text stringlengths 6 13.6M | id stringlengths 13 176 | metadata dict | __index_level_0__ int64 0 1.69k |
|---|---|---|---|
samples:
- name: Kittens
screenshots:
- url: https://placekitten.com/500/500
alt: a kitten
- url: https://placekitten.com/400/400
alt: another kitten
source: https://github.com/johnpryan/kittens
description: A sample kitten app
difficulty: beginner
widgets:
- Anim... | samples/web/samples_index/test/yaml/single.yaml/0 | {
"file_path": "samples/web/samples_index/test/yaml/single.yaml",
"repo_id": "samples",
"token_count": 235
} | 1,269 |
name: element_embedding_demo
description: A small app to be embedded into a HTML element (see web/index.html)
publish_to: 'none'
version: 1.0.0+1
environment:
sdk: ^3.2.0
dependencies:
cupertino_icons: ^1.0.2
flutter:
sdk: flutter
js: ^0.7.0
dev_dependencies:
flutter_test:
sdk: flutter
flutter_li... | samples/web_embedding/element_embedding_demo/pubspec.yaml/0 | {
"file_path": "samples/web_embedding/element_embedding_demo/pubspec.yaml",
"repo_id": "samples",
"token_count": 173
} | 1,270 |
{
"name": "element_embedding_demo",
"short_name": "element_embedding",
"start_url": ".",
"display": "standalone",
"background_color": "#0175C2",
"theme_color": "#0175C2",
"description": "An example of how to embed a Flutter Web app into any HTML Element of a page.",
"orientation": "portr... | samples/web_embedding/element_embedding_demo/web/manifest.json/0 | {
"file_path": "samples/web_embedding/element_embedding_demo/web/manifest.json",
"repo_id": "samples",
"token_count": 533
} | 1,271 |
import 'dart:js_interop';
import 'package:web/web.dart';
/// Locates the root of the flutter app (for now, the first element that has
/// a flt-renderer tag), and dispatches a JS event named [name] with [data].
void broadcastAppEvent(String name, JSObject data) {
final HTMLElement? root = document.querySelector('[fl... | samples/web_embedding/ng-flutter/flutter/lib/src/js_interop/helper.dart/0 | {
"file_path": "samples/web_embedding/ng-flutter/flutter/lib/src/js_interop/helper.dart",
"repo_id": "samples",
"token_count": 183
} | 1,272 |
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>NgFlutter</title>
<base href="/">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="icon" type="image/x-icon" href="favicon.ico">
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preco... | samples/web_embedding/ng-flutter/src/index.html/0 | {
"file_path": "samples/web_embedding/ng-flutter/src/index.html",
"repo_id": "samples",
"token_count": 253
} | 1,273 |
# This is a list of some of the Flutter website's contributors.
# To see the full list of contributors, see the revision history in
# source control with a command like: git shortlog -sne
#
# Names should be added to the list like so:
#
# Name/Organization <email address>
Google Inc.
Faisal Abid <faisal.abid@gmail.... | website/AUTHORS/0 | {
"file_path": "website/AUTHORS",
"repo_id": "website",
"token_count": 232
} | 1,274 |
// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can
// be found in the LICENSE file.
// Demonstrates a basic shared element (Hero) animation.
import 'package:flutter/material.dart';
class BasicHeroAnimation extends StatelessWidget {
co... | website/examples/_animation/basic_hero_animation/lib/main.dart/0 | {
"file_path": "website/examples/_animation/basic_hero_animation/lib/main.dart",
"repo_id": "website",
"token_count": 1045
} | 1,275 |
import 'package:flutter/material.dart';
void drawerStart() {
// #docregion DrawerStart
Scaffold(
appBar: AppBar(
title: const Text('AppBar without hamburger button'),
),
drawer: null, // Add a Drawer here in the next step.
);
// #enddocregion DrawerStart
}
void drawerEmpty() {
// #docregio... | website/examples/cookbook/design/drawer/lib/drawer.dart/0 | {
"file_path": "website/examples/cookbook/design/drawer/lib/drawer.dart",
"repo_id": "website",
"token_count": 936
} | 1,276 |
import 'package:flutter/material.dart';
void main() => runApp(const SnackBarDemo());
class SnackBarDemo extends StatelessWidget {
const SnackBarDemo({super.key});
@override
Widget build(BuildContext context) {
// #docregion Scaffold
return MaterialApp(
title: 'SnackBar Demo',
home: Scaffold... | website/examples/cookbook/design/snackbars/lib/partial.dart/0 | {
"file_path": "website/examples/cookbook/design/snackbars/lib/partial.dart",
"repo_id": "website",
"token_count": 484
} | 1,277 |
import 'package:flutter/material.dart';
// #docregion DownloadButton
@immutable
class DownloadButton extends StatelessWidget {
const DownloadButton({
super.key,
});
@override
Widget build(BuildContext context) {
// TODO:
return const SizedBox();
}
}
// #enddocregion DownloadButton
| website/examples/cookbook/effects/download_button/lib/stateful_widget.dart/0 | {
"file_path": "website/examples/cookbook/effects/download_button/lib/stateful_widget.dart",
"repo_id": "website",
"token_count": 98
} | 1,278 |
import 'dart:ui' as ui;
import 'package:flutter/material.dart';
@immutable
class BubbleBackground extends StatelessWidget {
const BubbleBackground({
super.key,
required this.colors,
this.child,
});
final List<Color> colors;
final Widget? child;
@override
Widget build(BuildContext context) {
... | website/examples/cookbook/effects/gradient_bubbles/lib/bubble_background.dart/0 | {
"file_path": "website/examples/cookbook/effects/gradient_bubbles/lib/bubble_background.dart",
"repo_id": "website",
"token_count": 1113
} | 1,279 |
import 'package:flutter/material.dart';
@immutable
class LocationListItem extends StatelessWidget {
const LocationListItem({
super.key,
required this.imageUrl,
required this.name,
required this.country,
});
final String imageUrl;
final String name;
final String country;
@override
Widget... | website/examples/cookbook/effects/parallax_scrolling/lib/excerpt3.dart/0 | {
"file_path": "website/examples/cookbook/effects/parallax_scrolling/lib/excerpt3.dart",
"repo_id": "website",
"token_count": 1645
} | 1,280 |
import 'package:flutter/material.dart';
// #docregion CircleListItem
class CircleListItem extends StatelessWidget {
const CircleListItem({super.key});
@override
Widget build(BuildContext context) {
return Padding(
padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 8),
child: Container(... | website/examples/cookbook/effects/shimmer_loading/lib/main.dart/0 | {
"file_path": "website/examples/cookbook/effects/shimmer_loading/lib/main.dart",
"repo_id": "website",
"token_count": 2170
} | 1,281 |
// ignore_for_file: unused_element
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import './excerpt1.dart';
// #docregion TypingIndicatorState
class _TypingIndicatorState extends State<TypingIndicator>
with TickerProviderStateMixin {
late AnimationController _appearanceControl... | website/examples/cookbook/effects/typing_indicator/lib/excerpt2.dart/0 | {
"file_path": "website/examples/cookbook/effects/typing_indicator/lib/excerpt2.dart",
"repo_id": "website",
"token_count": 692
} | 1,282 |
name: retrieve_input
description: Sample code for retrieve_input cookbook recipe.
