogs(),
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Dividers(),
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// TODO: Add Lists, https://github.com/flutter/flutter/issues/114006
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// TODO: Add Side sheets, https://github.com/flutter/flutter/issues/119328
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]);
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}
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}
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class Navigation extends StatelessWidget {
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const Navigation({super.key, required this.scaffoldKey});
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final GlobalKey<ScaffoldState> scaffoldKey;
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@override
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Widget build(BuildContext context) {
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return ComponentGroupDecoration(label: 'Navigation', children: [
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const BottomAppBars(),
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const NavigationBars(
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selectedIndex: 0,
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isExampleBar: true,
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),
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NavigationDrawers(scaffoldKey: scaffoldKey),
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const NavigationRails(),
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// TODO: Add Search https://github.com/flutter/flutter/issues/117483
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const Tabs(),
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const TopAppBars(),
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]);
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}
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}
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class Selection extends StatelessWidget {
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const Selection({super.key});
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@override
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Widget build(BuildContext context) {
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return const ComponentGroupDecoration(label: 'Selection', children: [
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Checkboxes(),
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Chips(),
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// TODO: Add Date pickers https://github.com/flutter/flutter/issues/101481
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Menus(),
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Radios(),
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Sliders(),
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Switches(),
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// TODO: Add Time pickers https://github.com/flutter/flutter/issues/101480
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]);
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}
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}
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class TextInputs extends StatelessWidget {
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const TextInputs({super.key});
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@override
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Widget build(BuildContext context) {
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return const ComponentGroupDecoration(
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label: 'Text inputs',
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children: [TextFields()],
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);
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}
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}
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class Buttons extends StatefulWidget {
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const Buttons({super.key});
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@override
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State<Buttons> createState() => _ButtonsState();
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}
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class _ButtonsState extends State<Buttons> {
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@override
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Widget build(BuildContext context) {
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return ComponentDecoration(
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label: 'Common buttons',
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tooltipMessage:
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'Use ElevatedButton, FilledButton, FilledButton.tonal, OutlinedButton, or TextButton',
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child: SingleChildScrollView(
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scrollDirection: Axis.horizontal,
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child: Row(
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mainAxisAlignment: MainAxisAlignment.spaceAround,
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children: const <Widget>[
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ButtonsWithoutIcon(isDisabled: false),
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ButtonsWithIcon(),
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ButtonsWithoutIcon(isDisabled: true),
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],
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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 ButtonsWithoutIcon extends StatelessWidget {
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final bool isDisabled;
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const ButtonsWithoutIcon({super.key, required this.isDisabled});
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@override
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Widget build(BuildContext context) {
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return Padding(
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padding: const EdgeInsets.symmetric(horizontal: 5.0),
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child: IntrinsicWidth(
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: <Widget>[
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ElevatedButton(
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onPressed: isDisabled ? null : () {},
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child: const Text('Elevated'),
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),
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colDivider,
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FilledButton(
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onPressed: isDisabled ? null : () {},
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child: const Text('Filled'),
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),
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colDivider,
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FilledButton.tonal(
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onPressed: isDisabled ? null : () {},
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child: const Text('Filled tonal'),
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),
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colDivider,
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OutlinedButton(
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onPressed: isDisabled ? null : () {},
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child: const Text('Outlined'),
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),
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colDivider,
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TextButton(
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onPressed: isDisabled ? null : () {},
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child: const Text('Text'),
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),
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],
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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 ButtonsWithIcon extends StatelessWidget {
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const ButtonsWithIcon({super.key});
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@override
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Widget build(BuildContext context) {
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return Padding(
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padding: const EdgeInsets.symmetric(horizontal: 10.0),
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child: IntrinsicWidth(
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: <Widget>[
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ElevatedButton.icon(
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onPressed: () {},
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icon: const Icon(Icons.add),
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label: const Text('Icon'),
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),
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colDivider,
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FilledButton.icon(
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onPressed: () {},
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label: const Text('Icon'),
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icon: const Icon(Icons.add),
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),
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colDivider,
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FilledButton.tonalIcon(
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onPressed: () {},
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label: const Text('Icon'),
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icon: const Icon(Icons.add),
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),
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colDivider,
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OutlinedButton.icon(
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onPressed: () {},
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icon: const Icon(Icons.add),
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label: const Text('Icon'),
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),
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colDivider,
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TextButton.icon(
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onPressed: () {},
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icon: const Icon(Icons.add),
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label: const Text('Icon'),
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)
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],
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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 FloatingActionButtons extends StatelessWidget {
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const FloatingActionButtons({super.key});
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@override
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Widget build(BuildContext context) {
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return ComponentDecoration(
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label: 'Floating action buttons',
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tooltipMessage:
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'Use FloatingActionButton or FloatingActionButton.extended',
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child: Wrap(
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crossAxisAlignment: WrapCrossAlignment.center,
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runSpacing: smallSpacing,
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spacing: smallSpacing,
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children: [
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FloatingActionButton.small(
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onPressed: () {},
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tooltip: 'Small',
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child: const Icon(Icons.add),
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),
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FloatingActionButton.extended(
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onPressed: () {},
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tooltip: 'Extended',
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icon: const Icon(Icons.add),
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label: const Text('Create'),
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),
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FloatingActionButton(
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onPressed: () {},
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tooltip: 'Standard',
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child: const Icon(Icons.add),
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),
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FloatingActionButton.large(
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onPressed: () {},
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tooltip: 'Large',
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child: const Icon(Icons.add),
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),
