text stringlengths 6 13.6M | id stringlengths 13 176 | metadata dict | __index_level_0__ int64 0 1.69k |
|---|---|---|---|
import 'package:flutter/material.dart';
// #docregion step1
class Menu extends StatefulWidget {
const Menu({super.key});
@override
State<Menu> createState() => _MenuState();
}
class _MenuState extends State<Menu> {
static const _menuTitles = [
'Declarative Style',
'Premade Widgets',
'Stateful Hot... | website/examples/cookbook/effects/staggered_menu_animation/lib/step1.dart/0 | {
"file_path": "website/examples/cookbook/effects/staggered_menu_animation/lib/step1.dart",
"repo_id": "website",
"token_count": 1021
} | 1,439 |
import 'package:flutter/material.dart';
// Define a custom Form widget.
class MyCustomForm extends StatefulWidget {
const MyCustomForm({super.key});
@override
State<MyCustomForm> createState() => _MyCustomFormState();
}
// Define a corresponding State class.
// This class holds data related to the form.
class ... | website/examples/cookbook/forms/focus/lib/step3.dart/0 | {
"file_path": "website/examples/cookbook/forms/focus/lib/step3.dart",
"repo_id": "website",
"token_count": 660
} | 1,440 |
import 'package:flutter/material.dart';
// Define a custom Form widget.
class MyCustomForm extends StatefulWidget {
const MyCustomForm({super.key});
@override
MyCustomFormState createState() {
return MyCustomFormState();
}
}
// Define a corresponding State class.
// This class holds data related to the f... | website/examples/cookbook/forms/validation/lib/form.dart/0 | {
"file_path": "website/examples/cookbook/forms/validation/lib/form.dart",
"repo_id": "website",
"token_count": 302
} | 1,441 |
name: firestore_multiplayer
description: Firestore multiplayer
environment:
sdk: ^3.3.0
dependencies:
flutter:
sdk: flutter
async: ^2.11.0
cloud_firestore: ^4.15.4
firebase_core: ^2.25.4
logging: ^1.2.0
provider: ^6.1.1
dev_dependencies:
example_utils:
path: ../../../example_utils
flutter:
... | website/examples/cookbook/games/firestore_multiplayer/pubspec.yaml/0 | {
"file_path": "website/examples/cookbook/games/firestore_multiplayer/pubspec.yaml",
"repo_id": "website",
"token_count": 144
} | 1,442 |
import 'package:flutter/cupertino.dart';
void main() {
runApp(const CupertinoApp(
title: 'Navigation Basics',
home: FirstRoute(),
));
}
class FirstRoute extends StatelessWidget {
const FirstRoute({super.key});
@override
Widget build(BuildContext context) {
return CupertinoPageScaffold(
na... | website/examples/cookbook/navigation/navigation_basics/lib/main_cupertino.dart/0 | {
"file_path": "website/examples/cookbook/navigation/navigation_basics/lib/main_cupertino.dart",
"repo_id": "website",
"token_count": 522
} | 1,443 |
import 'dart:async';
import 'dart:io';
import 'package:flutter/material.dart';
import 'package:path_provider/path_provider.dart';
void main() {
runApp(
MaterialApp(
title: 'Reading and Writing Files',
home: FlutterDemo(storage: CounterStorage()),
),
);
}
class CounterStorage {
// #docregion... | website/examples/cookbook/persistence/reading_writing_files/lib/main.dart/0 | {
"file_path": "website/examples/cookbook/persistence/reading_writing_files/lib/main.dart",
"repo_id": "website",
"token_count": 869
} | 1,444 |
name: picture_using_camera
description: A new Flutter project.
environment:
sdk: ^3.3.0
dependencies:
flutter:
sdk: flutter
camera: ^0.10.5+6
path_provider: ^2.1.2
path: ^1.9.0
dev_dependencies:
example_utils:
path: ../../../example_utils
flutter:
uses-material-design: true
| website/examples/cookbook/plugins/picture_using_camera/pubspec.yaml/0 | {
"file_path": "website/examples/cookbook/plugins/picture_using_camera/pubspec.yaml",
"repo_id": "website",
"token_count": 126
} | 1,445 |
import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
// #docregion main
void main() {
testWidgets('MyWidget has a title and message', (tester) async {
// Create the widget by telling the tester to build it.
await tester.pumpWidget(const MyWidget(title: 'T', message: 'M'));... | website/examples/cookbook/testing/widget/introduction/test/main_step4_test.dart/0 | {
"file_path": "website/examples/cookbook/testing/widget/introduction/test/main_step4_test.dart",
"repo_id": "website",
"token_count": 319
} | 1,446 |
name: json
description: Sample state management code.