environment:
sdk: ^3.3.0
dependencies:
flutter:
sdk: flutter
dev_dependencies:
example_utils:
path: ../../../example_utils
flutter:
uses-material-design: true
| website/examples/cookbook/forms/retrieve_input/pubspec.yaml/0 | {
"file_path": "website/examples/cookbook/forms/retrieve_input/pubspec.yaml",
"repo_id": "website",
"token_count": 93
} | 1,283 |
This is a stripped down version of the multiplayer sample
in https://github.com/flutter/games/tree/main/samples/multiplayer.
| website/examples/cookbook/games/firestore_multiplayer/README.md/0 | {
"file_path": "website/examples/cookbook/games/firestore_multiplayer/README.md",
"repo_id": "website",
"token_count": 34
} | 1,284 |
import 'package:flutter/material.dart';
void main() => runApp(const MyApp());
class MyApp extends StatelessWidget {
const MyApp({super.key});
@override
Widget build(BuildContext context) {
const title = 'Gesture Demo';
return const MaterialApp(
title: title,
home: MyHomePage(title: title),... | website/examples/cookbook/gestures/handling_taps/lib/main.dart/0 | {
"file_path": "website/examples/cookbook/gestures/handling_taps/lib/main.dart",
"repo_id": "website",
"token_count": 558
} | 1,285 |
import 'package:flutter/material.dart';
void main() {
runApp(
MyApp(
// #docregion Items
items: List<String>.generate(10000, (i) => 'Item $i'),
// #enddocregion Items
),
);
}
class MyApp extends StatelessWidget {
final List<String> items;
const MyApp({super.key, required this.items}... | website/examples/cookbook/lists/long_lists/lib/main.dart/0 | {
"file_path": "website/examples/cookbook/lists/long_lists/lib/main.dart",
"repo_id": "website",
"token_count": 436
} | 1,286 |
import 'package:flutter/material.dart';
class Todo {
final String title;
final String description;
const Todo(this.title, this.description);
}
// #docregion TodosScreen
class TodosScreen extends StatelessWidget {
// Requiring the list of todos.
const TodosScreen({super.key, required this.todos});
final ... | website/examples/cookbook/navigation/passing_data/lib/main_todoscreen.dart/0 | {
"file_path": "website/examples/cookbook/navigation/passing_data/lib/main_todoscreen.dart",
"repo_id": "website",
"token_count": 343
} | 1,287 |
import 'dart:async';
import 'package:http/http.dart' as http;
// #docregion deleteAlbum
Future<http.Response> deleteAlbum(String id) async {
final http.Response response = await http.delete(
Uri.parse('https://jsonplaceholder.typicode.com/albums/$id'),
headers: <String, String>{
'Content-Type': 'appli... | website/examples/cookbook/networking/delete_data/lib/main_step1.dart/0 | {
"file_path": "website/examples/cookbook/networking/delete_data/lib/main_step1.dart",
"repo_id": "website",
"token_count": 147
} | 1,288 |
import 'package:flutter/material.dart';
import 'package:web_socket_channel/web_socket_channel.dart';
void main() => runApp(const MyApp());
class MyApp extends StatelessWidget {
const MyApp({super.key});
@override
Widget build(BuildContext context) {
const title = 'WebSocket Demo';
return const Material... | website/examples/cookbook/networking/web_sockets/lib/main.dart/0 | {
"file_path": "website/examples/cookbook/networking/web_sockets/lib/main.dart",
"repo_id": "website",
"token_count": 992
} | 1,289 |
name: mocking
description: Use the Mockito package to mimic the behavior of services for testing.
environment:
sdk: ^3.3.0
dependencies:
flutter:
sdk: flutter
flutter_localizations:
sdk: flutter
http: ^1.2.0
dev_dependencies:
example_utils:
path: ../../../../example_utils
flutter_test:
sd... | website/examples/cookbook/testing/unit/mocking/pubspec.yaml/0 | {
"file_path": "website/examples/cookbook/testing/unit/mocking/pubspec.yaml",
"repo_id": "website",
"token_count": 162
} | 1,290 |
// #docregion ScrollWidgetTest
// This is a basic Flutter widget test.