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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 Cards extends StatelessWidget {
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const Cards({super.key});
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@override
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Widget build(BuildContext context) {
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return ComponentDecoration(
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label: 'Cards',
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tooltipMessage: 'Use Card',
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child: Wrap(
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alignment: WrapAlignment.spaceEvenly,
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children: [
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SizedBox(
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width: cardWidth,
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child: Card(
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child: Container(
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padding: const EdgeInsets.fromLTRB(10, 5, 5, 10),
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child: Column(
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children: [
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Align(
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alignment: Alignment.topRight,
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child: IconButton(
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icon: const Icon(Icons.more_vert),
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onPressed: () {},
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),
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),
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const SizedBox(height: 20),
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const Align(
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alignment: Alignment.bottomLeft,
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child: Text('Elevated'),
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)
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],
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),
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),
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),
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),
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SizedBox(
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width: cardWidth,
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child: Card(
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color: Theme.of(context).colorScheme.surfaceVariant,
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elevation: 0,
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child: Container(
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padding: const EdgeInsets.fromLTRB(10, 5, 5, 10),
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child: Column(
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children: [
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Align(
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alignment: Alignment.topRight,
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child: IconButton(
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icon: const Icon(Icons.more_vert),
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onPressed: () {},
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),
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),
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const SizedBox(height: 20),
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const Align(
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alignment: Alignment.bottomLeft,
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child: Text('Filled'),
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)
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],
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),
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),
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),
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),
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SizedBox(
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width: cardWidth,
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child: Card(
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elevation: 0,
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shape: RoundedRectangleBorder(
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side: BorderSide(
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color: Theme.of(context).colorScheme.outline,
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),
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borderRadius: const BorderRadius.all(Radius.circular(12)),
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),
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child: Container(
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padding: const EdgeInsets.fromLTRB(10, 5, 5, 10),
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child: Column(
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children: [
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Align(
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alignment: Alignment.topRight,
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child: IconButton(
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icon: const Icon(Icons.more_vert),
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onPressed: () {},
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),
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),
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const SizedBox(height: 20),
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const Align(
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alignment: Alignment.bottomLeft,
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child: Text('Outlined'),
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)
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],
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),
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),
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),
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),
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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 _ClearButton extends StatelessWidget {
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const _ClearButton({required this.controller});
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final TextEditingController controller;
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@override
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Widget build(BuildContext context) => IconButton(
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icon: const Icon(Icons.clear),
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onPressed: () => controller.clear(),
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);
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}
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class TextFields extends StatefulWidget {
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const TextFields({super.key});
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@override
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State<TextFields> createState() => _TextFieldsState();
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}
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class _TextFieldsState extends State<TextFields> {
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final TextEditingController _controllerFilled = TextEditingController();
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final TextEditingController _controllerOutlined = TextEditingController();
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@override
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Widget build(BuildContext context) {
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return ComponentDecoration(
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label: 'Text fields',
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tooltipMessage: 'Use TextField with different InputDecoration',
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child: Column(
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mainAxisAlignment: MainAxisAlignment.start,
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children: [
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Padding(
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padding: const EdgeInsets.all(smallSpacing),
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child: TextField(
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controller: _controllerFilled,
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decoration: InputDecoration(
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prefixIcon: const Icon(Icons.search),
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suffixIcon: _ClearButton(controller: _controllerFilled),
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labelText: 'Filled',
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hintText: 'hint text',
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helperText: 'supporting text',
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filled: true,
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),
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),
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),
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Padding(
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padding: const EdgeInsets.all(smallSpacing),
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child: Row(
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mainAxisAlignment: MainAxisAlignment.spaceBetween,
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children: [
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Flexible(
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child: SizedBox(
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width: 200,
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child: TextField(
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maxLength: 10,
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maxLengthEnforcement: MaxLengthEnforcement.none,
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controller: _controllerFilled,
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decoration: InputDecoration(
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prefixIcon: const Icon(Icons.search),
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suffixIcon: _ClearButton(controller: _controllerFilled),
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labelText: 'Filled',
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hintText: 'hint text',
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helperText: 'supporting text',
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filled: true,
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errorText: 'error text',
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),
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),
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),
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),
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const SizedBox(width: smallSpacing),
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Flexible(
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child: SizedBox(
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width: 200,
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child: TextField(
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controller: _controllerFilled,
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enabled: false,
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decoration: InputDecoration(
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prefixIcon: const Icon(Icons.search),
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suffixIcon: _ClearButton(controller: _controllerFilled),
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labelText: 'Disabled',
|
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hintText: 'hint text',
|
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helperText: 'supporting text',
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filled: true,
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),
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),
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),
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),
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],
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),
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),
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Padding(
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padding: const EdgeInsets.all(smallSpacing),
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child: TextField(
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controller: _controllerOutlined,
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decoration: InputDecoration(
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prefixIcon: const Icon(Icons.search),
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suffixIcon: _ClearButton(controller: _controllerOutlined),
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labelText: 'Outlined',
|
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hintText: 'hint text',
|
|
helperText: 'supporting text',
|
|
border: const OutlineInputBorder(),
