| 1 | // Copyright 2014 The Flutter Authors. All rights reserved. |
|---|---|
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | import 'package:flutter/material.dart'; |
| 6 | |
| 7 | /// Flutter code sample for [RawAutocomplete]. |
| 8 | |
| 9 | void main() => runApp(const AutocompleteExampleApp()); |
| 10 | |
| 11 | class AutocompleteExampleApp extends StatelessWidget { |
| 12 | const AutocompleteExampleApp({super.key}); |
| 13 | |
| 14 | @override |
| 15 | Widget build(BuildContext context) { |
| 16 | return MaterialApp( |
| 17 | home: Scaffold( |
| 18 | appBar: AppBar( |
| 19 | title: const Text('RawAutocomplete Basic'), |
| 20 | ), |
| 21 | body: const Center( |
| 22 | child: AutocompleteBasicExample(), |
| 23 | ), |
| 24 | ), |
| 25 | ); |
| 26 | } |
| 27 | } |
| 28 | |
| 29 | class AutocompleteBasicExample extends StatelessWidget { |
| 30 | const AutocompleteBasicExample({super.key}); |
| 31 | |
| 32 | static const List<String> _options = <String>[ |
| 33 | 'aardvark', |
| 34 | 'bobcat', |
| 35 | 'chameleon', |
| 36 | ]; |
| 37 | |
| 38 | @override |
| 39 | Widget build(BuildContext context) { |
| 40 | return RawAutocomplete<String>( |
| 41 | optionsBuilder: (TextEditingValue textEditingValue) { |
| 42 | return _options.where((String option) { |
| 43 | return option.contains(textEditingValue.text.toLowerCase()); |
| 44 | }); |
| 45 | }, |
| 46 | fieldViewBuilder: ( |
| 47 | BuildContext context, |
| 48 | TextEditingController textEditingController, |
| 49 | FocusNode focusNode, |
| 50 | VoidCallback onFieldSubmitted, |
| 51 | ) { |
| 52 | return TextFormField( |
| 53 | controller: textEditingController, |
| 54 | focusNode: focusNode, |
| 55 | onFieldSubmitted: (String value) { |
| 56 | onFieldSubmitted(); |
| 57 | }, |
| 58 | ); |
| 59 | }, |
| 60 | optionsViewBuilder: ( |
| 61 | BuildContext context, |
| 62 | AutocompleteOnSelected<String> onSelected, |
| 63 | Iterable<String> options, |
| 64 | ) { |
| 65 | return Align( |
| 66 | alignment: Alignment.topLeft, |
| 67 | child: Material( |
| 68 | elevation: 4.0, |
| 69 | child: SizedBox( |
| 70 | height: 200.0, |
| 71 | child: ListView.builder( |
| 72 | padding: const EdgeInsets.all(8.0), |
| 73 | itemCount: options.length, |
| 74 | itemBuilder: (BuildContext context, int index) { |
| 75 | final String option = options.elementAt(index); |
| 76 | return GestureDetector( |
| 77 | onTap: () { |
| 78 | onSelected(option); |
| 79 | }, |
| 80 | child: ListTile( |
| 81 | title: Text(option), |
| 82 | ), |
| 83 | ); |
| 84 | }, |
| 85 | ), |
| 86 | ), |
| 87 | ), |
| 88 | ); |
| 89 | }, |
| 90 | ); |
| 91 | } |
| 92 | } |
| 93 |