//
// To perform an interaction with a widget in your test, use the WidgetTester
// utility that Flutter provides. For example, you can send tap and scroll
// gestures. You can also use WidgetTester to find child widgets in the widget
// tree, read... | website/examples/cookbook/testing/widget/scrolling/test/widget_test.dart/0 | {
"file_path": "website/examples/cookbook/testing/widget/scrolling/test/widget_test.dart",
"repo_id": "website",
"token_count": 378
} | 1,291 |
class User {
final String name;
final String email;
User(this.name, this.email);
User.fromJson(Map<String, dynamic> json)
: name = json['name'] as String,
email = json['email'] as String;
Map<String, dynamic> toJson() => {
'name': name,
'email': email,
};
}
| website/examples/development/data-and-backend/json/lib/manual/user.dart/0 | {
"file_path": "website/examples/development/data-and-backend/json/lib/manual/user.dart",
"repo_id": "website",
"token_count": 126
} | 1,292 |
// #docregion Import
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
// #enddocregion Import
class VirtualDisplayWidget extends StatelessWidget {
const VirtualDisplayWidget({super.key});
@override
// #docregion VirtualDisplayWidget
Widget build(BuildContext context) {
// Th... | website/examples/development/platform_integration/lib/platform_views/native_view_example_2.dart/0 | {
"file_path": "website/examples/development/platform_integration/lib/platform_views/native_view_example_2.dart",
"repo_id": "website",
"token_count": 244
} | 1,293 |
import 'package:flutter/material.dart';
//---------------------------- ParentWidget ----------------------------
class ParentWidget extends StatefulWidget {
const ParentWidget({super.key});
@override
State<ParentWidget> createState() => _ParentWidgetState();
}
class _ParentWidgetState extends State<ParentWidg... | website/examples/development/ui/interactive/lib/mixed.dart/0 | {
"file_path": "website/examples/development/ui/interactive/lib/mixed.dart",
"repo_id": "website",
"token_count": 928
} | 1,294 |
import 'package:flutter/material.dart';
void main() {
runApp(const FadeAppTest());
}
class FadeAppTest extends StatelessWidget {
const FadeAppTest({super.key});
// This widget is the root of your application.
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Fade Demo',
... | website/examples/get-started/flutter-for/android_devs/lib/animation.dart/0 | {
"file_path": "website/examples/get-started/flutter-for/android_devs/lib/animation.dart",
"repo_id": "website",
"token_count": 649
} | 1,295 |
import 'package:flutter/material.dart';
import 'package:flutter_gen/gen_l10n/app_localizations.dart';
class MyWidget extends StatelessWidget {
const MyWidget({super.key});
@override
Widget build(BuildContext context) {
return
// #docregion AccessString
Text(AppLocalizations.of(context)!.hell... | website/examples/get-started/flutter-for/android_devs/lib/localization_examples.dart/0 | {
"file_path": "website/examples/get-started/flutter-for/android_devs/lib/localization_examples.dart",
"repo_id": "website",
"token_count": 132
} | 1,296 |
import 'dart:async' show Future;
import 'package:flutter/services.dart' show rootBundle;
Future<String> loadAsset() async {
return await rootBundle.loadString('my-assets/data.json');
}
| website/examples/get-started/flutter-for/ios_devs/lib/asset_bundle.dart/0 | {
"file_path": "website/examples/get-started/flutter-for/ios_devs/lib/asset_bundle.dart",
"repo_id": "website",
"token_count": 62
} | 1,297 |
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
void main() {
runApp(
const App(),
);
}
class App extends StatelessWidget {
const App({
super.key,
});
@override
Widget build(BuildContext context) {
return const CupertinoApp(
home: HomePage(),
);
}
... | website/examples/get-started/flutter-for/ios_devs/lib/list.dart/0 | {
"file_path": "website/examples/get-started/flutter-for/ios_devs/lib/list.dart",
"repo_id": "website",
"token_count": 351
} | 1,298 |
import 'package:flutter/material.dart';
// #docregion Strings
class Strings {
static const String welcomeMessage = 'Welcome To Flutter';
}
// #enddocregion Strings
class MyWidget extends StatelessWidget {
const MyWidget({super.key});
@override
Widget build(BuildContext context) {
return
// #docre... | website/examples/get-started/flutter-for/ios_devs/lib/string_examples.dart/0 | {
"file_path": "website/examples/get-started/flutter-for/ios_devs/lib/string_examples.dart",
"repo_id": "website",
"token_count": 139
} | 1,299 |
// ignore_for_file: unused_import
// #docregion Imports
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:flutter/widgets.dart';
import 'package:my_widgets/my_widgets.dart';
// #enddocregion Imports
| website/examples/get-started/flutter-for/react_native_devs/lib/imports.dart/0 | {
"file_path": "website/examples/get-started/flutter-for/react_native_devs/lib/imports.dart",
"repo_id": "website",
"token_count": 87
} | 1,300 |
import 'package:flutter/material.dart';
// #docregion CustomButton
class CustomButton extends StatelessWidget {
const CustomButton(this.label, {super.key});
final String label;
@override
Widget build(BuildContext context) {
return ElevatedButton(
onPressed: () {},
child: Text(label),
);
... | website/examples/get-started/flutter-for/xamarin_devs/lib/custom_button.dart/0 | {
"file_path": "website/examples/get-started/flutter-for/xamarin_devs/lib/custom_button.dart",
"repo_id": "website",
"token_count": 207
} | 1,301 |
import 'package:flutter/material.dart';
class MyWidget extends StatelessWidget {
const MyWidget({super.key});
// #docregion Padding
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(title: const Text('Sample App')),
body: Center(
child: ElevatedButton(
... | website/examples/get-started/flutter-for/xamarin_devs/lib/padding.dart/0 | {
"file_path": "website/examples/get-started/flutter-for/xamarin_devs/lib/padding.dart",
"repo_id": "website",
"token_count": 239
} | 1,302 |
import 'package:integration_test/integration_test_driver.dart';
Future<void> main() => integrationDriver();
| website/examples/integration_test/test_driver/integration_test_driver.dart/0 | {
"file_path": "website/examples/integration_test/test_driver/integration_test_driver.dart",
"repo_id": "website",
"token_count": 32
} | 1,303 |
// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// A simple example of localizing a Flutter app written with the
// Dart intl package (see https://pub.dev/packages/intl).