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),
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),
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),
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Padding(
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|
padding: const EdgeInsets.all(smallSpacing),
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child: Row(
|
|
mainAxisAlignment: MainAxisAlignment.spaceBetween,
|
|
children: [
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Flexible(
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child: SizedBox(
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width: 200,
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child: TextField(
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controller: _controllerOutlined,
|
|
decoration: InputDecoration(
|
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prefixIcon: const Icon(Icons.search),
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suffixIcon:
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_ClearButton(controller: _controllerOutlined),
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labelText: 'Outlined',
|
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hintText: 'hint text',
|
|
helperText: 'supporting text',
|
|
errorText: 'error text',
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border: const OutlineInputBorder(),
|
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filled: true,
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),
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),
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),
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),
|
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const SizedBox(width: smallSpacing),
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|
Flexible(
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|
child: SizedBox(
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width: 200,
|
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child: TextField(
|
|
controller: _controllerOutlined,
|
|
enabled: false,
|
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decoration: InputDecoration(
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prefixIcon: const Icon(Icons.search),
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suffixIcon:
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_ClearButton(controller: _controllerOutlined),
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labelText: 'Disabled',
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hintText: 'hint text',
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helperText: 'supporting text',
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border: const OutlineInputBorder(),
|
|
filled: true,
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),
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),
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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 Dialogs extends StatefulWidget {
|
|
const Dialogs({super.key});
|
|
|
|
@override
|
|
State<Dialogs> createState() => _DialogsState();
|
|
}
|
|
|
|
class _DialogsState extends State<Dialogs> {
|
|
void openDialog(BuildContext context) {
|
|
showDialog<void>(
|
|
context: context,
|
|
builder: (context) => AlertDialog(
|
|
title: const Text('What is a dialog?'),
|
|
content: const Text(
|
|
'A dialog is a type of modal window that appears in front of app content to provide critical information, or prompt for a decision to be made.'),
|
|
actions: <Widget>[
|
|
TextButton(
|
|
child: const Text('Okay'),
|
|
onPressed: () => Navigator.of(context).pop(),
|
|
),
|
|
FilledButton(
|
|
child: const Text('Dismiss'),
|
|
onPressed: () => Navigator.of(context).pop(),
|
|
),
|
|
],
|
|
),
|
|
);
|
|
}
|
|
|
|
void openFullscreenDialog(BuildContext context) {
|
|
showDialog<void>(
|
|
context: context,
|
|
builder: (context) => Dialog.fullscreen(
|
|
child: Padding(
|
|
padding: const EdgeInsets.all(20.0),
|
|
child: Scaffold(
|
|
appBar: AppBar(
|
|
title: const Text('Full-screen dialog'),
|
|
centerTitle: false,
|
|
leading: IconButton(
|
|
icon: const Icon(Icons.close),
|
|
onPressed: () => Navigator.of(context).pop(),
|
|
),
|
|
actions: [
|
|
TextButton(
|
|
child: const Text('Close'),
|
|
onPressed: () => Navigator.of(context).pop(),
|
|
),
|
|
],
|
|
),
|
|
),
|
|
),
|
|
),
|
|
);
|
|
}
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
return ComponentDecoration(
|
|
label: 'Dialog',
|
|
tooltipMessage:
|
|
'Use showDialog with Dialog.fullscreen, AlertDialog, or SimpleDialog',
|
|
child: Wrap(
|
|
alignment: WrapAlignment.spaceBetween,
|
|
children: [
|
|
TextButton(
|
|
child: const Text(
|
|
'Show dialog',
|
|
style: TextStyle(fontWeight: FontWeight.bold),
|
|
),
|
|
onPressed: () => openDialog(context),
|
|
),
|
|
TextButton(
|
|
child: const Text(
|
|
'Show full-screen dialog',
|
|
style: TextStyle(fontWeight: FontWeight.bold),
|
|
),
|
|
onPressed: () => openFullscreenDialog(context),
|
|
),
|
|
],
|
|
),
|
|
);
|
|
}
|
|
}
|
|
|
|
class Dividers extends StatelessWidget {
|
|
const Dividers({super.key});
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
return ComponentDecoration(
|
|
label: 'Dividers',
|
|
tooltipMessage: 'Use Divider or VerticalDivider',
|
|
child: Column(
|
|
children: const <Widget>[
|
|
Divider(key: Key('divider')),
|
|
],
|
|
),
|
|
);
|
|
}
|
|
}
|
|
|
|
class Switches extends StatelessWidget {
|
|
const Switches({super.key});
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
return ComponentDecoration(
|
|
label: 'Switches',
|
|
tooltipMessage: 'Use SwitchListTile or Switch',
|
|
child: Column(
|
|
children: const <Widget>[
|
|
SwitchRow(isEnabled: true),
|
|
SwitchRow(isEnabled: false),
|
|
],
|
|
),
|
|
);
|
|
}
|
|
}
|
|
|
|
class SwitchRow extends StatefulWidget {
|
|
const SwitchRow({super.key, required this.isEnabled});
|
|
|
|
final bool isEnabled;
|
|
|
|
@override
|
|
State<SwitchRow> createState() => _SwitchRowState();
|
|
}
|
|
|
|
class _SwitchRowState extends State<SwitchRow> {
|
|
bool value0 = false;
|
|
bool value1 = true;
|
|
|
|
final MaterialStateProperty<Icon?> thumbIcon =
|
|
MaterialStateProperty.resolveWith<Icon?>((states) {
|
|
if (states.contains(MaterialState.selected)) {
|
|
return const Icon(Icons.check);
|
|
}
|
|
return const Icon(Icons.close);
|
|
});
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
return Row(
|
|
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
|
|
children: <Widget>[
|
|
// TODO: use SwitchListTile when thumbIcon is available https://github.com/flutter/flutter/issues/118616
|
|
Switch(
|
|
value: value0,
|
|
onChanged: widget.isEnabled
|
|
? (value) {
|
|
setState(() {
|
|
value0 = value;
|
|
});
|
|
}
|
|
: null,
|
|
),
|
|
Switch(
|
|
thumbIcon: thumbIcon,
|
|
value: value1,
|
|
onChanged: widget.isEnabled
|
|
? (value) {
|
|
setState(() {
|
|
value1 = value;
|
|
});
|
|
}
|
|
: null,
|
|
),
|
|
],
|
|
);
|
|
}
|
|
}
|
|
|
|
class Checkboxes extends StatefulWidget {
|
|
const Checkboxes({super.key});
|
|
|
|
@override
|
|
State<Checkboxes> createState() => _CheckboxesState();
|
|
}
|
|
|
|
class _CheckboxesState extends State<Checkboxes> {
|
|
bool? isChecked0 = true;
|
|
bool? isChecked1;
|
|
bool? isChecked2 = false;
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
return ComponentDecoration(
|
|
label: 'Checkboxes',
|
|
tooltipMessage: 'Use CheckboxListTile or Checkbox',
|
|
child: Column(
|
|
children: <Widget>[
|
|
CheckboxListTile(
|
|
tristate: true,
|
|
value: isChecked0,
|
|
title: const Text('Option 1'),
|
|
onChanged: (value) {
|
|
setState(() {
|
|
isChecked0 = value;
|
|
});
|
|
},
|
|
),
|
|
CheckboxListTile(
|
|
tristate: true,
|
|
value: isChecked1,
|
|
title: const Text('Option 2'),
|
|
onChanged: (value) {
|
|
setState(() {
|
|
isChecked1 = value;
|
|
});
|
|
},
|
|
),
|
|
CheckboxListTile(
|
|
tristate: true,
|
|
value: isChecked2,
|
|
title: const Text('Option 3'),
|
|
// TODO: showcase error state https://github.com/flutter/flutter/issues/118616
|
|
onChanged: (value) {
|
|
setState(() {
|
|
isChecked2 = value;
|
|
});
|
|
},
|
|
),
|
|
const CheckboxListTile(
|
|
tristate: true,
|
|
title: Text('Option 4'),
|
|
value: true,
|
|
onChanged: null,
|
|
),
|
|
],
|
|
),
|
|
);
|
|
}
|
|
}
|
|
|
|
enum Value { first, second }
|
|
|
|
class Radios extends StatefulWidget {
|
|
const Radios({super.key});
|
|
|
|
@override
|
|
State<Radios> createState() => _RadiosState();
|
|
}
|
|
|
|
enum Options { option1, option2, option3 }
|
|
|
|
class _RadiosState extends State<Radios> {
|
|
Options? _selectedOption = Options.option1;
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
return ComponentDecoration(
|
|
label: 'Radio buttons',
|
|
tooltipMessage: 'Use RadioListTile<T> or Radio<T>',
|
|
child: Column(
|
|
children: <Widget>[
|
|
RadioListTile<Options>(
|
|
title: const Text('Option 1'),
|
|
value: Options.option1,
|
|
groupValue: _selectedOption,
|
|
onChanged: (value) {
|
|
setState(() {
|
|
_selectedOption = value;
|
|
});
|
|
},
|
|
),
|
|
RadioListTile<Options>(
|
|
title: const Text('Option 2'),
|
|
value: Options.option2,
|
|
groupValue: _selectedOption,
|
|
onChanged: (value) {
|
|
setState(() {
|
|
_selectedOption = value;
|
|
});
|
|
},
|
|
),
|
|
RadioListTile<Options>(
|
|
title: const Text('Option 3'),
|
|
value: Options.option3,
|
|
groupValue: _selectedOption,
|
|
onChanged: null,
|
|
),
|
|
],
|
|
),
|
|
);
|
|
}
|
|
}
|
|
|
|
class ProgressIndicators extends StatefulWidget {
|
|
const ProgressIndicators({super.key});
|
|
|
|
@override
|
|
State<ProgressIndicators> createState() => _ProgressIndicatorsState();
|
|
}
|
|
|
|
class _ProgressIndicatorsState extends State<ProgressIndicators> {
|
|
bool playProgressIndicator = false;
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
final double? progressValue = playProgressIndicator ? null : 0.7;
|
|
|
|
return ComponentDecoration(
|
|
label: 'Progress indicators',
|
|
tooltipMessage:
|
|
'Use CircularProgressIndicator or LinearProgressIndicator',
|
|
child: Column(
|
|
children: <Widget>[
|
|
Row(
|
|
children: [
|
|
IconButton(
|
|
isSelected: playProgressIndicator,
|
|
selectedIcon: const Icon(Icons.pause),
|
|
icon: const Icon(Icons.play_arrow),
|
|
onPressed: () {
|
|
setState(() {
|
|
playProgressIndicator = !playProgressIndicator;
|
|
});
|
|
},
|
|
),
|
|
Expanded(
|
|
child: Row(
|
|
children: <Widget>[
|
|
rowDivider,
|
|
CircularProgressIndicator(
|
|
value: progressValue,
|
|
),
|
|
rowDivider,
|
|
Expanded(
|
|
child: LinearProgressIndicator(
|
|
value: progressValue,
|
|
),
|
|
),
|
|
rowDivider,
|
|
],
|
|
),
|
|
),
|
|
],
|
|
),
|
|
],
|
|
),
|
|
);
|
|
}
|
|
}
|
|
|
|
const List<NavigationDestination> appBarDestinations = [
|
|
NavigationDestination(
|
|
tooltip: '',
|
|
icon: Icon(Icons.widgets_outlined),
|
|
label: 'Components',
|
|
selectedIcon: Icon(Icons.widgets),
|
|
),
|
|
NavigationDestination(
|
|
tooltip: '',
|
|
icon: Icon(Icons.format_paint_outlined),
|
|
label: 'Color',
|
|
selectedIcon: Icon(Icons.format_paint),
|
|
),
|
|
NavigationDestination(
|
|
tooltip: '',
|
|
icon: Icon(Icons.text_snippet_outlined),
|
|
label: 'Typography',
|
|
selectedIcon: Icon(Icons.text_snippet),
|
|
),
|
|
NavigationDestination(
|
|
tooltip: '',
|
|
icon: Icon(Icons.invert_colors_on_outlined),
|
|
label: 'Elevation',
|
|
selectedIcon: Icon(Icons.opacity),
|
|
)
|
|
];
|
|
|
|
const List<Widget> exampleBarDestinations = [
|
|
NavigationDestination(
|
|
tooltip: '',
|
|
icon: Icon(Icons.explore_outlined),
|
|
label: 'Explore',
|
|
selectedIcon: Icon(Icons.explore),
|
|
),
|
|
NavigationDestination(
|
|
tooltip: '',
|
|
icon: Icon(Icons.pets_outlined),
|
|
label: 'Pets',
|
|
selectedIcon: Icon(Icons.pets),
|
|
),
|
|
NavigationDestination(
|
|
tooltip: '',
|
|
icon: Icon(Icons.account_box_outlined),
|
|
label: 'Account',
|
|
selectedIcon: Icon(Icons.account_box),
|
|
)
|
|
];
|
|
|
|
List<Widget> barWithBadgeDestinations = [
|
|
NavigationDestination(
|
|
tooltip: '',
|
|
icon: Badge.count(count: 1000, child: const Icon(Icons.mail_outlined)),
|
|
label: 'Mail',
|
|
selectedIcon: Badge.count(count: 1000, child: const Icon(Icons.mail)),
|
|
),
|
|
const NavigationDestination(
|
|
tooltip: '',
|
|
icon: Badge(label: Text('10'), child: Icon(Icons.chat_bubble_outline)),
|
|
label: 'Chat',
|
|
selectedIcon: Badge(label: Text('10'), child: Icon(Icons.chat_bubble)),
|
|
),
|
|
const NavigationDestination(
|
|
tooltip: '',
|
|
icon: Badge(child: Icon(Icons.group_outlined)),
|
|
label: 'Rooms',
|
|
selectedIcon: Badge(child: Icon(Icons.group_rounded)),
|
|
),
|
|
NavigationDestination(
|
|
tooltip: '',
|
|
icon: Badge.count(count: 3, child: const Icon(Icons.videocam_outlined)),
|
|
label: 'Meet',
|
|
selectedIcon: Badge.count(count: 3, child: const Icon(Icons.videocam)),
|
|
)
|
|
];
|
|
|
|
class NavigationBars extends StatefulWidget {
|
|
const NavigationBars({
|
|
super.key,
|
|
this.onSelectItem,
|
|
required this.selectedIndex,
|
|
required this.isExampleBar,
|
|
this.isBadgeExample = false,
|
|
});
|
|
|
|
final void Function(int)? onSelectItem;
|
|
final int selectedIndex;
|
|
final bool isExampleBar;
|
|
final bool isBadgeExample;
|
|
|
|
@override
|
|
State<NavigationBars> createState() => _NavigationBarsState();
|
|
}
|
|
|
|
class _NavigationBarsState extends State<NavigationBars> {
|
|
late int selectedIndex;
|
|
|
|
@override
|
|
void initState() {
|
|
super.initState();
|
|
selectedIndex = widget.selectedIndex;
|
|
}
|
|
|
|
@override
|
|
void didUpdateWidget(covariant NavigationBars oldWidget) {
|
|
super.didUpdateWidget(oldWidget);
|
|
if (widget.selectedIndex != oldWidget.selectedIndex) {
|
|
selectedIndex = widget.selectedIndex;
|
|
}
|
|
}
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
// App NavigationBar should get first focus.