publish_to: none
version: 1.0.0+1
environment:
sdk: ^3.3.0
dependencies:
json_annotation: ^4.8.1
dev_dependencies:
example_utils:
path: ../../../example_utils
build_runner: ^2.4.8
json_serializable: ^6.7.1
| website/examples/development/data-and-backend/json/pubspec.yaml/0 | {
"file_path": "website/examples/development/data-and-backend/json/pubspec.yaml",
"repo_id": "website",
"token_count": 114
} | 1,447 |
import 'package:flutter/material.dart';
// #docregion WelcomeScreen
class WelcomeScreen extends StatelessWidget {
const WelcomeScreen({super.key});
@override
Widget build(BuildContext context) {
return Scaffold(
body: Center(
child: Text(
'Welcome!',
style: Theme.of(context... | website/examples/get-started/codelab_web/lib/step1.dart/0 | {
"file_path": "website/examples/get-started/codelab_web/lib/step1.dart",
"repo_id": "website",
"token_count": 1543
} | 1,448 |
import 'dart:async';
import 'dart:convert';
import 'dart:isolate';
import 'package:flutter/material.dart';
import 'package:http/http.dart' as http;
void main() {
runApp(const SampleApp());
}
class SampleApp extends StatelessWidget {
const SampleApp({super.key});
@override
Widget build(BuildContext context) ... | website/examples/get-started/flutter-for/android_devs/lib/isolates.dart/0 | {
"file_path": "website/examples/get-started/flutter-for/android_devs/lib/isolates.dart",
"repo_id": "website",
"token_count": 1045
} | 1,449 |
import 'package:flutter/material.dart';
void main() {
runApp(const SampleApp());
}
class SampleApp extends StatelessWidget {
const SampleApp({super.key});
// This widget is the root of your application.
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Sample App',
t... | website/examples/get-started/flutter-for/android_devs/lib/validation_errors.dart/0 | {
"file_path": "website/examples/get-started/flutter-for/android_devs/lib/validation_errors.dart",
"repo_id": "website",
"token_count": 806
} | 1,450 |
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/grid.dart/0 | {
"file_path": "website/examples/get-started/flutter-for/ios_devs/lib/grid.dart",
"repo_id": "website",
"token_count": 405
} | 1,451 |
import 'dart:convert';
import 'package:flutter/material.dart';
import 'package:http/http.dart' as http;
void main() {
runApp(const SampleApp());
}
class SampleApp extends StatelessWidget {
const SampleApp({super.key});
@override
Widget build(BuildContext context) {
return const MaterialApp(
title:... | website/examples/get-started/flutter-for/ios_devs/lib/progress.dart/0 | {
"file_path": "website/examples/get-started/flutter-for/ios_devs/lib/progress.dart",
"repo_id": "website",
"token_count": 665
} | 1,452 |
import 'package:flutter/material.dart';
void main() {
runApp(const Center(child: LogoFade()));
}
class LogoFade extends StatefulWidget {
const LogoFade({super.key});
@override
State<LogoFade> createState() => _LogoFadeState();
}
class _LogoFadeState extends State<LogoFade>
with SingleTickerProviderState... | website/examples/get-started/flutter-for/react_native_devs/lib/animation.dart/0 | {
"file_path": "website/examples/get-started/flutter-for/react_native_devs/lib/animation.dart",
"repo_id": "website",
"token_count": 412
} | 1,453 |
name: my_widgets
description: A library for `react_native_devs` to import.
version: 1.0.0
environment:
sdk: ^3.3.0
dev_dependencies:
example_utils:
path: ../../../../example_utils
| website/examples/get-started/flutter-for/react_native_devs/my_widgets/pubspec.yaml/0 | {
"file_path": "website/examples/get-started/flutter-for/react_native_devs/my_widgets/pubspec.yaml",
"repo_id": "website",
"token_count": 81
} | 1,454 |
import 'package:flutter/material.dart';
class RowExample extends StatelessWidget {
const RowExample({super.key});
// #docregion Row
@override
Widget build(BuildContext context) {
return const Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Text('Row One'),
... | website/examples/get-started/flutter-for/xamarin_devs/lib/layouts.dart/0 | {
"file_path": "website/examples/get-started/flutter-for/xamarin_devs/lib/layouts.dart",
"repo_id": "website",
"token_count": 1125
} | 1,455 |
// Copyright 2019 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:async';
import 'dart:convert';
// #docregion authImport
import 'package:extension_google_sign_in_as_googleapis_auth/extension_google_sign_in_... | website/examples/googleapis/lib/main.dart/0 | {
"file_path": "website/examples/googleapis/lib/main.dart",
"repo_id": "website",
"token_count": 2298
} | 1,456 |
import 'package:flutter_driver/flutter_driver.dart';
import 'package:test/test.dart';
void main() {
group('end-to-end test', () {
late FlutterDriver driver;
setUpAll(() async {
// Connect to a running Flutter application instance.