//
// Spanish and English (loca... | website/examples/internationalization/intl_example/lib/main.dart/0 | {
"file_path": "website/examples/internationalization/intl_example/lib/main.dart",
"repo_id": "website",
"token_count": 1378
} | 1,304 |
Examples referenced in
["Layouts in Flutter"](https://docs.flutter.dev/ui/layout) that come from
the now-archived [Flutter Gallery](https://docs.flutter.dev/gallery).
They are mostly the same with a few updates to run standalone,
use new language features, and follow modern Dart/Flutter style.
These should eventually ... | website/examples/layout/gallery/README.md/0 | {
"file_path": "website/examples/layout/gallery/README.md",
"repo_id": "website",
"token_count": 102
} | 1,305 |
// Copyright 2019 The Flutter team. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'package:animations/animations.dart';
import 'package:flutter/material.dart';
class BottomNavigationDemo extends StatefulWidget {
const BottomNaviga... | website/examples/layout/gallery/lib/bottom_navigation_demo.dart/0 | {
"file_path": "website/examples/layout/gallery/lib/bottom_navigation_demo.dart",
"repo_id": "website",
"token_count": 2214
} | 1,306 |
// #docregion PassAppData
import 'dart:convert';
import 'dart:developer' as developer;
void main() {
var myCustomObject = MyCustomObject();
developer.log(
'log me',
name: 'my.app.category',
error: jsonEncode(myCustomObject),
);
}
// #enddocregion PassAppData
class MyCustomObject {}
| website/examples/testing/code_debugging/lib/app_data.dart/0 | {
"file_path": "website/examples/testing/code_debugging/lib/app_data.dart",
"repo_id": "website",
"token_count": 106
} | 1,307 |
import 'package:flutter/material.dart';
class ProblemWidget extends StatelessWidget {
const ProblemWidget({super.key});
@override
// #docregion Problem
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
appBar: AppBar(
title: const Text('Unbounded Width of the... | website/examples/testing/common_errors/lib/unbounded_width.dart/0 | {
"file_path": "website/examples/testing/common_errors/lib/unbounded_width.dart",
"repo_id": "website",
"token_count": 411
} | 1,308 |
import 'package:flutter/material.dart';
void main() => runApp(const MyApp());
class MyApp extends StatelessWidget {
const MyApp({super.key});
@override
Widget build(BuildContext context) {
return const MaterialApp(
title: 'Counter App',
home: MyHomePage(title: 'Counter App Home Page'),
);
... | website/examples/testing/integration_tests/how_to/lib/main.dart/0 | {
"file_path": "website/examples/testing/integration_tests/how_to/lib/main.dart",
"repo_id": "website",
"token_count": 642
} | 1,309 |
import 'package:bitsdojo_window/bitsdojo_window.dart';
import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import '../app_model.dart';
import '../global/device_type.dart';
class AppTitleBar extends StatelessWidget {
const AppTitleBar({super.key});
@override
Widget build(BuildContex... | website/examples/ui/layout/adaptive_app_demos/lib/widgets/app_title_bar.dart/0 | {
"file_path": "website/examples/ui/layout/adaptive_app_demos/lib/widgets/app_title_bar.dart",
"repo_id": "website",
"token_count": 1045
} | 1,310 |
- name: Get started
description: Set up your environment and start building.
url: /get-started/install
- name: Widget catalog
description: Dip into the rich set of Flutter widgets available in the SDK.
url: /ui/widgets
- name: API docs
description: Bookmark the API reference docs for the Flutter framework.
... | website/src/_data/docs_cards.yml/0 | {
"file_path": "website/src/_data/docs_cards.yml",
"repo_id": "website",
"token_count": 193
} | 1,311 |
{{site.alert.important}}
If you develop apps in China, check out [using Flutter in China][].
{{site.alert.end}}
[using Flutter in China]: /community/china
| website/src/_includes/docs/china-notice.md/0 | {
"file_path": "website/src/_includes/docs/china-notice.md",
"repo_id": "website",
"token_count": 49
} | 1,312 |
## Manage your Flutter SDK
To learn more about managing your Flutter SDK install,
consult the following resources.
{% assign doctor = site.data.doctor %}
{% assign config = site.data.doctor[include.config] %}
{% assign target = include.target | remove: 'mobile-' | downcase %}
{% assign devos = include.devos %}
{% if ... | website/src/_includes/docs/install/next-steps.md/0 | {
"file_path": "website/src/_includes/docs/install/next-steps.md",
"repo_id": "website",
"token_count": 657
} | 1,313 |
{% assign target = include.target %}
{% assign os = include.os %}
{% include docs/install/admonitions/install-in-order.md %}
## Verify system requirements
To install and run Flutter,
your {{os}} environment must meet the following hardware
and software requirements.
### Hardware requirements
Your {{os}} Flutter de... | website/src/_includes/docs/install/reqs/windows/base.md/0 | {
"file_path": "website/src/_includes/docs/install/reqs/windows/base.md",
"repo_id": "website",
"token_count": 1223
} | 1,314 |
## Profile or release runs
{{site.alert.important}}
Do _not_ test the performance of your app with debug and
hot reload enabled.
{{site.alert.end}}
So far you've been running your app in *debug* mode. Debug
mode trades performance for useful developer features such
as hot reload and step debugging. It's not unexp... | website/src/_includes/docs/run-profile.md/0 | {
"file_path": "website/src/_includes/docs/run-profile.md",
"repo_id": "website",
"token_count": 216
} | 1,315 |
require_relative 'code_excerpt_processor'
module Jekyll
module Converters
# This converter does some markdown preprocessing before using [Kramdown] to
# do the full markdown conversion (to HTML).
#
# Currently, the only preprocessing that is done is for code-excerpt
# instructions. See [code_exc... | website/src/_plugins/markdown_with_code_excerpts.rb/0 | {
"file_path": "website/src/_plugins/markdown_with_code_excerpts.rb",
"repo_id": "website",
"token_count": 554
} | 1,316 |
@use '../base/variables' as *;
@use '../vendor/bootstrap';
.site-footer {
background-color: $site-color-footer;
color: $site-color-white;
padding: bootstrap.bs-spacer(5) 0;
position: relative;
z-index: bootstrap.$zindex-sticky;
&__wrapper {
align-items: center;
display: flex;
flex-direction: c... | website/src/_sass/components/_footer.scss/0 | {
"file_path": "website/src/_sass/components/_footer.scss",
"repo_id": "website",
"token_count": 455
} | 1,317 |
---
layout: toc
title: Add Flutter to Android
description: Content covering adding Flutter to existing Android apps.