|
|
Widget navigationBar = Focus(
|
|
autofocus: !(widget.isExampleBar || widget.isBadgeExample),
|
|
child: NavigationBar(
|
|
selectedIndex: selectedIndex,
|
|
onDestinationSelected: (index) {
|
|
setState(() {
|
|
selectedIndex = index;
|
|
});
|
|
if (!widget.isExampleBar) widget.onSelectItem!(index);
|
|
},
|
|
destinations: widget.isExampleBar && widget.isBadgeExample
|
|
? barWithBadgeDestinations
|
|
: widget.isExampleBar
|
|
? exampleBarDestinations
|
|
: appBarDestinations,
|
|
),
|
|
);
|
|
|
|
if (widget.isExampleBar && widget.isBadgeExample) {
|
|
navigationBar = ComponentDecoration(
|
|
label: 'Badges',
|
|
tooltipMessage: 'Use Badge or Badge.count',
|
|
child: navigationBar);
|
|
} else if (widget.isExampleBar) {
|
|
navigationBar = ComponentDecoration(
|
|
label: 'Navigation bar',
|
|
tooltipMessage: 'Use NavigationBar',
|
|
child: navigationBar);
|
|
}
|
|
|
|
return navigationBar;
|
|
}
|
|
}
|
|
|
|
class IconToggleButtons extends StatefulWidget {
|
|
const IconToggleButtons({super.key});
|
|
|
|
@override
|
|
State<IconToggleButtons> createState() => _IconToggleButtonsState();
|
|
}
|
|
|
|
class _IconToggleButtonsState extends State<IconToggleButtons> {
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
return ComponentDecoration(
|
|
label: 'Icon buttons',
|
|
tooltipMessage: 'Use IconButton',
|
|
child: Row(
|
|
mainAxisAlignment: MainAxisAlignment.spaceAround,
|
|
children: <Widget>[
|
|
Column(
|
|
// Standard IconButton
|
|
children: const <Widget>[
|
|
IconToggleButton(
|
|
isEnabled: true,
|
|
tooltip: 'Standard',
|
|
),
|
|
colDivider,
|
|
IconToggleButton(
|
|
isEnabled: false,
|
|
tooltip: 'Standard (disabled)',
|
|
),
|
|
],
|
|
),
|
|
Column(
|
|
children: const <Widget>[
|
|
// Filled IconButton
|
|
IconToggleButton(
|
|
isEnabled: true,
|
|
tooltip: 'Filled',
|
|
getDefaultStyle: enabledFilledButtonStyle,
|
|
),
|
|
colDivider,
|
|
IconToggleButton(
|
|
isEnabled: false,
|
|
tooltip: 'Filled (disabled)',
|
|
getDefaultStyle: disabledFilledButtonStyle,
|
|
),
|
|
],
|
|
),
|
|
Column(
|
|
children: const <Widget>[
|
|
// Filled Tonal IconButton
|
|
IconToggleButton(
|
|
isEnabled: true,
|
|
tooltip: 'Filled tonal',
|
|
getDefaultStyle: enabledFilledTonalButtonStyle,
|
|
),
|
|
colDivider,
|
|
IconToggleButton(
|
|
isEnabled: false,
|
|
tooltip: 'Filled tonal (disabled)',
|
|
getDefaultStyle: disabledFilledTonalButtonStyle,
|
|
),
|
|
],
|
|
),
|
|
Column(
|
|
children: const <Widget>[
|
|
// Outlined IconButton
|
|
IconToggleButton(
|
|
isEnabled: true,
|
|
tooltip: 'Outlined',
|
|
getDefaultStyle: enabledOutlinedButtonStyle,
|
|
),
|
|
colDivider,
|
|
IconToggleButton(
|
|
isEnabled: false,
|
|
tooltip: 'Outlined (disabled)',
|
|
getDefaultStyle: disabledOutlinedButtonStyle,
|
|
),
|
|
],
|
|
),
|
|
],
|
|
),
|
|
);
|
|
}
|
|
}
|
|
|
|
class IconToggleButton extends StatefulWidget {
|
|
const IconToggleButton({
|
|
required this.isEnabled,
|
|
required this.tooltip,
|
|
this.getDefaultStyle,
|
|
super.key,
|
|
});
|
|
|
|
final bool isEnabled;
|
|
final String tooltip;
|
|
final ButtonStyle? Function(bool, ColorScheme)? getDefaultStyle;
|
|
|
|
@override
|
|
State<IconToggleButton> createState() => _IconToggleButtonState();
|
|
}
|
|
|
|
class _IconToggleButtonState extends State<IconToggleButton> {
|
|
bool selected = false;
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
final ColorScheme colors = Theme.of(context).colorScheme;
|
|
final VoidCallback? onPressed = widget.isEnabled
|
|
? () {
|
|
setState(() {
|
|
selected = !selected;
|
|
});
|
|
}
|
|
: null;
|
|
ButtonStyle? style = widget.getDefaultStyle?.call(selected, colors);
|
|
|
|
return IconButton(
|
|
visualDensity: VisualDensity.standard,
|
|
isSelected: selected,
|
|
tooltip: widget.tooltip,
|
|
icon: const Icon(Icons.settings_outlined),
|
|
selectedIcon: const Icon(Icons.settings),
|
|
onPressed: onPressed,
|
|
style: style,
|
|
);
|
|
}
|
|
}
|
|
|
|
ButtonStyle enabledFilledButtonStyle(bool selected, ColorScheme colors) {
|
|
return IconButton.styleFrom(
|
|
foregroundColor: selected ? colors.onPrimary : colors.primary,
|
|
backgroundColor: selected ? colors.primary : colors.surfaceVariant,
|
|
disabledForegroundColor: colors.onSurface.withOpacity(0.38),
|
|
disabledBackgroundColor: colors.onSurface.withOpacity(0.12),
|
|
hoverColor: selected
|
|
? colors.onPrimary.withOpacity(0.08)
|
|
: colors.primary.withOpacity(0.08),
|
|
focusColor: selected
|
|
? colors.onPrimary.withOpacity(0.12)
|
|
: colors.primary.withOpacity(0.12),
|
|
highlightColor: selected
|
|
? colors.onPrimary.withOpacity(0.12)
|
|
: colors.primary.withOpacity(0.12),
|
|
);
|
|
}
|
|
|
|
ButtonStyle disabledFilledButtonStyle(bool selected, ColorScheme colors) {
|
|
return IconButton.styleFrom(
|
|
disabledForegroundColor: colors.onSurface.withOpacity(0.38),
|
|
disabledBackgroundColor: colors.onSurface.withOpacity(0.12),
|
|
);
|
|
}
|
|
|
|
ButtonStyle enabledFilledTonalButtonStyle(bool selected, ColorScheme colors) {
|
|
return IconButton.styleFrom(
|
|
foregroundColor:
|
|
selected ? colors.onSecondaryContainer : colors.onSurfaceVariant,
|
|
backgroundColor:
|
|
selected ? colors.secondaryContainer : colors.surfaceVariant,
|
|
hoverColor: selected
|
|
? colors.onSecondaryContainer.withOpacity(0.08)
|
|
: colors.onSurfaceVariant.withOpacity(0.08),
|
|
focusColor: selected
|
|
? colors.onSecondaryContainer.withOpacity(0.12)
|
|
: colors.onSurfaceVariant.withOpacity(0.12),
|
|
highlightColor: selected
|
|
? colors.onSecondaryContainer.withOpacity(0.12)
|
|
: colors.onSurfaceVariant.withOpacity(0.12),
|
|
);
|
|
}
|
|
|
|
ButtonStyle disabledFilledTonalButtonStyle(bool selected, ColorScheme colors) {
|
|
return IconButton.styleFrom(
|
|
disabledForegroundColor: colors.onSurface.withOpacity(0.38),
|
|
disabledBackgroundColor: colors.onSurface.withOpacity(0.12),
|
|
);
|
|
}
|
|
|
|
ButtonStyle enabledOutlinedButtonStyle(bool selected, ColorScheme colors) {
|
|
return IconButton.styleFrom(
|
|
backgroundColor: selected ? colors.inverseSurface : null,
|
|
hoverColor: selected
|
|
? colors.onInverseSurface.withOpacity(0.08)
|
|
: colors.onSurfaceVariant.withOpacity(0.08),
|
|
focusColor: selected
|
|
? colors.onInverseSurface.withOpacity(0.12)
|
|
: colors.onSurfaceVariant.withOpacity(0.12),
|
|
highlightColor: selected