driver = await FlutterDriver.connect();
});
tearDownAll(... | website/examples/integration_test_migration/test_driver/main_test.dart/0 | {
"file_path": "website/examples/integration_test_migration/test_driver/main_test.dart",
"repo_id": "website",
"token_count": 827
} | 1,457 |
{
"title": "Hola Mundo",
"@title": {
"description": "Title for the Demo application",
"type": "text"
}
}
| website/examples/internationalization/intl_example/lib/l10n/intl_es.arb/0 | {
"file_path": "website/examples/internationalization/intl_example/lib/l10n/intl_es.arb",
"repo_id": "website",
"token_count": 48
} | 1,458 |
import 'package:flutter/cupertino.dart';
void main() {
runApp(const MyApp());
}
// #docregion MyApp
class MyApp extends StatelessWidget {
const MyApp({super.key});
@override
Widget build(BuildContext context) {
return const CupertinoApp(
title: 'Flutter layout demo',
theme: CupertinoThemeData... | website/examples/layout/base/lib/cupertino.dart/0 | {
"file_path": "website/examples/layout/base/lib/cupertino.dart",
"repo_id": "website",
"token_count": 385
} | 1,459 |
# Flutter example apps
To analyze, test and run individual apps, execute the following commands from
the repo root (`$PROJECT` represents the app project path, such as
`examples/layout/lakes/step6`):
1. `flutter create --no-overwrite $PROJECT`
2. `cd $PROJECT`
3. `dart analyze`
4. `flutter test`
5. `flutter run`
To ... | website/examples/layout/lakes/interactive/README.md/0 | {
"file_path": "website/examples/layout/lakes/interactive/README.md",
"repo_id": "website",
"token_count": 159
} | 1,460 |
name: state_mgmt
description: Sample state management code.
publish_to: none
environment:
sdk: ^3.3.0
dependencies:
flutter:
sdk: flutter
provider: ^6.1.1
dev_dependencies:
example_utils:
path: ../../example_utils
flutter_test:
sdk: flutter
test: ^1.24.9
flutter:
uses-material-design: tru... | website/examples/state_mgmt/simple/pubspec.yaml/0 | {
"file_path": "website/examples/state_mgmt/simple/pubspec.yaml",
"repo_id": "website",
"token_count": 131
} | 1,461 |
import 'dart:developer';
void main() {
Timeline.startSync('interesting function');
// iWonderHowLongThisTakes();
Timeline.finishSync();
}
| website/examples/testing/code_debugging/lib/perf_trace.dart/0 | {
"file_path": "website/examples/testing/code_debugging/lib/perf_trace.dart",
"repo_id": "website",
"token_count": 46
} | 1,462 |
// ignore_for_file: directives_ordering
import './error_handler.dart';
// #docregion Main
import 'package:flutter/material.dart';
import 'dart:ui';
Future<void> main() async {
await myErrorsHandler.initialize();
FlutterError.onError = (details) {
FlutterError.presentError(details);
myErrorsHandler.onError... | website/examples/testing/errors/lib/main.dart/0 | {
"file_path": "website/examples/testing/errors/lib/main.dart",
"repo_id": "website",
"token_count": 381
} | 1,463 |
name: actions_and_shortcuts
description: Sample actions and shortcuts code.
publish_to: none
environment:
sdk: ^3.3.0
dependencies:
flutter:
sdk: flutter
dev_dependencies:
example_utils:
path: ../../../example_utils
flutter:
uses-material-design: true
| website/examples/ui/advanced/actions_and_shortcuts/pubspec.yaml/0 | {
"file_path": "website/examples/ui/advanced/actions_and_shortcuts/pubspec.yaml",
"repo_id": "website",
"token_count": 101
} | 1,464 |
// ignore_for_file: prefer_const_constructors
import 'package:bitsdojo_window/bitsdojo_window.dart';
import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import 'app_model.dart';
import 'main_app_scaffold.dart';
void main() {
runApp(const AppScaffold());
// Required when using bits_d... | website/examples/ui/layout/adaptive_app_demos/lib/main.dart/0 | {
"file_path": "website/examples/ui/layout/adaptive_app_demos/lib/main.dart",
"repo_id": "website",
"token_count": 504
} | 1,465 |
import 'package:flutter/material.dart';
class CounterDisplay extends StatelessWidget {
const CounterDisplay({required this.count, super.key});
final int count;
@override
Widget build(BuildContext context) {
return Text('Count: $count');
}
}
class CounterIncrementor extends StatelessWidget {
const Co... | website/examples/ui/widgets_intro/lib/main_counterdisplay.dart/0 | {
"file_path": "website/examples/ui/widgets_intro/lib/main_counterdisplay.dart",
"repo_id": "website",
"token_count": 482
} | 1,466 |
lockfileVersion: '6.0'
settings:
autoInstallPeers: true
excludeLinksFromLockfile: false
dependencies:
bootstrap-scss:
specifier: ^4.6.2
version: 4.6.2
diff2html-cli:
specifier: ^5.2.15
version: 5.2.15
devDependencies:
firebase-tools:
specifier: ^13.4.1
version: 13.4.1
packages:
... | website/pnpm-lock.yaml/0 | {
"file_path": "website/pnpm-lock.yaml",
"repo_id": "website",
"token_count": 91411
} | 1,467 |
{{site.alert.tip}}
Each render object in any tree includes the first five
hexadecimal digits of its [`hashCode`][].
This hash serves as a unique identifier for that render object.
{{site.alert.end}}
[`hashCode`]: {{site.api}}/flutter/rendering/TextSelectionPoint/hashCode.html | website/src/_includes/docs/admonitions/tip-hashCode-tree.md/0 | {
"file_path": "website/src/_includes/docs/admonitions/tip-hashCode-tree.md",
"repo_id": "website",
"token_count": 86
} | 1,468 |
#### Build the macOS version of the Flutter app in the Terminal
To generate the needed macOS platform dependencies,
run the `flutter build` command.
```terminal
flutter build macos --debug
```
```terminal
Building macOS application...