---
| website/src/add-to-app/android/index.md/0 | {
"file_path": "website/src/add-to-app/android/index.md",
"repo_id": "website",
"token_count": 30
} | 1,318 |
<svg fill="#000000" height="24" viewBox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg">
<path d="M0 0h24v24H0z" fill="none"/>
<path d="M23 12l-2.44-2.78.34-3.68-3.61-.82-1.89-3.18L12 3 8.6 1.54 6.71 4.72l-3.61.81.34 3.68L1 12l2.44 2.78-.34 3.69 3.61.82 1.89 3.18L12 21l3.4 1.46 1.89-3.18 3.61-.82-.34-... | website/src/assets/images/docs/ic_new_releases_black_24px.svg/0 | {
"file_path": "website/src/assets/images/docs/ic_new_releases_black_24px.svg",
"repo_id": "website",
"token_count": 223
} | 1,319 |
---
title: "Implicit animations"
description: >
Learn how to use Flutter's implicitly animated widgets
through interactive examples and exercises.
toc: true
diff2html: true
js:
- defer: true
url: https://old-dartpad-3ce3f.web.app/inject_embed.dart.js
- defer: true
url: /assets/js/codelabs/animations_exa... | website/src/codelabs/implicit-animations.md/0 | {
"file_path": "website/src/codelabs/implicit-animations.md",
"repo_id": "website",
"token_count": 5363
} | 1,320 |
---
title: Display a snackbar
description: How to implement a snackbar to display messages.
js:
- defer: true
url: https://old-dartpad-3ce3f.web.app/inject_embed.dart.js
---
<?code-excerpt path-base="cookbook/design/snackbars/"?>
It can be useful to briefly inform your users when certain actions
take place. For... | website/src/cookbook/design/snackbars.md/0 | {
"file_path": "website/src/cookbook/design/snackbars.md",
"repo_id": "website",
"token_count": 1661
} | 1,321 |
---
title: Retrieve the value of a text field
description: How to retrieve text from a text field.
js:
- defer: true
url: https://old-dartpad-3ce3f.web.app/inject_embed.dart.js
---
<?code-excerpt path-base="cookbook/forms/retrieve_input"?>
In this recipe,
learn how to retrieve the text a user has entered into a... | website/src/cookbook/forms/retrieve-input.md/0 | {
"file_path": "website/src/cookbook/forms/retrieve-input.md",
"repo_id": "website",
"token_count": 1845
} | 1,322 |
---
title: Cookbook
description: >
The Flutter cookbook provides recipes for many commonly performed tasks.
show_breadcrumbs: false
---
This cookbook contains recipes that demonstrate how to solve common problems
while writing Flutter apps. Each recipe is self-contained and can be used as a
reference to help you bu... | website/src/cookbook/index.md/0 | {
"file_path": "website/src/cookbook/index.md",
"repo_id": "website",
"token_count": 1649
} | 1,323 |
---
title: Send data to a new screen
description: How to pass data to a new route.
js:
- defer: true
url: https://old-dartpad-3ce3f.web.app/inject_embed.dart.js
---
<?code-excerpt path-base="cookbook/navigation/passing_data"?>
Often, you not only want to navigate to a new screen,
but also pass data to the scree... | website/src/cookbook/navigation/passing-data.md/0 | {
"file_path": "website/src/cookbook/navigation/passing-data.md",
"repo_id": "website",
"token_count": 4644
} | 1,324 |
---
title: Add ads to your mobile Flutter app or game
short-title: Show ads
description: How to use the google_mobile_ads package to show ads in Flutter.
---
<?code-excerpt path-base="cookbook/plugins/google_mobile_ads"?>
{% comment %}
This partly duplicates the AdMob documentation
here: https://developers.google... | website/src/cookbook/plugins/google-mobile-ads.md/0 | {
"file_path": "website/src/cookbook/plugins/google-mobile-ads.md",
"repo_id": "website",
"token_count": 4659
} | 1,325 |
---
title: Who is Dash?
description: Learn more about the Flutter and Dart mascot, Dash.
---
This is Dash:
{:width="50%"}<br>
Dash is the mascot for the Dart language and the Flutter framework.
{{site.alert.note}}
You can now make your **own** digital Dash using
[... | website/src/dash/index.md/0 | {
"file_path": "website/src/dash/index.md",
"repo_id": "website",
"token_count": 1922
} | 1,326 |
---
title: Create flavors of a Flutter app
short-title: Flavors
description: >
How to create build flavors specific to different
release types or development environments.
---
## What are flavors
Have you ever wondered how to set up different environments in your Flutter app?
Flavors (known as _build configuratio... | website/src/deployment/flavors.md/0 | {
"file_path": "website/src/deployment/flavors.md",
"repo_id": "website",
"token_count": 3140
} | 1,327 |
---
title: Introduction to declarative UI
short-title: Declarative UI
description: Explains the difference between a declarative and imperative programming style.
---
<?code-excerpt path-base="get-started/flutter-for/declarative"?>
_This introduction describes the conceptual difference between the
declarative style u... | website/src/get-started/flutter-for/declarative.md/0 | {
"file_path": "website/src/get-started/flutter-for/declarative.md",
"repo_id": "website",
"token_count": 683
} | 1,328 |
## Android setup
{{site.alert.note}}
Flutter relies on a full installation of Android Studio to supply
its Android platform dependencies. However, you can write your
Flutter apps in a number of editors; a later step discusses that.