|
|
? colors.onInverseSurface.withOpacity(0.12)
|
|
: colors.onSurface.withOpacity(0.12),
|
|
side: BorderSide(color: colors.outline),
|
|
).copyWith(
|
|
foregroundColor: MaterialStateProperty.resolveWith((states) {
|
|
if (states.contains(MaterialState.selected)) {
|
|
return colors.onInverseSurface;
|
|
}
|
|
if (states.contains(MaterialState.pressed)) {
|
|
return colors.onSurface;
|
|
}
|
|
return null;
|
|
}),
|
|
);
|
|
}
|
|
|
|
ButtonStyle disabledOutlinedButtonStyle(bool selected, ColorScheme colors) {
|
|
return IconButton.styleFrom(
|
|
disabledForegroundColor: colors.onSurface.withOpacity(0.38),
|
|
disabledBackgroundColor:
|
|
selected ? colors.onSurface.withOpacity(0.12) : null,
|
|
side: selected ? null : BorderSide(color: colors.outline.withOpacity(0.12)),
|
|
);
|
|
}
|
|
|
|
class Chips extends StatefulWidget {
|
|
const Chips({super.key});
|
|
|
|
@override
|
|
State<Chips> createState() => _ChipsState();
|
|
}
|
|
|
|
class _ChipsState extends State<Chips> {
|
|
bool isFiltered = true;
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
return ComponentDecoration(
|
|
label: 'Chips',
|
|
tooltipMessage:
|
|
'Use ActionChip, FilterChip, or InputChip. \nActionChip can also be used for suggestion chip',
|
|
child: Column(
|
|
crossAxisAlignment: CrossAxisAlignment.center,
|
|
children: <Widget>[
|
|
Wrap(
|
|
spacing: smallSpacing,
|
|
runSpacing: smallSpacing,
|
|
children: <Widget>[
|
|
ActionChip(
|
|
label: const Text('Assist'),
|
|
avatar: const Icon(Icons.event),
|
|
onPressed: () {},
|
|
),
|
|
FilterChip(
|
|
label: const Text('Filter'),
|
|
selected: isFiltered,
|
|
onSelected: (selected) {
|
|
setState(() => isFiltered = selected);
|
|
},
|
|
),
|
|
InputChip(
|
|
label: const Text('Input'),
|
|
onPressed: () {},
|
|
onDeleted: () {},
|
|
),
|
|
ActionChip(
|
|
label: const Text('Suggestion'),
|
|
onPressed: () {},
|
|
),
|
|
],
|
|
),
|
|
colDivider,
|
|
Wrap(
|
|
spacing: smallSpacing,
|
|
runSpacing: smallSpacing,
|
|
children: <Widget>[
|
|
const ActionChip(
|
|
label: Text('Assist'),
|
|
avatar: Icon(Icons.event),
|
|
),
|
|
FilterChip(
|
|
label: const Text('Filter'),
|
|
selected: isFiltered,
|
|
onSelected: null,
|
|
),
|
|
InputChip(
|
|
label: const Text('Input'),
|
|
onDeleted: () {},
|
|
isEnabled: false,
|
|
),
|
|
const ActionChip(
|
|
label: Text('Suggestion'),
|
|
),
|
|
],
|
|
),
|
|
],
|
|
),
|
|
);
|
|
}
|
|
}
|
|
|
|
class SegmentedButtons extends StatelessWidget {
|
|
const SegmentedButtons({super.key});
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
return ComponentDecoration(
|
|
label: 'Segmented buttons',
|
|
tooltipMessage: 'Use SegmentedButton<T>',
|
|
child: Column(
|
|
children: const <Widget>[
|
|
SingleChoice(),
|
|
colDivider,
|
|
MultipleChoice(),
|
|
],
|
|
),
|
|
);
|
|
}
|
|
}
|
|
|
|
enum Calendar { day, week, month, year }
|
|
|
|
class SingleChoice extends StatefulWidget {
|
|
const SingleChoice({super.key});
|
|
|
|
@override
|
|
State<SingleChoice> createState() => _SingleChoiceState();
|
|
}
|
|
|
|
class _SingleChoiceState extends State<SingleChoice> {
|
|
Calendar calendarView = Calendar.day;
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
return SegmentedButton<Calendar>(
|
|
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: (newSelection) {
|
|
setState(() {
|
|
// By default there is only a single segment that can be
|
|
// selected at one time, so its value is always the first
|
|
// item in the selected set.
|
|
calendarView = newSelection.first;
|
|
});
|
|
},
|
|
);
|
|
}
|
|
}
|
|
|
|
enum Sizes { extraSmall, small, medium, large, extraLarge }
|
|
|
|
class MultipleChoice extends StatefulWidget {
|
|
const MultipleChoice({super.key});
|
|
|
|
@override
|
|
State<MultipleChoice> createState() => _MultipleChoiceState();
|
|
}
|
|
|
|
class _MultipleChoiceState extends State<MultipleChoice> {
|
|
Set<Sizes> selection = <Sizes>{Sizes.large, Sizes.extraLarge};
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
return SegmentedButton<Sizes>(
|
|
segments: const <ButtonSegment<Sizes>>[
|
|
ButtonSegment<Sizes>(value: Sizes.extraSmall, label: Text('XS')),
|
|
ButtonSegment<Sizes>(value: Sizes.small, label: Text('S')),
|
|
ButtonSegment<Sizes>(value: Sizes.medium, label: Text('M')),
|
|
ButtonSegment<Sizes>(
|
|
value: Sizes.large,
|
|
label: Text('L'),
|
|
),
|
|
ButtonSegment<Sizes>(value: Sizes.extraLarge, label: Text('XL')),
|
|
],
|
|
selected: selection,
|
|
onSelectionChanged: (newSelection) {
|
|
setState(() {
|
|
selection = newSelection;
|
|
});
|
|
},
|
|
multiSelectionEnabled: true,
|
|
);
|
|
}
|
|
}
|
|
|
|
class SnackBarSection extends StatelessWidget {
|
|
const SnackBarSection({super.key});
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
return ComponentDecoration(
|
|
label: 'Snackbar',
|
|
tooltipMessage:
|
|
'Use ScaffoldMessenger.of(context).showSnackBar with SnackBar',
|
|
child: TextButton(
|
|
onPressed: () {
|
|
final snackBar = SnackBar(
|
|
behavior: SnackBarBehavior.floating,
|
|
width: 400.0,
|
|
content: const Text('This is a snackbar'),
|
|
action: SnackBarAction(
|
|
label: 'Close',
|
|
onPressed: () {},
|
|
),
|
|
);
|
|
|
|
ScaffoldMessenger.of(context).hideCurrentSnackBar();
|
|
ScaffoldMessenger.of(context).showSnackBar(snackBar);
|
|
},
|
|
child: const Text(
|
|
'Show snackbar',
|
|
style: TextStyle(fontWeight: FontWeight.bold),
|
|
),
|
|
),
|
|
);
|
|
}
|
|
}
|
|
|
|
class BottomSheetSection extends StatefulWidget {
|
|
const BottomSheetSection({super.key});
|
|
|
|
@override
|
|
State<BottomSheetSection> createState() => _BottomSheetSectionState();
|
|
}
|
|
|
|
class _BottomSheetSectionState extends State<BottomSheetSection> {
|
|
bool isNonModalBottomSheetOpen = false;
|
|
PersistentBottomSheetController<void>? _nonModalBottomSheetController;
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
List<Widget> buttonList = <Widget>[
|
|
IconButton(onPressed: () {}, icon: const Icon(Icons.share_outlined)),
|
|
IconButton(onPressed: () {}, icon: const Icon(Icons.add)),
|
|
IconButton(onPressed: () {}, icon: const Icon(Icons.delete_outline)),
|
|
IconButton(onPressed: () {}, icon: const Icon(Icons.archive_outlined)),
|
|
IconButton(onPressed: () {}, icon: const Icon(Icons.settings_outlined)),
|
|
IconButton(onPressed: () {}, icon: const Icon(Icons.favorite_border)),
