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Autocomplete dartpad examples fix (#77863)

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Fixes the dartpad examples on the docs site.
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Justin McCandless 2021-03-17 15:50:53 -07:00 committed by GitHub
parent 637fb5b9be
commit 70aa045705
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2 changed files with 294 additions and 206 deletions
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52
packages/flutter/lib/src/material/autocomplete.dart
View file

@ -14,15 +14,33 @@ import 'text_form_field.dart';
/// This example shows how to create a very basic Autocomplete widget using the
/// default UI.
///
/// ```dart imports
/// ```dart main
/// import 'package:flutter/material.dart';
/// ```
///
/// ```dart
/// void main() => runApp(const AutocompleteExampleApp());
///
/// class AutocompleteExampleApp extends StatelessWidget {
/// const AutocompleteExampleApp({Key? key}) : super(key: key);
///
/// @override
/// Widget build(BuildContext context) {
/// return MaterialApp(
/// home: Scaffold(
/// appBar: AppBar(
/// title: const Text('Autocomplete Basic'),
/// ),
/// body: const Center(
/// child: AutocompleteBasicExample(),
/// ),
/// ),
/// );
/// }
/// }
///
/// class AutocompleteBasicExample extends StatelessWidget {
/// AutocompleteBasicExample({Key? key}) : super(key: key);
/// const AutocompleteBasicExample({Key? key}) : super(key: key);
///
/// final List<String> _kOptions = <String>[
/// static const List<String> _kOptions = <String>[
/// 'aardvark',
/// 'bobcat',
/// 'chameleon',
@ -52,11 +70,29 @@ import 'text_form_field.dart';
/// This example shows how to create an Autocomplete widget with a custom type.
/// Try searching with text from the name or email field.
///
/// ```dart imports
/// ```dart main
/// import 'package:flutter/material.dart';
/// ```
///
/// ```dart
/// void main() => runApp(const AutocompleteExampleApp());
///
/// class AutocompleteExampleApp extends StatelessWidget {
/// const AutocompleteExampleApp({Key? key}) : super(key: key);
///
/// @override
/// Widget build(BuildContext context) {
/// return MaterialApp(
/// home: Scaffold(
/// appBar: AppBar(
/// title: const Text('Autocomplete Basic User'),
/// ),
/// body: const Center(
/// child: AutocompleteBasicUserExample(),
/// ),
/// ),
/// );
/// }
/// }
///
/// @immutable
/// class User {
/// const User({

448
packages/flutter/lib/src/widgets/autocomplete.dart
View file

@ -78,12 +78,30 @@ typedef AutocompleteOptionToString<T extends Object> = String Function(T option)
/// This example shows how to create a very basic autocomplete widget using the
/// [fieldViewBuilder] and [optionsViewBuilder] parameters.
///
/// ```dart imports
/// import 'package:flutter/widgets.dart';
/// ```dart main
/// import 'package:flutter/material.dart';
/// ```
/// import 'package:flutter/widgets.dart';
///
/// void main() => runApp(const AutocompleteExampleApp());
///
/// class AutocompleteExampleApp extends StatelessWidget {
/// const AutocompleteExampleApp({Key? key}) : super(key: key);
///
/// @override
/// Widget build(BuildContext context) {
/// return MaterialApp(
/// home: Scaffold(
/// appBar: AppBar(
/// title: const Text('RawAutocomplete Basic'),
/// ),
/// body: const Center(
/// child: AutocompleteBasicExample(),
/// ),
/// ),
/// );
/// }
/// }
///
/// ```dart
/// class AutocompleteBasicExample extends StatelessWidget {
/// const AutocompleteBasicExample({Key? key}) : super(key: key);
///
@ -152,12 +170,30 @@ typedef AutocompleteOptionToString<T extends Object> = String Function(T option)
/// This example is similar to the previous example, but it uses a custom T data
/// type instead of directly using String.
///
/// ```dart imports
/// import 'package:flutter/widgets.dart';
/// ```dart main
/// import 'package:flutter/material.dart';
/// ```
/// import 'package:flutter/widgets.dart';
///
/// void main() => runApp(const AutocompleteExampleApp());
///
/// class AutocompleteExampleApp extends StatelessWidget {
/// const AutocompleteExampleApp({Key? key}) : super(key: key);
///
/// @override
/// Widget build(BuildContext context) {
/// return MaterialApp(
/// home: Scaffold(
/// appBar: AppBar(
/// title: const Text('RawAutocomplete Custom Type'),
/// ),
/// body: const Center(
/// child: AutocompleteCustomTypeExample(),
/// ),
/// ),
/// );
/// }
/// }
///
/// ```dart
/// // An example of a type that someone might want to autocomplete a list of.