{{site.alert.end}}
### Install Android Studio
{% include_relative _help-link.md... | website/src/get-started/install/_deprecated/_android-setup.md/0 | {
"file_path": "website/src/get-started/install/_deprecated/_android-setup.md",
"repo_id": "website",
"token_count": 1251
} | 1,329 |
---
title: Choose your development platform to get started
short-title: Install
description: Install Flutter and get started. Downloads available for Windows, macOS, Linux, and ChromeOS operating systems.
os-list: [Windows, macOS, Linux, ChromeOS]
---
<div class="card-deck mb-8">
{% for os in page.os-list %}
<a clas... | website/src/get-started/install/index.md/0 | {
"file_path": "website/src/get-started/install/index.md",
"repo_id": "website",
"token_count": 348
} | 1,330 |
---
title: Uninstall Flutter
description: How to remove the Flutter SDK.
toc: true
os-list: [Windows, macOS, Linux, ChromeOS]
---
To remove all of Flutter from your {{os}} development machine,
delete the directories that store Flutter and its configuration files.
## Uninstall the Flutter SDK
Select your development ... | website/src/get-started/uninstall/index.md/0 | {
"file_path": "website/src/get-started/uninstall/index.md",
"repo_id": "website",
"token_count": 1624
} | 1,331 |
---
title: Concurrency and isolates
description: Multithreading in Flutter using Dart isolates.
---
<?code-excerpt path-base="development/concurrency/isolates/"?>
All Dart code runs in [isolates]({{site.dart-site}}/language/concurrency),
which are similar to threads,
but differ in that isolates have their own isolate... | website/src/perf/isolates.md/0 | {
"file_path": "website/src/perf/isolates.md",
"repo_id": "website",
"token_count": 3831
} | 1,332 |
---
title: Add Android devtools for Flutter from Web on Windows start
description: Configure your Windows system to develop Flutter mobile apps for Android.
short-title: Starting from Web on Windows
---
To add Android as a Flutter app target for Windows, follow this procedure.
## Install Android Studio
1. Allocate a... | website/src/platform-integration/android/install-android/install-android-from-web-on-windows.md/0 | {
"file_path": "website/src/platform-integration/android/install-android/install-android-from-web-on-windows.md",
"repo_id": "website",
"token_count": 254
} | 1,333 |
---
title: iOS debugging
description: iOS-specific debugging techniques for Flutter apps
---
Due to security around
[local network permissions in iOS 14 or later][],
you must accept a permission dialog box to enable
Flutter debugging functionalities such as hot-reload
and DevTools.
 as a comp... | website/src/platform-integration/web/wasm.md/0 | {
"file_path": "website/src/platform-integration/web/wasm.md",
"repo_id": "website",
"token_count": 2825
} | 1,336 |
---
title: Archive of What's new
description: >-
A list of previous what's new updates on docs.flutter.dev
and related documentation sites.
---
This page contains of archived announcements of
what's new on the Flutter website and blog.
For information on the latest releases,
check out the [current what's new][] pa... | website/src/release/archive-whats-new.md/0 | {
"file_path": "website/src/release/archive-whats-new.md",
"repo_id": "website",
"token_count": 20725
} | 1,337 |
---
title: Android ActivityControlSurface attachToActivity signature change
description: >
attachToActivity activity parameter changed to
ExclusiveAppComponent instead of Activity.
---
## Summary
{{site.alert.note}}
If you use standard Android embedding Java classes like
[`FlutterActivity`][] or [`FlutterFrag... | website/src/release/breaking-changes/android-activity-control-surface-attach.md/0 | {
"file_path": "website/src/release/breaking-changes/android-activity-control-surface-attach.md",
"repo_id": "website",
"token_count": 1284
} | 1,338 |
---
title: Deprecate textScaleFactor in favor of TextScaler
description: >-
The new class, TextScaler, replaces the textScaleFactor scalar in
preparation for Android 14 nonlinear text scaling support.
---
## Summary
In preparation for adopting the [Android 14 nonlinear font scaling][] feature,
all occurrences of... | website/src/release/breaking-changes/deprecate-textscalefactor.md/0 | {
"file_path": "website/src/release/breaking-changes/deprecate-textscalefactor.md",
"repo_id": "website",
"token_count": 4121
} | 1,339 |
---
title: More Strict Assertions in the Navigator and the Hero Controller Scope
description: >
Added additional assertions to guarantee that
one hero controller scope can only subscribe to one navigator at a time.
---
## Summary
The framework throws an assertion error when it detects there are
multiple navigator... | website/src/release/breaking-changes/hero-controller-scope.md/0 | {
"file_path": "website/src/release/breaking-changes/hero-controller-scope.md",
"repo_id": "website",
"token_count": 1716
} | 1,340 |
---
title: Transition of platform channel test interfaces to flutter_test package
description: >
The setMockMessageHandler method related APIs have
moved from package:flutter to package:flutter_test
---
## Summary
The following methods have been replaced by APIs
in the `flutter_test` package:
* `BinaryMessenge... | website/src/release/breaking-changes/mock-platform-channels.md/0 | {
"file_path": "website/src/release/breaking-changes/mock-platform-channels.md",
"repo_id": "website",
"token_count": 1896
} | 1,341 |
---
title: Raw images on Web uses correct origin and colors
description: >
Raw images directly decoded by calling the Web engine functions now
uses the correct pixel format and starts from the top left corner.
---
## Summary
How raw images are rendered on Web has been corrected
and is now consistent with that on ... | website/src/release/breaking-changes/raw-images-on-web-uses-correct-origin-and-colors.md/0 | {
"file_path": "website/src/release/breaking-changes/raw-images-on-web-uses-correct-origin-and-colors.md",
"repo_id": "website",
"token_count": 2048
} | 1,342 |
---
title: Adding 'linux' and 'windows' to TargetPlatform enum
description: >
Two new values were added to the TargetPlatform enum that could
require additional cases in switch statements that switch on a TargetPlatform.