|
|
];
|
|
List<Text> labelList = const <Text>[
|
|
Text('Share'),
|
|
Text('Add to'),
|
|
Text('Trash'),
|
|
Text('Archive'),
|
|
Text('Settings'),
|
|
Text('Favorite')
|
|
];
|
|
|
|
buttonList = List.generate(
|
|
buttonList.length,
|
|
(index) => Padding(
|
|
padding: const EdgeInsets.fromLTRB(20.0, 30.0, 20.0, 20.0),
|
|
child: Column(
|
|
mainAxisAlignment: MainAxisAlignment.start,
|
|
children: [
|
|
buttonList[index],
|
|
labelList[index],
|
|
],
|
|
),
|
|
));
|
|
|
|
return ComponentDecoration(
|
|
label: 'Bottom sheet',
|
|
tooltipMessage: 'Use showModalBottomSheet<T> or showBottomSheet<T>',
|
|
child: Wrap(
|
|
alignment: WrapAlignment.spaceEvenly,
|
|
children: [
|
|
TextButton(
|
|
child: const Text(
|
|
'Show modal bottom sheet',
|
|
style: TextStyle(fontWeight: FontWeight.bold),
|
|
),
|
|
onPressed: () {
|
|
showModalBottomSheet<void>(
|
|
context: context,
|
|
// TODO: Remove when this is in the framework https://github.com/flutter/flutter/issues/118619
|
|
constraints: const BoxConstraints(maxWidth: 640),
|
|
builder: (context) {
|
|
return SizedBox(
|
|
height: 150,
|
|
child: Padding(
|
|
padding: const EdgeInsets.symmetric(horizontal: 32.0),
|
|
child: ListView(
|
|
shrinkWrap: true,
|
|
scrollDirection: Axis.horizontal,
|
|
children: buttonList,
|
|
),
|
|
),
|
|
);
|
|
},
|
|
);
|
|
},
|
|
),
|
|
TextButton(
|
|
child: Text(
|
|
isNonModalBottomSheetOpen
|
|
? 'Hide bottom sheet'
|
|
: 'Show bottom sheet',
|
|
style: const TextStyle(fontWeight: FontWeight.bold),
|
|
),
|
|
onPressed: () {
|
|
if (isNonModalBottomSheetOpen) {
|
|
_nonModalBottomSheetController?.close();
|
|
setState(() {
|
|
isNonModalBottomSheetOpen = false;
|
|
});
|
|
return;
|
|
} else {
|
|
setState(() {
|
|
isNonModalBottomSheetOpen = true;
|
|
});
|
|
}
|
|
|
|
_nonModalBottomSheetController = showBottomSheet<void>(
|
|
elevation: 8.0,
|
|
context: context,
|
|
// TODO: Remove when this is in the framework https://github.com/flutter/flutter/issues/118619
|
|
constraints: const BoxConstraints(maxWidth: 640),
|
|
builder: (context) {
|
|
return SizedBox(
|
|
height: 150,
|
|
child: Padding(
|
|
padding: const EdgeInsets.symmetric(horizontal: 32.0),
|
|
child: ListView(
|
|
shrinkWrap: true,
|
|
scrollDirection: Axis.horizontal,
|
|
children: buttonList,
|
|
),
|
|
),
|
|
);
|
|
},
|
|
);
|
|
},
|
|
),
|
|
],
|
|
),
|
|
);
|
|
}
|
|
}
|
|
|
|
class BottomAppBars extends StatelessWidget {
|
|
const BottomAppBars({super.key});
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
return ComponentDecoration(
|
|
label: 'Bottom app bar',
|
|
tooltipMessage: 'Use BottomAppBar',
|
|
child: Column(
|
|
children: [
|
|
SizedBox(
|
|
height: 80,
|
|
child: Scaffold(
|
|
floatingActionButton: FloatingActionButton(
|
|
onPressed: () {},
|
|
elevation: 0.0,
|
|
child: const Icon(Icons.add),
|
|
),
|
|
floatingActionButtonLocation:
|
|
FloatingActionButtonLocation.endContained,
|
|
bottomNavigationBar: BottomAppBar(
|
|
child: Row(
|
|
children: <Widget>[
|
|
const IconButtonAnchorExample(),
|
|
IconButton(
|
|
tooltip: 'Search',
|
|
icon: const Icon(Icons.search),
|
|
onPressed: () {},
|
|
),
|
|
IconButton(
|
|
tooltip: 'Favorite',
|
|
icon: const Icon(Icons.favorite),
|
|
onPressed: () {},
|
|
),
|
|
],
|
|
),
|
|
),
|
|
),
|
|
),
|
|
],
|
|
),
|
|
);
|
|
}
|
|
}
|
|
|
|
class IconButtonAnchorExample extends StatelessWidget {
|
|
const IconButtonAnchorExample({super.key});
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
return MenuAnchor(
|
|
builder: (context, controller, child) {
|
|
return IconButton(
|
|
onPressed: () {
|
|
if (controller.isOpen) {
|
|
controller.close();
|
|
} else {
|
|
controller.open();
|
|
}
|
|
},
|
|
icon: const Icon(Icons.more_vert),
|
|
);
|
|
},
|
|
menuChildren: [
|
|
MenuItemButton(
|
|
child: const Text('Menu 1'),
|
|
onPressed: () {},
|
|
),
|
|
MenuItemButton(
|
|
child: const Text('Menu 2'),
|
|
onPressed: () {},
|
|
),
|
|
SubmenuButton(
|
|
menuChildren: <Widget>[
|
|
MenuItemButton(
|
|
onPressed: () {},
|
|
child: const Text('Menu 3.1'),
|
|
),
|
|
MenuItemButton(
|
|
onPressed: () {},
|
|
child: const Text('Menu 3.2'),
|
|
),
|
|
MenuItemButton(
|
|
onPressed: () {},
|
|
child: const Text('Menu 3.3'),
|
|
),
|
|
],
|
|
child: const Text('Menu 3'),
|
|
),
|
|
],
|
|
);
|
|
}
|
|
}
|
|
|
|
class ButtonAnchorExample extends StatelessWidget {
|
|
const ButtonAnchorExample({super.key});
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
return MenuAnchor(
|
|
builder: (context, controller, child) {
|
|
return FilledButton.tonal(
|
|
onPressed: () {
|
|
if (controller.isOpen) {
|
|
controller.close();
|
|
} else {
|
|
controller.open();
|
|
}
|
|
},
|
|
child: const Text('Show menu'),
|
|
);
|
|
},
|
|
menuChildren: [
|
|
MenuItemButton(
|
|
leadingIcon: const Icon(Icons.people_alt_outlined),
|
|
child: const Text('Item 1'),
|
|
onPressed: () {},
|
|
),
|
|
MenuItemButton(
|
|
leadingIcon: const Icon(Icons.remove_red_eye_outlined),
|
|
child: const Text('Item 2'),
|
|
onPressed: () {},
|
|
),
|
|
MenuItemButton(
|
|
leadingIcon: const Icon(Icons.refresh),
|
|
onPressed: () {},
|
|
child: const Text('Item 3'),
|
|
),
|
|
],
|
|
);
|
|
}
|
|
}
|
|
|
|
class NavigationDrawers extends StatelessWidget {
|
|
const NavigationDrawers({super.key, required this.scaffoldKey});
|
|
final GlobalKey<ScaffoldState> scaffoldKey;
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
return ComponentDecoration(
|
|
label: 'Navigation drawer',
|
|
tooltipMessage:
|
|
'Use NavigationDrawer. For modal navigation drawers, see Scaffold.endDrawer',
|
|
child: Column(
|
|
children: [
|
|
const SizedBox(height: 520, child: NavigationDrawerSection()),
|
|
colDivider,
|
|
colDivider,
|
|
TextButton(
|
|
child: const Text('Show modal navigation drawer',
|
|
style: TextStyle(fontWeight: FontWeight.bold)),
|
|
onPressed: () {
|
|
scaffoldKey.currentState!.openEndDrawer();
|
|
},
|
|
),
|
|
],
|
|
),
|
|
);
|
|
}
|
|
}
|
|
|
|
class NavigationDrawerSection extends StatefulWidget {
|
|
const NavigationDrawerSection({super.key});
|
|
|
|
@override
|
|
State<NavigationDrawerSection> createState() =>
|
|
_NavigationDrawerSectionState();
|
|
}
|
|
|
|
class _NavigationDrawerSectionState extends State<NavigationDrawerSection> {
|
|
int navDrawerIndex = 0;