/// @immutable
/// class User {
@ -254,26 +290,44 @@ typedef AutocompleteOptionToString<T extends Object> = String Function(T option)
/// {@tool dartpad --template=freeform}
/// This example shows the use of RawAutocomplete in a form.
///
/// ```dart imports
/// import 'package:flutter/widgets.dart';
/// ```dart main
/// import 'package:flutter/material.dart';
/// ```
/// import 'package:flutter/widgets.dart';
///
/// ```dart
/// class AutocompleteFormExamplePage extends StatefulWidget {
/// const AutocompleteFormExamplePage({Key? key}) : super(key: key);
/// void main() => runApp(const AutocompleteExampleApp());
///
/// class AutocompleteExampleApp extends StatelessWidget {
/// const AutocompleteExampleApp({Key? key}) : super(key: key);
///
/// @override
/// AutocompleteFormExample createState() => AutocompleteFormExample();
/// Widget build(BuildContext context) {
/// return MaterialApp(
/// home: Scaffold(
/// appBar: AppBar(
/// title: const Text('RawAutocomplete Form'),
/// ),
/// body: const Center(
/// child: AutocompleteFormExample(),
/// ),
/// ),
/// );
/// }
/// }
///
/// class AutocompleteFormExample extends State<AutocompleteFormExamplePage> {
/// class AutocompleteFormExample extends StatefulWidget {
/// const AutocompleteFormExample({Key? key}) : super(key: key);
///
/// @override
/// AutocompleteFormExampleState createState() => AutocompleteFormExampleState();
/// }
///
/// class AutocompleteFormExampleState extends State<AutocompleteFormExample> {
/// final GlobalKey<FormState> _formKey = GlobalKey<FormState>();
/// final TextEditingController _textEditingController = TextEditingController();
/// String? _dropdownValue;
/// String? _autocompleteSelection;
///
/// final List<String> _options = <String>[
/// static const List<String> _options = <String>[
/// 'aardvark',
/// 'bobcat',
/// 'chameleon',
@ -281,146 +335,139 @@ typedef AutocompleteOptionToString<T extends Object> = String Function(T option)
///
/// @override
/// Widget build(BuildContext context) {
/// return Scaffold(
/// appBar: AppBar(
/// title: const Text('Autocomplete Form Example'),
/// ),
/// body: Center(
/// child: Form(
/// key: _formKey,
/// child: Column(
/// children: <Widget>[
/// DropdownButtonFormField<String>(
/// value: _dropdownValue,
/// icon: const Icon(Icons.arrow_downward),
/// hint: const Text('This is a regular DropdownButtonFormField'),
/// iconSize: 24,
/// elevation: 16,
/// style: const TextStyle(color: Colors.deepPurple),
/// onChanged: (String? newValue) {
/// setState(() {
/// _dropdownValue = newValue;
/// });
/// },
/// items: <String>['One', 'Two', 'Free', 'Four']
/// .map<DropdownMenuItem<String>>((String value) {
/// return DropdownMenuItem<String>(
/// value: value,
/// child: Text(value),
/// );
/// }).toList(),
/// validator: (String? value) {
/// if (value == null) {
/// return 'Must make a selection.';
/// }
/// return null;
/// },
/// ),
/// TextFormField(
/// controller: _textEditingController,
/// return Form(
/// key: _formKey,
/// child: Column(
/// children: <Widget>[
/// DropdownButtonFormField<String>(
/// value: _dropdownValue,
/// icon: const Icon(Icons.arrow_downward),
/// hint: const Text('This is a regular DropdownButtonFormField'),
/// iconSize: 24,
/// elevation: 16,
/// style: const TextStyle(color: Colors.deepPurple),
/// onChanged: (String? newValue) {
/// setState(() {
/// _dropdownValue = newValue;
/// });
/// },
/// items: <String>['One', 'Two', 'Free', 'Four']
/// .map<DropdownMenuItem<String>>((String value) {
/// return DropdownMenuItem<String>(
/// value: value,
/// child: Text(value),
/// );
/// }).toList(),
/// validator: (String? value) {
/// if (value == null) {
/// return 'Must make a selection.';
/// }
/// return null;
/// },
/// ),
/// TextFormField(
/// controller: _textEditingController,
/// decoration: const InputDecoration(
/// hintText: 'This is a regular TextFormField',
/// ),
/// validator: (String? value) {
/// if (value == null || value.isEmpty) {
/// return 'Can\'t be empty.';
/// }
/// return null;
/// },
/// ),
/// RawAutocomplete<String>(
/// optionsBuilder: (TextEditingValue textEditingValue) {
/// return _options.where((String option) {
/// return option.contains(textEditingValue.text.toLowerCase());
/// });
/// },
/// onSelected: (String selection) {
/// setState(() {
/// _autocompleteSelection = selection;
/// });
/// },
/// fieldViewBuilder: (BuildContext context, TextEditingController textEditingController, FocusNode focusNode, VoidCallback onFieldSubmitted) {