---
## Summary
Two new values were added to the [`TargetPlatform`][] enum
that could require ... | website/src/release/breaking-changes/target-platform-linux-windows.md/0 | {
"file_path": "website/src/release/breaking-changes/target-platform-linux-windows.md",
"repo_id": "website",
"token_count": 1331
} | 1,343 |
---
title: Migrate a Windows project to the idiomatic run loop
description: How to update a Windows project to use the idiomatic run loop
---
Flutter 2.5 replaced Windows apps' run loop with an idiomatic
Windows message pump to reduce CPU usage.
Projects created before Flutter version 2.5 need to be
migrated to get t... | website/src/release/breaking-changes/windows-run-loop.md/0 | {
"file_path": "website/src/release/breaking-changes/windows-run-loop.md",
"repo_id": "website",
"token_count": 376
} | 1,344 |
---
title: Flutter 1.20.0 release notes
short-title: 1.20.0 release notes
description: Release notes for Flutter 1.20.0.
---
## Merged pull requests by label
### Merged PRs by labels for `flutter/flutter`
#### tool - 435 pull request(s)
[50581](https://github.com/flutter/flutter/pull/50581) Implements --machine f... | website/src/release/release-notes/release-notes-1.20.0.md/0 | {
"file_path": "website/src/release/release-notes/release-notes-1.20.0.md",
"repo_id": "website",
"token_count": 244668
} | 1,345 |
```nocode
flutter: FocusManager#9d096
flutter: │ primaryFocus: FocusScopeNode#926dc(_ModalScopeState<dynamic>
flutter: │ Focus Scope [PRIMARY FOCUS])
flutter: │ primaryFocusCreator: FocusScope ← PrimaryScrollController ←
flutter: │ _ActionsScope ← Actions ← Builder ← PageStorage ← Offstage ←
flutter: │ _Moda... | website/src/testing/trees/focus-tree.md/0 | {
"file_path": "website/src/testing/trees/focus-tree.md",
"repo_id": "website",
"token_count": 1766
} | 1,346 |
---
title: Install and run DevTools from Android Studio
description: Learn how to install and use DevTools from Android Studio.
---
## Install the Flutter plugin
Install the Flutter plugin if you don't already have it installed.
This can be done using the normal **Plugins** page in the IntelliJ
and Android Studio set... | website/src/tools/devtools/android-studio.md/0 | {
"file_path": "website/src/tools/devtools/android-studio.md",
"repo_id": "website",
"token_count": 471
} | 1,347 |
# DevTools 2.12.2 release notes
The 2.12.2 release of the Dart and Flutter DevTools
includes the following changes among other general improvements.
To learn more about DevTools, check out the
[DevTools overview](https://docs.flutter.dev/tools/devtools/overview).
## General updates
* Recover from missing trace event... | website/src/tools/devtools/release-notes/release-notes-2.12.2-src.md/0 | {
"file_path": "website/src/tools/devtools/release-notes/release-notes-2.12.2-src.md",
"repo_id": "website",
"token_count": 169
} | 1,348 |
# DevTools 2.20.0 release notes
The 2.20.0 release of the Dart and Flutter DevTools
includes the following changes among other general improvements.
To learn more about DevTools, check out the
[DevTools overview](https://docs.flutter.dev/tools/devtools/overview).
## CPU profiler updates
* Add support for grouping sa... | website/src/tools/devtools/release-notes/release-notes-2.20.0-src.md/0 | {
"file_path": "website/src/tools/devtools/release-notes/release-notes-2.20.0-src.md",
"repo_id": "website",
"token_count": 724
} | 1,349 |
# DevTools 2.28.1 release notes
The 2.28.1 release of the Dart and Flutter DevTools
includes the following changes among other general improvements.
To learn more about DevTools, check out the
[DevTools overview](https://docs.flutter.dev/tools/devtools/overview).
## General updates
* Added support for DevTools exten... | website/src/tools/devtools/release-notes/release-notes-2.28.1-src.md/0 | {
"file_path": "website/src/tools/devtools/release-notes/release-notes-2.28.1-src.md",
"repo_id": "website",
"token_count": 647
} | 1,350 |
# DevTools 2.32.0 release notes
The 2.32.0 release of the Dart and Flutter DevTools
includes the following changes among other general improvements.
To learn more about DevTools, check out the
[DevTools overview](https://docs.flutter.dev/tools/devtools/overview).
## General updates
* Improved overall usability by ma... | website/src/tools/devtools/release-notes/release-notes-2.32.0-src.md/0 | {
"file_path": "website/src/tools/devtools/release-notes/release-notes-2.32.0-src.md",
"repo_id": "website",
"token_count": 877
} | 1,351 |
---
title: Hot reload
description: Speed up development using Flutter's hot reload feature.
---
<?code-excerpt path-base="development/tools"?>
Flutter's hot reload feature helps you quickly and
easily experiment, build UIs, add features, and fix bugs.
Hot reload works by injecting updated source code files
into the r... | website/src/tools/hot-reload.md/0 | {
"file_path": "website/src/tools/hot-reload.md",
"repo_id": "website",
"token_count": 3650
} | 1,352 |
---
layout: toc
title: Assets & media
description: Content covering incorporating assets and media in Flutter apps.