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
return NavigationDrawer(
|
|
onDestinationSelected: (selectedIndex) {
|
|
setState(() {
|
|
navDrawerIndex = selectedIndex;
|
|
});
|
|
},
|
|
selectedIndex: navDrawerIndex,
|
|
children: <Widget>[
|
|
Padding(
|
|
padding: const EdgeInsets.fromLTRB(28, 16, 16, 10),
|
|
child: Text(
|
|
'Mail',
|
|
style: Theme.of(context).textTheme.titleSmall,
|
|
),
|
|
),
|
|
...destinations.map((destination) {
|
|
return NavigationDrawerDestination(
|
|
label: Text(destination.label),
|
|
icon: destination.icon,
|
|
selectedIcon: destination.selectedIcon,
|
|
);
|
|
}),
|
|
const Divider(indent: 28, endIndent: 28),
|
|
Padding(
|
|
padding: const EdgeInsets.fromLTRB(28, 16, 16, 10),
|
|
child: Text(
|
|
'Labels',
|
|
style: Theme.of(context).textTheme.titleSmall,
|
|
),
|
|
),
|
|
...labelDestinations.map((destination) {
|
|
return NavigationDrawerDestination(
|
|
label: Text(destination.label),
|
|
icon: destination.icon,
|
|
selectedIcon: destination.selectedIcon,
|
|
);
|
|
}),
|
|
],
|
|
);
|
|
}
|
|
}
|
|
|
|
class ExampleDestination {
|
|
const ExampleDestination(this.label, this.icon, this.selectedIcon);
|
|
|
|
final String label;
|
|
final Widget icon;
|
|
final Widget selectedIcon;
|
|
}
|
|
|
|
const List<ExampleDestination> destinations = <ExampleDestination>[
|
|
ExampleDestination('Inbox', Icon(Icons.inbox_outlined), Icon(Icons.inbox)),
|
|
ExampleDestination('Outbox', Icon(Icons.send_outlined), Icon(Icons.send)),
|
|
ExampleDestination(
|
|
'Favorites', Icon(Icons.favorite_outline), Icon(Icons.favorite)),
|
|
ExampleDestination('Trash', Icon(Icons.delete_outline), Icon(Icons.delete)),
|
|
];
|
|
|
|
const List<ExampleDestination> labelDestinations = <ExampleDestination>[
|
|
ExampleDestination(
|
|
'Family', Icon(Icons.bookmark_border), Icon(Icons.bookmark)),
|
|
ExampleDestination(
|
|
'School', Icon(Icons.bookmark_border), Icon(Icons.bookmark)),
|
|
ExampleDestination('Work', Icon(Icons.bookmark_border), Icon(Icons.bookmark)),
|
|
];
|
|
|
|
class NavigationRails extends StatelessWidget {
|
|
const NavigationRails({super.key});
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
return const ComponentDecoration(
|
|
label: 'Navigation rail',
|
|
tooltipMessage: 'Use NavigationRail',
|
|
child: IntrinsicWidth(
|
|
child: SizedBox(height: 420, child: NavigationRailSection())),
|
|
);
|
|
}
|
|
}
|
|
|
|
class NavigationRailSection extends StatefulWidget {
|
|
const NavigationRailSection({super.key});
|
|
|
|
@override
|
|
State<NavigationRailSection> createState() => _NavigationRailSectionState();
|
|
}
|
|
|
|
class _NavigationRailSectionState extends State<NavigationRailSection> {
|
|
int navRailIndex = 0;
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
return NavigationRail(
|
|
onDestinationSelected: (selectedIndex) {
|
|
setState(() {
|
|
navRailIndex = selectedIndex;
|
|
});
|
|
},
|
|
elevation: 4,
|
|
leading: FloatingActionButton(
|
|
child: const Icon(Icons.create), onPressed: () {}),
|
|
groupAlignment: 0.0,
|
|
selectedIndex: navRailIndex,
|
|
labelType: NavigationRailLabelType.selected,
|
|
destinations: <NavigationRailDestination>[
|
|
...destinations.map((destination) {
|
|
return NavigationRailDestination(
|
|
label: Text(destination.label),
|
|
icon: destination.icon,
|
|
selectedIcon: destination.selectedIcon,
|
|
);
|
|
}),
|
|
],
|
|
);
|
|
}
|
|
}
|
|
|
|
class Tabs extends StatefulWidget {
|
|
const Tabs({super.key});
|
|
|
|
@override
|
|
State<Tabs> createState() => _TabsState();
|
|
}
|
|
|
|
class _TabsState extends State<Tabs> with TickerProviderStateMixin {
|
|
late TabController _tabController;
|
|
|
|
@override
|
|
void initState() {
|
|
super.initState();
|
|
_tabController = TabController(length: 3, vsync: this);
|
|
}
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
return ComponentDecoration(
|
|
label: 'Tabs',
|
|
tooltipMessage: 'Use TabBar',
|
|
child: SizedBox(
|
|
height: 80,
|
|
child: Scaffold(
|
|
appBar: AppBar(
|
|
bottom: TabBar(
|
|
controller: _tabController,
|
|
tabs: const <Widget>[
|
|
Tab(
|
|
icon: Icon(Icons.videocam_outlined),
|
|
text: 'Video',
|
|
iconMargin: EdgeInsets.only(bottom: 0.0),
|
|
),
|
|
Tab(
|
|
icon: Icon(Icons.photo_outlined),
|
|
text: 'Photos',
|
|
iconMargin: EdgeInsets.only(bottom: 0.0),
|
|
),
|
|
Tab(
|
|
icon: Icon(Icons.audiotrack_sharp),
|
|
text: 'Audio',
|
|
iconMargin: EdgeInsets.only(bottom: 0.0),
|
|
),
|
|
],
|
|
),
|
|
// TODO: Showcase secondary tab bar https://github.com/flutter/flutter/issues/111962
|
|
),
|
|
),
|
|
),
|
|
);
|
|
}
|
|
}
|
|
|
|
class TopAppBars extends StatelessWidget {
|
|
const TopAppBars({super.key});
|
|
|
|
static final actions = [
|
|
IconButton(icon: const Icon(Icons.attach_file), onPressed: () {}),
|
|
IconButton(icon: const Icon(Icons.event), onPressed: () {}),
|
|
IconButton(icon: const Icon(Icons.more_vert), onPressed: () {}),
|
|
];
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
return ComponentDecoration(
|
|
label: 'Top app bars',
|
|
tooltipMessage:
|
|
'Use AppBar, SliverAppBar, SliverAppBar.medium, or SliverAppBar.large',
|
|
child: Column(
|
|
children: [
|
|
AppBar(
|
|
title: const Text('Center-aligned'),
|
|
leading: const BackButton(),
|
|
actions: [
|
|
IconButton(
|
|
iconSize: 32,
|
|
icon: const Icon(Icons.account_circle_outlined),
|
|
onPressed: () {},
|
|
),
|
|
],
|
|
centerTitle: true,
|
|
),
|
|
colDivider,
|
|
AppBar(
|
|
title: const Text('Small'),
|
|
leading: const BackButton(),
|
|
actions: actions,
|
|
centerTitle: false,
|
|
),
|
|
colDivider,
|
|
SizedBox(
|
|
height: 100,
|
|
child: CustomScrollView(
|
|
slivers: [
|
|
SliverAppBar.medium(
|
|
title: const Text('Medium'),
|
|
leading: const BackButton(),
|
|
actions: actions,
|
|
),
|
|
const SliverFillRemaining(),
|
|
],
|
|
),
|
|
),
|
|
colDivider,
|
|
SizedBox(
|
|
height: 130,
|
|
child: CustomScrollView(
|
|
slivers: [
|
|
SliverAppBar.large(
|
|
title: const Text('Large'),
|
|
leading: const BackButton(),
|
|
actions: actions,
|
|
),
|
|
const SliverFillRemaining(),
|
|
],
|
|
),
|
|
),
|
|
],
|
|
),
|
|
);
|
|
}
|
|
}
|
|
|
|
class Menus extends StatefulWidget {
|
|
const Menus({super.key});
|
|
|
|
@override
|
|
State<Menus> createState() => _MenusState();
|
|
}
|
|
|
|
class _MenusState extends State<Menus> {
|
|