```
{% comment %} Nav tabs {% endcomment -%}
<ul class="nav nav-tabs" id="vscode-... | website/src/_includes/docs/debug/debug-flow-macos.md/0 | {
"file_path": "website/src/_includes/docs/debug/debug-flow-macos.md",
"repo_id": "website",
"token_count": 1188
} | 1,469 |
#### Set up your target physical iOS device
To deploy your Flutter app to a physical iPhone or iPad,
you need to do the following:
- Create an [Apple Developer][] account.
- Set up physical device deployment in Xcode.
- Create a development provisioning profile to self-sign certificates.
- Install the third-party Coc... | website/src/_includes/docs/install/devices/ios-physical.md/0 | {
"file_path": "website/src/_includes/docs/install/devices/ios-physical.md",
"repo_id": "website",
"token_count": 2663
} | 1,470 |
Some Flutter components require the
[Rosetta 2 translation process][need-rosetta]
on Macs running [Apple silicon][].
To run all Flutter components on Apple silicon,
install [Rosetta 2][rosetta].
```terminal
$ sudo softwareupdate --install-rosetta --agree-to-license
```
[Apple silicon]: https://support.apple.com/en-u... | website/src/_includes/docs/install/reqs/macos/apple-silicon.md/0 | {
"file_path": "website/src/_includes/docs/install/reqs/macos/apple-silicon.md",
"repo_id": "website",
"token_count": 153
} | 1,471 |
<div class="tab-pane" id="terminal" role="tabpanel" aria-labelledby="terminal-tab" markdown="1">
### Create your sample Flutter app {#create-app}
To create a new Flutter app, run the following commands in your shell or Terminal.
1. Run the `flutter create` command.
```terminal
flutter create test_drive
```... | website/src/_includes/docs/install/test-drive/terminal.md/0 | {
"file_path": "website/src/_includes/docs/install/test-drive/terminal.md",
"repo_id": "website",
"token_count": 347
} | 1,472 |
{% comment %}
Include parameters:
- toc_content: The HTML toc content
- class: CSS classes to add to toc element.
- header: header text, default 'Contents'
If you don't want the back-to-top button style `site-toc__back-to-top` as `display: none`.
{% endcomment -%}
{% assign toc = include.toc_content -%}
{... | website/src/_includes/side-toc.html/0 | {
"file_path": "website/src/_includes/side-toc.html",
"repo_id": "website",
"token_count": 511
} | 1,473 |
# Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file
# for details. All rights reserved. Use of this source code is governed by a
# BSD-style license that can be found in the LICENSE file.
require 'liquid/tag/parser' # https://github.com/envygeeks/liquid-tag-parser
require_relative 'prettify_co... | website/src/_plugins/code_excerpt.rb/0 | {
"file_path": "website/src/_plugins/code_excerpt.rb",
"repo_id": "website",
"token_count": 696
} | 1,474 |
// THIS IS DOCS ONLY
#animation_1_play_button_ {
position: absolute;
width: 464px;
height: 192px;
z-index: 100000;
background-position: center center;
background-repeat: no-repeat;
display: block;
background-image: url("/assets/images/docs/play_button.svg");
} | website/src/_sass/components/_animations.scss/0 | {
"file_path": "website/src/_sass/components/_animations.scss",
"repo_id": "website",
"token_count": 98
} | 1,475 |
// -- Vars/config
@use 'base/variables';
@use 'base/material-colors';
// -- Vendor
@use 'vendor/bootstrap';
@use 'vendor/prettify';
// -- Base
@use 'base/base';
// -- Components
// (alpha ordered)
@use 'components/animations';
@use 'components/banner';
@use 'components/books';
@use 'components/code';
@use 'component... | website/src/_sass/site.scss/0 | {
"file_path": "website/src/_sass/site.scss",
"repo_id": "website",
"token_count": 269
} | 1,476 |
---
title: Load sequence, performance, and memory
description: What are the steps involved when showing a Flutter UI.
---
This page describes the breakdown of the steps involved
to show a Flutter UI. Knowing this, you can make better,
more informed decisions about when to pre-warm the Flutter engine,
which operations ... | website/src/add-to-app/performance.md/0 | {
"file_path": "website/src/add-to-app/performance.md",
"repo_id": "website",
"token_count": 2802
} | 1,477 |
const animation1PlayButton =
document.getElementById('animation_1_play_button_');
const animation1 =
document.getElementById("animation_1");
if (animation1PlayButton && animation1) {
animation1PlayButton.addEventListener('click', function (_) {
if (animation1.paused) {
animation1.play();
this... | website/src/assets/js/codelabs/animations_examples.js/0 | {
"file_path": "website/src/assets/js/codelabs/animations_examples.js",
"repo_id": "website",
"token_count": 261
} | 1,478 |
---
title: Animate a page route transition
description: How to animate from one page to another.
js:
- defer: true
url: https://old-dartpad-3ce3f.web.app/inject_embed.dart.js
---
<?code-excerpt path-base="cookbook/animation/page_route_animation/"?>
A design language, such as Material, defines standard behaviors... | website/src/cookbook/animation/page-route-animation.md/0 | {
"file_path": "website/src/cookbook/animation/page-route-animation.md",
"repo_id": "website",
"token_count": 3057
} | 1,479 |
---
title: Create a scrolling parallax effect
description: How to implement a scrolling parallax effect.
js:
- defer: true
url: https://old-dartpad-3ce3f.web.app/inject_embed.dart.js
---
<?code-excerpt path-base="cookbook/effects/parallax_scrolling"?>
When you scroll a list of cards (containing images,
for exam... | website/src/cookbook/effects/parallax-scrolling.md/0 | {
"file_path": "website/src/cookbook/effects/parallax-scrolling.md",
"repo_id": "website",
"token_count": 9729
} | 1,480 |
---
title: Gestures
description: A catalog of Flutter recipes for supporting gestures.