---
| website/src/ui/assets/index.md/0 | {
"file_path": "website/src/ui/assets/index.md",
"repo_id": "website",
"token_count": 29
} | 1,353 |
---
layout: toc
title: Lists & grids
description: Content covering adding lists and grids of items to Flutter apps.
sitemap: false
---
| website/src/ui/layout/lists/index.md/0 | {
"file_path": "website/src/ui/layout/lists/index.md",
"repo_id": "website",
"token_count": 37
} | 1,354 |
---
title: Widget catalog
description: A catalog of some of Flutter's rich set of widgets.
short-title: Widgets
---
Create beautiful apps faster with Flutter's collection of visual, structural,
platform, and interactive widgets. In addition to browsing widgets by category,
you can also see all the widgets in the [widg... | website/src/ui/widgets/index.md/0 | {
"file_path": "website/src/ui/widgets/index.md",
"repo_id": "website",
"token_count": 1254
} | 1,355 |
// Copyright 2024 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'dart:io';
import 'package:args/command_runner.dart';
import 'package:path/path.dart' as path;
final class CheckLinkReferencesCommand extends Comm... | website/tool/flutter_site/lib/src/commands/check_link_references.dart/0 | {
"file_path": "website/tool/flutter_site/lib/src/commands/check_link_references.dart",
"repo_id": "website",
"token_count": 1427
} | 1,356 |
// Copyright 2022 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'package:flutter/material.dart';
import 'package:googleapis/youtube/v3.dart';
import 'package:provider/provider.dart';
import 'package:url_launcher/... | codelabs/adaptive_app/step_04/lib/src/playlist_details.dart/0 | {
"file_path": "codelabs/adaptive_app/step_04/lib/src/playlist_details.dart",
"repo_id": "codelabs",
"token_count": 1948
} | 0 |
#include "../../Flutter/Flutter-Debug.xcconfig"
#include "Warnings.xcconfig"
| codelabs/adaptive_app/step_04/macos/Runner/Configs/Debug.xcconfig/0 | {
"file_path": "codelabs/adaptive_app/step_04/macos/Runner/Configs/Debug.xcconfig",
"repo_id": "codelabs",
"token_count": 32
} | 1 |
import 'package:adaptive_app/main.dart';
import 'package:adaptive_app/src/app_state.dart';
import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:googleapis/youtube/v3.dart';
import 'package:http/src/client.dart';
import 'package:provider/provider.dart';
class FakeAuth... | codelabs/adaptive_app/step_07/test/widget_test.dart/0 | {
"file_path": "codelabs/adaptive_app/step_07/test/widget_test.dart",
"repo_id": "codelabs",
"token_count": 333
} | 2 |
#include "Generated.xcconfig"
| codelabs/animated-responsive-layout/step_04/ios/Flutter/Debug.xcconfig/0 | {
"file_path": "codelabs/animated-responsive-layout/step_04/ios/Flutter/Debug.xcconfig",
"repo_id": "codelabs",
"token_count": 12
} | 3 |
// Copyright 2022 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'models.dart';
final User user_0 = User(
name: const Name(first: 'Me', last: ''),
avatarUrl: 'assets/avatar_1.png',
lastActive: DateTim... | codelabs/animated-responsive-layout/step_06/lib/models/data.dart/0 | {
"file_path": "codelabs/animated-responsive-layout/step_06/lib/models/data.dart",
"repo_id": "codelabs",
"token_count": 1197
} | 4 |
# MyArtist
A music player app where fans can keep up to date with their favorite artists.
## Getting started
This is a companion Flutter app to go along with the [Take your Flutter
app from boring to beautiful](#) codelab. This codelab guides you
step-by-step through modifying MyArtist's design to look beautiful acr... | codelabs/boring_to_beautiful/README.md/0 | {
"file_path": "codelabs/boring_to_beautiful/README.md",
"repo_id": "codelabs",
"token_count": 1097
} | 5 |
// Copyright 2022 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'package:flutter/material.dart';
import 'package:url_launcher/url_launcher.dart';
import '../../../shared/classes/classes.dart';
import '../../../... | codelabs/boring_to_beautiful/final/lib/src/features/artists/view/artist_events.dart/0 | {
"file_path": "codelabs/boring_to_beautiful/final/lib/src/features/artists/view/artist_events.dart",
"repo_id": "codelabs",
"token_count": 1907
} | 6 |
// Copyright 2022 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'package:flutter/material.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
import '../../../shared/classes/classes.dart';
import '../../../s... | codelabs/boring_to_beautiful/final/lib/src/features/playlists/view/playlist_songs.dart/0 | {
"file_path": "codelabs/boring_to_beautiful/final/lib/src/features/playlists/view/playlist_songs.dart",
"repo_id": "codelabs",
"token_count": 1218
} | 7 |
// Copyright 2022 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
part of 'playback_bloc.dart';
@Freezed()
class PlaybackState with _$PlaybackState {
const factory PlaybackState({
/// Legal values are between 0 and... | codelabs/boring_to_beautiful/final/lib/src/shared/playback/bloc/playback_state.dart/0 | {
"file_path": "codelabs/boring_to_beautiful/final/lib/src/shared/playback/bloc/playback_state.dart",
"repo_id": "codelabs",
"token_count": 285
} | 8 |
// Copyright 2022 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'package:flutter/material.dart';
class HoverToggle extends StatefulWidget {
const HoverToggle({
super.key,
required this.child,
requi... | codelabs/boring_to_beautiful/final/lib/src/shared/views/hover_toggle.dart/0 | {
"file_path": "codelabs/boring_to_beautiful/final/lib/src/shared/views/hover_toggle.dart",
"repo_id": "codelabs",
"token_count": 562
} | 9 |
name: myartist
description: A new Flutter project.
publish_to: "none"
version: 1.0.0
environment:
sdk: ^3.2.0
dependencies:
adaptive_breakpoints: ^0.1.7
adaptive_components: ^0.0.10
adaptive_navigation: ^0.0.10
animations: ^2.0.11
collection: ^1.18.0
cupertino_icons: ^1.0.6
desktop_window: ^0.4.0
dy... | codelabs/boring_to_beautiful/final/pubspec.yaml/0 | {
"file_path": "codelabs/boring_to_beautiful/final/pubspec.yaml",
"repo_id": "codelabs",
"token_count": 399
} | 10 |
// Copyright 2022 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'package:flutter/material.dart';
import 'package:go_router/go_router.dart';
import '../../../shared/classes/classes.dart';
import '../../../shared/... | codelabs/boring_to_beautiful/step_01/lib/src/features/home/view/home_artists.dart/0 | {
"file_path": "codelabs/boring_to_beautiful/step_01/lib/src/features/home/view/home_artists.dart",
"repo_id": "codelabs",
"token_count": 707
} | 11 |
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