final TextEditingController colorController = TextEditingController();
|
|
final TextEditingController iconController = TextEditingController();
|
|
IconLabel? selectedIcon = IconLabel.smile;
|
|
ColorLabel? selectedColor;
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
final List<DropdownMenuEntry<ColorLabel>> colorEntries =
|
|
<DropdownMenuEntry<ColorLabel>>[];
|
|
for (final ColorLabel color in ColorLabel.values) {
|
|
colorEntries.add(DropdownMenuEntry<ColorLabel>(
|
|
value: color, label: color.label, enabled: color.label != 'Grey'));
|
|
}
|
|
|
|
final List<DropdownMenuEntry<IconLabel>> iconEntries =
|
|
<DropdownMenuEntry<IconLabel>>[];
|
|
for (final IconLabel icon in IconLabel.values) {
|
|
iconEntries
|
|
.add(DropdownMenuEntry<IconLabel>(value: icon, label: icon.label));
|
|
}
|
|
|
|
return ComponentDecoration(
|
|
label: 'Menus',
|
|
tooltipMessage: 'Use MenuAnchor or DropdownMenu<T>',
|
|
child: Column(
|
|
children: [
|
|
Row(
|
|
mainAxisAlignment: MainAxisAlignment.center,
|
|
children: const <Widget>[
|
|
ButtonAnchorExample(),
|
|
rowDivider,
|
|
IconButtonAnchorExample(),
|
|
],
|
|
),
|
|
colDivider,
|
|
Wrap(
|
|
alignment: WrapAlignment.spaceAround,
|
|
runAlignment: WrapAlignment.center,
|
|
crossAxisAlignment: WrapCrossAlignment.center,
|
|
spacing: smallSpacing,
|
|
runSpacing: smallSpacing,
|
|
children: [
|
|
DropdownMenu<ColorLabel>(
|
|
controller: colorController,
|
|
label: const Text('Color'),
|
|
enableFilter: true,
|
|
dropdownMenuEntries: colorEntries,
|
|
inputDecorationTheme: const InputDecorationTheme(filled: true),
|
|
onSelected: (color) {
|
|
setState(() {
|
|
selectedColor = color;
|
|
});
|
|
},
|
|
),
|
|
DropdownMenu<IconLabel>(
|
|
initialSelection: IconLabel.smile,
|
|
controller: iconController,
|
|
leadingIcon: const Icon(Icons.search),
|
|
label: const Text('Icon'),
|
|
dropdownMenuEntries: iconEntries,
|
|
onSelected: (icon) {
|
|
setState(() {
|
|
selectedIcon = icon;
|
|
});
|
|
},
|
|
),
|
|
Icon(
|
|
selectedIcon?.icon,
|
|
color: selectedColor?.color ?? Colors.grey.withOpacity(0.5),
|
|
)
|
|
],
|
|
),
|
|
],
|
|
),
|
|
);
|
|
}
|
|
}
|
|
|
|
enum ColorLabel {
|
|
blue('Blue', Colors.blue),
|
|
pink('Pink', Colors.pink),
|
|
green('Green', Colors.green),
|
|
yellow('Yellow', Colors.yellow),
|
|
grey('Grey', Colors.grey);
|
|
|
|
const ColorLabel(this.label, this.color);
|
|
final String label;
|
|
final Color color;
|
|
}
|
|
|
|
enum IconLabel {
|
|
smile('Smile', Icons.sentiment_satisfied_outlined),
|
|
cloud(
|
|
'Cloud',
|
|
Icons.cloud_outlined,
|
|
),
|
|
brush('Brush', Icons.brush_outlined),
|
|
heart('Heart', Icons.favorite);
|
|
|
|
const IconLabel(this.label, this.icon);
|
|
final String label;
|
|
final IconData icon;
|
|
}
|
|
|
|
class Sliders extends StatefulWidget {
|
|
const Sliders({super.key});
|
|
|
|
@override
|
|
State<Sliders> createState() => _SlidersState();
|
|
}
|
|
|
|
class _SlidersState extends State<Sliders> {
|
|
double sliderValue0 = 30.0;
|
|
double sliderValue1 = 20.0;
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
return ComponentDecoration(
|
|
label: 'Sliders',
|
|
tooltipMessage: 'Use Slider or RangeSlider',
|
|
child: Column(
|
|
children: <Widget>[
|
|
Slider(
|
|
max: 100,
|
|
value: sliderValue0,
|
|
onChanged: (value) {
|
|
setState(() {
|
|
sliderValue0 = value;
|
|
});
|
|
},
|
|
),
|
|
const SizedBox(height: 20),
|
|
Slider(
|
|
max: 100,
|
|
divisions: 5,
|
|
value: sliderValue1,
|
|
label: sliderValue1.round().toString(),
|
|
onChanged: (value) {
|
|
setState(() {
|
|
sliderValue1 = value;
|
|
});
|
|
},
|
|
),
|
|
],
|
|
));
|
|
}
|
|
}
|
|
|
|
class ComponentDecoration extends StatefulWidget {
|
|
const ComponentDecoration({
|
|
super.key,
|
|
required this.label,
|
|
required this.child,
|
|
this.tooltipMessage = '',
|
|
});
|
|
|
|
final String label;
|
|
final Widget child;
|
|
final String? tooltipMessage;
|
|
|
|
@override
|
|
State<ComponentDecoration> createState() => _ComponentDecorationState();
|
|
}
|
|
|
|
class _ComponentDecorationState extends State<ComponentDecoration> {
|
|
final focusNode = FocusNode();
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
return RepaintBoundary(
|
|
child: Padding(
|
|
padding: const EdgeInsets.symmetric(vertical: smallSpacing),
|
|
child: Column(
|
|
children: [
|
|
Row(
|
|
mainAxisAlignment: MainAxisAlignment.center,
|
|
children: [
|
|
Text(widget.label,
|
|
style: Theme.of(context).textTheme.titleSmall),
|
|
Tooltip(
|
|
message: widget.tooltipMessage,
|
|
child: const Padding(
|
|
padding: EdgeInsets.symmetric(horizontal: 5.0),
|
|
child: Icon(Icons.info_outline, size: 16)),
|
|
),
|
|
],
|
|
),
|
|
ConstrainedBox(
|
|
constraints:
|
|
const BoxConstraints.tightFor(width: widthConstraint),
|
|
// Tapping within the a component card should request focus
|
|
// for that component's children.
|
|
child: Focus(
|
|
focusNode: focusNode,
|
|
canRequestFocus: true,
|
|
child: GestureDetector(
|
|
onTapDown: (_) {
|
|
focusNode.requestFocus();
|
|
},
|
|
behavior: HitTestBehavior.opaque,
|
|
child: Card(
|
|
elevation: 0,
|
|
shape: RoundedRectangleBorder(
|
|
side: BorderSide(
|
|
color: Theme.of(context).colorScheme.outlineVariant,
|
|
),
|
|
borderRadius: const BorderRadius.all(Radius.circular(12)),
|
|
),
|
|
child: Padding(
|
|
padding: const EdgeInsets.symmetric(
|
|
horizontal: 5.0, vertical: 20.0),
|
|
child: Center(
|
|
child: widget.child,
|
|
),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
],
|
|
),
|
|
),
|
|
);
|
|
}
|
|
}
|
|
|
|
class ComponentGroupDecoration extends StatelessWidget {
|
|
const ComponentGroupDecoration(
|
|
{super.key, required this.label, required this.children});
|
|
|
|
final String label;
|
|
final List<Widget> children;
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
// Fully traverse this component group before moving on
|
|
return FocusTraversalGroup(
|
|
child: Card(
|
|
margin: EdgeInsets.zero,
|
|
elevation: 0,
|
|
color: Theme.of(context).colorScheme.surfaceVariant.withOpacity(0.3),
|
|
child: Padding(
|
|
padding: const EdgeInsets.symmetric(vertical: 20.0),
|
|
child: Center(
|
|
child: Column(
|
|
children: [
|
|
Text(label, style: Theme.of(context).textTheme.titleLarge),
|
|
colDivider,
|
|
...children
|
|
],
|
|
),
|
|
),
|
|
),
|
|
),
|
|
);
|
|
}
|
|
}
|