---
{% include docs/cookbook-group-index.md %}
| website/src/cookbook/gestures/index.md/0 | {
"file_path": "website/src/cookbook/gestures/index.md",
"repo_id": "website",
"token_count": 39
} | 1,481 |
---
title: Report errors to a service
description: How to keep track of errors that users encounter.
---
<?code-excerpt path-base="cookbook/maintenance/error_reporting/"?>
While one always tries to create apps that are free of bugs,
they're sure to crop up from time to time.
Since buggy apps lead to unhappy users and... | website/src/cookbook/maintenance/error-reporting.md/0 | {
"file_path": "website/src/cookbook/maintenance/error-reporting.md",
"repo_id": "website",
"token_count": 1184
} | 1,482 |
---
title: Send data to the internet
description: How to use the http package to send data over the internet.
---
<?code-excerpt path-base="cookbook/networking/send_data/"?>
Sending data to the internet is necessary for most apps.
The `http` package has got that covered, too.
This recipe uses the following steps:
... | website/src/cookbook/networking/send-data.md/0 | {
"file_path": "website/src/cookbook/networking/send-data.md",
"repo_id": "website",
"token_count": 3934
} | 1,483 |
---
title: An introduction to unit testing
description: How to write unit tests.
short-title: Introduction
---
<?code-excerpt path-base="cookbook/testing/unit/counter_app"?>
How can you ensure that your app continues to work as you
add more features or change existing functionality?
By writing tests.
Unit tests are ... | website/src/cookbook/testing/unit/introduction.md/0 | {
"file_path": "website/src/cookbook/testing/unit/introduction.md",
"repo_id": "website",
"token_count": 1654
} | 1,484 |
---
title: Differentiate between ephemeral state and app state
description: How to tell the difference between ephemeral and app state.
prev:
title: Start thinking declaratively
path: /development/data-and-backend/state-mgmt/declarative
next:
title: Simple app state management
path: /development/data-and-backen... | website/src/data-and-backend/state-mgmt/ephemeral-vs-app.md/0 | {
"file_path": "website/src/data-and-backend/state-mgmt/ephemeral-vs-app.md",
"repo_id": "website",
"token_count": 1591
} | 1,485 |
{
"_comments": [
"uniqueId must be updated with each new survey so DevTools knows to re-prompt users.",
"title should not exceed 45 characters.",
"startDate and endDate should follow ISO 8601 standard with a timezone offset."
],
"uniqueId": "2023-Q4",
"title": "Take our survey to help us improve Dev... | website/src/f/dart-devtools-survey-metadata.json/0 | {
"file_path": "website/src/f/dart-devtools-survey-metadata.json",
"repo_id": "website",
"token_count": 187
} | 1,486 |
---
title: Local caching
description: Learn how to persist data locally.
prev:
title: Networking and data
next:
title: JSON serialization
---
Now that you've learned about how to load data from servers
over the network, your Flutter app should feel more alive.
However, just because you *can* load data from remot... | website/src/get-started/fwe/local-caching.md/0 | {
"file_path": "website/src/get-started/fwe/local-caching.md",
"repo_id": "website",
"token_count": 2473
} | 1,487 |
### Update your path
You can update your PATH variable for the current session at
the command line, as shown in step 3 of [Get the Flutter SDK][].
To update this variable permanently so you can run
`flutter` commands in _any_ terminal session,
use the following instructions.
The steps for modifying the `PATH` variabl... | website/src/get-started/install/_deprecated/_path-mac.md/0 | {
"file_path": "website/src/get-started/install/_deprecated/_path-mac.md",
"repo_id": "website",
"token_count": 501
} | 1,488 |
---
title: Start building Flutter web apps on macOS
description: Configure your system to develop Flutter web apps on macOS.
short-title: Make web apps
target: web
config: macOSWeb
devos: macOS
next:
title: Create a test app
path: /get-started/test-drive
---
{% include docs/install/reqs/macos/base.md
os=page.de... | website/src/get-started/install/macos/web.md/0 | {
"file_path": "website/src/get-started/install/macos/web.md",
"repo_id": "website",
"token_count": 257
} | 1,489 |
---
title: Measuring your app's size
description: How to measure app size for iOS and Android.
---
Many developers are concerned with the size of their compiled app.