/// return TextFormField(
/// controller: textEditingController,
/// decoration: const InputDecoration(
/// hintText: 'This is a regular TextFormField',
/// hintText: 'This is a RawAutocomplete!',
/// ),
/// focusNode: focusNode,
/// onFieldSubmitted: (String value) {
/// onFieldSubmitted();
/// },
/// validator: (String? value) {
/// if (value == null || value.isEmpty) {
/// return 'Can\'t be empty.';
/// if (!_options.contains(value)) {
/// return 'Nothing selected.';
/// }
/// return null;
/// },
/// ),
/// RawAutocomplete<String>(
/// optionsBuilder: (TextEditingValue textEditingValue) {
/// return _options.where((String option) {
/// return option.contains(textEditingValue.text.toLowerCase());
/// });
/// },
/// onSelected: (String selection) {
/// setState(() {
/// _autocompleteSelection = selection;
/// });
/// },
/// fieldViewBuilder: (BuildContext context, TextEditingController textEditingController, FocusNode focusNode, VoidCallback onFieldSubmitted) {
/// return TextFormField(
/// controller: textEditingController,
/// decoration: const InputDecoration(
/// hintText: 'This is an RawAutocomplete!',
/// ),
/// focusNode: focusNode,
/// onFieldSubmitted: (String value) {
/// onFieldSubmitted();
/// },
/// validator: (String? value) {
/// if (!_options.contains(value)) {
/// return 'Nothing selected.';
/// }
/// return null;
/// },
/// );
/// },
/// optionsViewBuilder: (BuildContext context, AutocompleteOnSelected<String> onSelected, Iterable<String> options) {
/// return Align(
/// alignment: Alignment.topLeft,
/// child: Material(
/// elevation: 4.0,
/// child: SizedBox(
/// height: 200.0,
/// child: ListView.builder(
/// padding: const EdgeInsets.all(8.0),
/// itemCount: options.length,
/// itemBuilder: (BuildContext context, int index) {
/// final String option = options.elementAt(index);
/// return GestureDetector(
/// onTap: () {
/// onSelected(option);
/// },
/// child: ListTile(
/// title: Text(option),
/// ),
/// );
/// );
/// },
/// optionsViewBuilder: (BuildContext context, AutocompleteOnSelected<String> onSelected, Iterable<String> options) {
/// return Align(
/// alignment: Alignment.topLeft,
/// child: Material(
/// elevation: 4.0,
/// child: SizedBox(
/// height: 200.0,
/// child: ListView.builder(
/// padding: const EdgeInsets.all(8.0),
/// itemCount: options.length,
/// itemBuilder: (BuildContext context, int index) {
/// final String option = options.elementAt(index);
/// return GestureDetector(
/// onTap: () {
/// onSelected(option);
/// },
/// ),
/// child: ListTile(
/// title: Text(option),
/// ),
/// );
/// },
/// ),
/// ),
/// ),
/// );
/// },
/// ),
/// ElevatedButton(
/// onPressed: () {
/// FocusScope.of(context).requestFocus(new FocusNode());
/// if (!_formKey.currentState!.validate()) {
/// return;
/// }
/// showDialog<void>(
/// context: context,
/// builder: (BuildContext context) {
/// return AlertDialog(
/// title: const Text('Successfully submitted'),
/// content: SingleChildScrollView(
/// child: ListBody(
/// children: <Widget>[
/// Text('DropdownButtonFormField: "$_dropdownValue"'),
/// Text('TextFormField: "${_textEditingController.text}"'),
/// Text('RawAutocomplete: "$_autocompleteSelection"'),
/// ],
/// ),
/// ),
/// actions: <Widget>[
/// TextButton(
/// child: const Text('Ok'),
/// onPressed: () {
/// Navigator.of(context).pop();
/// },
/// ),
/// ],
/// );
/// },
/// ),
/// ElevatedButton(
/// onPressed: () {
/// FocusScope.of(context).requestFocus(new FocusNode());
/// if (!_formKey.currentState!.validate()) {
/// return;
/// }
/// showDialog<void>(
/// context: context,
/// builder: (BuildContext context) {
/// return AlertDialog(
/// title: const Text('Successfully submitted'),
/// content: SingleChildScrollView(
/// child: ListBody(
/// children: <Widget>[
/// Text('DropdownButtonFormField: "$_dropdownValue"'),
/// Text('TextFormField: "${_textEditingController.text}"'),
/// Text('RawAutocomplete: "$_autocompleteSelection"'),
/// ],
/// ),
/// ),
/// actions: <Widget>[
/// TextButton(
/// child: const Text('Ok'),
/// onPressed: () {
/// Navigator.of(context).pop();
/// },
/// ),
/// ],
/// );
/// },
/// );
/// },
/// child: const Text('Submit'),
/// ),
/// ],
/// );
/// },
/// child: const Text('Submit'),
/// ),
/// ),
/// ],
/// ),
/// );
/// }
@ -483,78 +530,83 @@ class RawAutocomplete<T extends Object> extends StatefulWidget {
/// This examples shows how to create an autocomplete widget with the text
/// field in the AppBar and the results in the main body of the app.