As the APK, app bundle, or IPA version of a Flutter app is
self-contained and holds all the code and assets needed to run the app,
its size can be a conc... | website/src/perf/app-size.md/0 | {
"file_path": "website/src/perf/app-size.md",
"repo_id": "website",
"token_count": 2131
} | 1,490 |
---
title: Add Android devtools for Flutter
description: Configure your system to develop Flutter for Android.
short-title: Add Android DevTools
target-list: [Windows, 'Web on Windows', Linux, 'Web on Linux', macOS, 'Web on macOS', iOS, Web on ChromeOS]
---
To choose the guide to add Android Studio to your Flutter con... | website/src/platform-integration/android/install-android/index.md/0 | {
"file_path": "website/src/platform-integration/android/install-android/index.md",
"repo_id": "website",
"token_count": 1010
} | 1,491 |
---
title: "Binding to native iOS code using dart:ffi"
description: "To use C code in your Flutter program, use the dart:ffi library."
---
<?code-excerpt path-base="development/platform_integration"?>
Flutter mobile and desktop apps can use the
[dart:ffi][] library to call native C APIs.
_FFI_ stands for [_foreign fu... | website/src/platform-integration/ios/c-interop.md/0 | {
"file_path": "website/src/platform-integration/ios/c-interop.md",
"repo_id": "website",
"token_count": 2052
} | 1,492 |
---
title: Building macOS apps with Flutter
description: Platform-specific considerations for building for macOS with Flutter.
toc: true
short-title: macOS development
---
This page discusses considerations unique to building
macOS apps with Flutter, including shell integration
and distribution of macOS apps through t... | website/src/platform-integration/macos/building.md/0 | {
"file_path": "website/src/platform-integration/macos/building.md",
"repo_id": "website",
"token_count": 1706
} | 1,493 |
---
title: Add Web devtools to Flutter from Android on macOS start
description: Configure your system to develop Flutter web apps on macOS.
short-title: Starting from Android on macOS
---
To add Web as a Flutter app target for macOS with Android,
follow this procedure.
## Configure Chrome as the web DevTools tools
{... | website/src/platform-integration/web/install-web/install-web-from-android-on-macos.md/0 | {
"file_path": "website/src/platform-integration/web/install-web/install-web-from-android-on-macos.md",
"repo_id": "website",
"token_count": 147
} | 1,494 |
---
title: "flutter: The Flutter command-line tool"
description: "The reference page for using 'flutter' in a terminal window."
---
The `flutter` command-line tool is how developers (or IDEs on behalf of
developers) interact with Flutter. For Dart related commands,
you can use the [`dart`][] command-line tool.
Here's... | website/src/reference/flutter-cli.md/0 | {
"file_path": "website/src/reference/flutter-cli.md",
"repo_id": "website",
"token_count": 1282
} | 1,495 |
---
title: Deprecated API removed after v3.3
description: >
After reaching end of life, the following deprecated APIs
were removed from Flutter.
---
## Summary
In accordance with Flutter's [Deprecation Policy][],
deprecated APIs that reached end of life after the
3.3 stable release have been removed.
All affecte... | website/src/release/breaking-changes/3-3-deprecations.md/0 | {
"file_path": "website/src/release/breaking-changes/3-3-deprecations.md",
"repo_id": "website",
"token_count": 2520
} | 1,496 |
---
title: At least one clipboard data variant must be provided
description: >
In preparation for supporting multiple clipboard data variants,
at least one clipboard data variant must be provided.
---
## Summary
The [`ClipboardData constructor`][]'s `text` argument is no longer nullable.
Code that provides `null`... | website/src/release/breaking-changes/clipboard-data-required.md/0 | {
"file_path": "website/src/release/breaking-changes/clipboard-data-required.md",
"repo_id": "website",
"token_count": 520
} | 1,497 |
---
title: Migrating from flutter_driver
description: >
Learn how to migrate existing flutter_driver tests to integration_test.
---
<?code-excerpt path-base="integration_test_migration/"?>
This page describes how to migrate an existing project using
`flutter_driver` to the `integration_test` package,
in order to ru... | website/src/release/breaking-changes/flutter-driver-migration.md/0 | {
"file_path": "website/src/release/breaking-changes/flutter-driver-migration.md",
"repo_id": "website",
"token_count": 2557
} | 1,498 |
---
title: Required Kotlin version
description: >
Flutter apps built for the Android platform
require Kotlin 1.5.31 or greater.
---
## Summary
To build a Flutter app for Android, Kotlin 1.5.31 or greater is required.
If your app uses a lower version,
you will receive the following error message:
```nocode
... | website/src/release/breaking-changes/kotlin-version.md/0 | {
"file_path": "website/src/release/breaking-changes/kotlin-version.md",
"repo_id": "website",
"token_count": 775
} | 1,499 |
---
title: Page transitions replaced by ZoomPageTransitionsBuilder
description: Using the latest page transition instead of the old one.
---
## Summary
In order to ensure that libraries follow the latest OEM behavior,
the default page transition builders now use
`ZoomPageTransitionsBuilder` on all platforms (excludin... | website/src/release/breaking-changes/page-transition-replaced-by-ZoomPageTransitionBuilder.md/0 | {
"file_path": "website/src/release/breaking-changes/page-transition-replaced-by-ZoomPageTransitionBuilder.md",
"repo_id": "website",
"token_count": 1395
} | 1,500 |
---
title: Scribble Text Input Client
description: >
Add new methods to the TextInputClient interface to allow Scribble
to insert or remove text placeholders and show the toolbar.
---
## Summary
Adds three methods, `showToolbar`, `insertTextPlaceholder`, and
`removeTextPlaceholder` to the `TextInputClient` interf... | website/src/release/breaking-changes/scribble-text-input-client.md/0 | {
"file_path": "website/src/release/breaking-changes/scribble-text-input-client.md",
"repo_id": "website",
"token_count": 780
} | 1,501 |
---
title: Accessibility traversal order of tooltip changed
description: >-
The Tooltip widget's message now immediately follows the
Tooltip widget's child during accessibility traversal.
---
## Summary
During accessibility focus traversal, `Tooltip.message` is
visited immediately after `Tooltip.child`.
## Back... | website/src/release/breaking-changes/tooltip-semantics-order.md/0 | {
"file_path": "website/src/release/breaking-changes/tooltip-semantics-order.md",
"repo_id": "website",
"token_count": 1381
} | 1,502 |
---
title: Change log for Flutter 1.7.8
short-title: 1.7.8 change log
description: Change log for Flutter 1.7.8 containing a list of all PRs merged for this release.
---
## PRs closed in this release of flutter/flutter
From Wed May 1 16:56:00 2019 -0700 to Thu Jul 18 08:04:00 2019 -0700
[28808](https://github.com... | website/src/release/release-notes/changelogs/changelog-1.7.8.md/0 | {
"file_path": "website/src/release/release-notes/changelogs/changelog-1.7.8.md",
"repo_id": "website",
"token_count": 55839
} | 1,503 |
---
title: Flutter 2.8.0 release notes
short-title: 2.8.0 release notes
description: Release notes for Flutter 2.8.0.
---
This page has release notes for 2.8.0.
For information about subsequent bug-fix releases, see
[Hotfixes to the Stable Channel][].
[Hotfixes to the Stable Channel]: https://github.com/flutter/flutte... | website/src/release/release-notes/release-notes-2.8.0.md/0 | {
"file_path": "website/src/release/release-notes/release-notes-2.8.0.md",
"repo_id": "website",
"token_count": 379392
} | 1,504 |
---
title: Create useful bug reports
description: >
Where to file bug reports and enhancement requests for
flutter and the website.
---
The instructions in this document detail the current steps
required to provide the most actionable bug reports for
crashes and other bad behavior. Each step is optional but
will ... | website/src/resources/bug-reports.md/0 | {
"file_path": "website/src/resources/bug-reports.md",
"repo_id": "website",
"token_count": 1253
} | 1,505 |
---
title: Handling errors in Flutter
description: How to control error messages and logging of errors
---
<?code-excerpt path-base="testing/errors"?>
The Flutter framework catches errors that occur during callbacks
triggered by the framework itself, including errors encountered
during the build, layout, and paint ph... | website/src/testing/errors.md/0 | {
"file_path": "website/src/testing/errors.md",
"repo_id": "website",
"token_count": 1973
} | 1,506 |
---
title: Using the Logging view
description: Learn how to use the DevTools logging view.
---
{{site.alert.note}}
The logging view works with all Flutter and Dart applications.
{{site.alert.end}}
## What is it?
The logging view displays events from the Dart runtime,
application frameworks (like Flutter), and appl... | website/src/tools/devtools/logging.md/0 | {
"file_path": "website/src/tools/devtools/logging.md",
"repo_id": "website",
"token_count": 404
} | 1,507 |
---
title: DevTools release notes
description: Learn about the latest changes in Dart and Flutter DevTools.
toc: false
---
This page summarizes the changes in official stable releases of DevTools.
To view a complete list of changes, check out the
[DevTools git log]({{site.repo.organization}}/devtools/commits/master).
... | website/src/tools/devtools/release-notes/index.md/0 | {
"file_path": "website/src/tools/devtools/release-notes/index.md",
"repo_id": "website",
"token_count": 264
} | 1,508 |
---
short-title: 2.16.0 release notes
description: Release notes for Dart and Flutter DevTools version 2.16.0.
toc: false
---
{% include_relative release-notes-2.16.0-src.md %}
| website/src/tools/devtools/release-notes/release-notes-2.16.0.md/0 | {
"file_path": "website/src/tools/devtools/release-notes/release-notes-2.16.0.md",
"repo_id": "website",
"token_count": 61
} | 1,509 |
---
short-title: 2.24.0 release notes
description: Release notes for Dart and Flutter DevTools version 2.24.0.
toc: false
---
{% include_relative release-notes-2.24.0-src.md %}
| website/src/tools/devtools/release-notes/release-notes-2.24.0.md/0 | {
"file_path": "website/src/tools/devtools/release-notes/release-notes-2.24.0.md",
"repo_id": "website",
"token_count": 61
} | 1,510 |
---
short-title: 2.28.5 release notes
description: Release notes for Dart and Flutter DevTools version 2.28.5.
toc: false
---
{% include_relative release-notes-2.28.5-src.md %}
| website/src/tools/devtools/release-notes/release-notes-2.28.5.md/0 | {
"file_path": "website/src/tools/devtools/release-notes/release-notes-2.28.5.md",
"repo_id": "website",
"token_count": 61
} | 1,511 |
---
short-title: 2.9.1 release notes
description: Release notes for Dart and Flutter DevTools version 2.9.1.
toc: false
---
{% include_relative release-notes-2.9.1-src.md %}
| website/src/tools/devtools/release-notes/release-notes-2.9.1.md/0 | {
"file_path": "website/src/tools/devtools/release-notes/release-notes-2.9.1.md",
"repo_id": "website",
"token_count": 61
} | 1,512 |
---
title: Hero animations
description: How to animate a widget to fly between two screens.
short-title: Hero
---
{{site.alert.secondary}}
<h4>What you'll learn</h4>
* The _hero_ refers to the widget that flies between screens.