///
/// ```dart imports
/// import 'package:flutter/widgets.dart';
/// ```dart main
/// import 'package:flutter/material.dart';
/// ```
/// import 'package:flutter/widgets.dart';
///
/// ```dart
/// final List<String> _options = <String>[
/// void main() => runApp(const AutocompleteExampleApp());
///
/// class AutocompleteExampleApp extends StatelessWidget {
/// const AutocompleteExampleApp({Key? key}) : super(key: key);
///
/// @override
/// Widget build(BuildContext context) {
/// return const MaterialApp(
/// home: RawAutocompleteSplit(),
/// );
/// }
/// }
///
/// const List<String> _options = <String>[
/// 'aardvark',
/// 'bobcat',
/// 'chameleon',
/// ];
///
/// class RawAutocompleteSplitPage extends StatefulWidget {
/// const RawAutocompleteSplitPage({Key? key}) : super(key: key);
/// class RawAutocompleteSplit extends StatefulWidget {
/// const RawAutocompleteSplit({Key? key}) : super(key: key);
///
/// @override
/// RawAutocompleteSplitPageState createState() => RawAutocompleteSplitPageState();
/// RawAutocompleteSplitState createState() => RawAutocompleteSplitState();
/// }
///
/// class RawAutocompleteSplitPageState extends State<RawAutocompleteSplitPage> {
/// class RawAutocompleteSplitState extends State<RawAutocompleteSplit> {
/// final TextEditingController _textEditingController = TextEditingController();
/// final FocusNode _focusNode = FocusNode();
/// final GlobalKey _autocompleteKey = GlobalKey();
///
/// @override
/// Widget build(BuildContext context) {
/// return MaterialApp(
/// theme: ThemeData(
/// primarySwatch: Colors.blue,
/// ),
/// title: 'Split RawAutocomplete App',
/// home: Scaffold(
/// appBar: AppBar(
/// // This is where the real field is being built.
/// title: TextFormField(
/// controller: _textEditingController,
/// focusNode: _focusNode,
/// decoration: const InputDecoration(
/// hintText: 'Split RawAutocomplete App',
/// ),
/// onFieldSubmitted: (String value) {
/// RawAutocomplete.onFieldSubmitted<String>(_autocompleteKey);
/// },
/// return Scaffold(
/// appBar: AppBar(
/// // This is where the real field is being built.
/// title: TextFormField(
/// controller: _textEditingController,
/// focusNode: _focusNode,
/// decoration: const InputDecoration(
/// hintText: 'Split RawAutocomplete App',
/// ),
/// onFieldSubmitted: (String value) {
/// RawAutocomplete.onFieldSubmitted<String>(_autocompleteKey);
/// },
/// ),
/// body: Align(
/// alignment: Alignment.topLeft,
/// child: RawAutocomplete<String>(
/// key: _autocompleteKey,
/// focusNode: _focusNode,
/// textEditingController: _textEditingController,
/// optionsBuilder: (TextEditingValue textEditingValue) {
/// return _options.where((String option) {
/// return option.contains(textEditingValue.text.toLowerCase());
/// }).toList();
/// },
/// optionsViewBuilder: (BuildContext context, AutocompleteOnSelected<String> onSelected, Iterable<String> options) {
/// return Material(
/// elevation: 4.0,
/// child: ListView(
/// children: options.map((String option) => GestureDetector(
/// onTap: () {
/// onSelected(option);
/// },
/// child: ListTile(
/// title: Text(option),
/// ),
/// )).toList(),
/// ),
/// );
/// },
/// ),
/// ),
/// body: Align(
/// alignment: Alignment.topLeft,
/// child: RawAutocomplete<String>(
/// key: _autocompleteKey,
/// focusNode: _focusNode,
/// textEditingController: _textEditingController,
/// optionsBuilder: (TextEditingValue textEditingValue) {
/// return _options.where((String option) {
/// return option.contains(textEditingValue.text.toLowerCase());
/// }).toList();
/// },
/// optionsViewBuilder: (BuildContext context, AutocompleteOnSelected<String> onSelected, Iterable<String> options) {
/// return Material(
/// elevation: 4.0,
/// child: ListView(
/// children: options.map((String option) => GestureDetector(
/// onTap: () {
/// onSelected(option);
/// },
/// child: ListTile(
/// title: Text(option),
/// ),
/// )).toList(),
/// ),
/// );
/// },
/// ),
/// ),
/// );