* Create a hero animation using Flutter's Hero widget.
* Fly the hero from one screen to... | website/src/ui/animations/hero-animations.md/0 | {
"file_path": "website/src/ui/animations/hero-animations.md",
"repo_id": "website",
"token_count": 7276
} | 1,513 |
---
title: Understanding Flutter's keyboard focus system
description: How to use the focus system in your Flutter app.
---
This article explains how to control where keyboard input is directed. If you
are implementing an application that uses a physical keyboard, such as most
desktop and web applications, this page is... | website/src/ui/interactivity/focus.md/0 | {
"file_path": "website/src/ui/interactivity/focus.md",
"repo_id": "website",
"token_count": 7324
} | 1,514 |
---
title: Configuring the URL strategy on the web
description: Use hash or path URL strategies on the web
---
Flutter web apps support two ways of configuring
URL-based navigation on the web:
**Hash (default)**
: Paths are read and written to the [hash fragment][].
For example, `flutterexample.dev/#/path/to/screen`.... | website/src/ui/navigation/url-strategies.md/0 | {
"file_path": "website/src/ui/navigation/url-strategies.md",
"repo_id": "website",
"token_count": 751
} | 1,515 |
---
title: Text widgets
short-title: Text
description: A catalog of Flutter's widgets for displaying and styling text.
---
{% include docs/catalogpage.html category="Text" %}
| website/src/ui/widgets/text.md/0 | {
"file_path": "website/src/ui/widgets/text.md",
"repo_id": "website",
"token_count": 49
} | 1,516 |
# Contributing
_See also: [Flutter's code of conduct](https://github.com/flutter/flutter/blob/master/CODE_OF_CONDUCT.md)_
Want to contribute to the Flutter codelabs ecosystem? Great! First, read this
page (including the small print at the end).
## Is this the right place for your contribution?
This repo is used by ... | codelabs/CONTRIBUTING.md/0 | {
"file_path": "codelabs/CONTRIBUTING.md",
"repo_id": "codelabs",
"token_count": 573
} | 0 |
#include "../../Flutter/Flutter-Release.xcconfig"
#include "Warnings.xcconfig"
| codelabs/adaptive_app/step_03/macos/Runner/Configs/Release.xcconfig/0 | {
"file_path": "codelabs/adaptive_app/step_03/macos/Runner/Configs/Release.xcconfig",
"repo_id": "codelabs",
"token_count": 32
} | 1 |
// 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 'dart:io';
import 'package:flex_color_scheme/flex_color_scheme.dart';
import 'package:flutter/material.dart';
import 'package:go_router/go_router.d... | codelabs/adaptive_app/step_04/lib/main.dart/0 | {
"file_path": "codelabs/adaptive_app/step_04/lib/main.dart",
"repo_id": "codelabs",
"token_count": 912
} | 2 |
package com.example.adaptive_app
import io.flutter.embedding.android.FlutterActivity
class MainActivity: FlutterActivity()
| codelabs/adaptive_app/step_06/android/app/src/main/kotlin/com/example/adaptive_app/MainActivity.kt/0 | {
"file_path": "codelabs/adaptive_app/step_06/android/app/src/main/kotlin/com/example/adaptive_app/MainActivity.kt",
"repo_id": "codelabs",
"token_count": 36
} | 3 |
//
// Generated file. Do not edit.
//
// clang-format off
#include "generated_plugin_registrant.h"
#include <url_launcher_windows/url_launcher_windows.h>
void RegisterPlugins(flutter::PluginRegistry* registry) {
UrlLauncherWindowsRegisterWithRegistrar(
registry->GetRegistrarForPlugin("UrlLauncherWindows"))... | codelabs/adaptive_app/step_06/windows/flutter/generated_plugin_registrant.cc/0 | {
"file_path": "codelabs/adaptive_app/step_06/windows/flutter/generated_plugin_registrant.cc",
"repo_id": "codelabs",
"token_count": 112
} | 4 |
// 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 'dart:async';
import 'dart:io';
import 'package:http/http.dart' as http;
import 'package:shelf/shelf.dart';
import 'package:shelf/shelf_io.dart';
i... | codelabs/adaptive_app/step_07/yt_cors_proxy/bin/server.dart/0 | {
"file_path": "codelabs/adaptive_app/step_07/yt_cors_proxy/bin/server.dart",
"repo_id": "codelabs",
"token_count": 406
} | 5 |
#include "../../Flutter/Flutter-Release.xcconfig"
#include "Warnings.xcconfig"
| codelabs/animated-responsive-layout/step_03/macos/Runner/Configs/Release.xcconfig/0 | {
"file_path": "codelabs/animated-responsive-layout/step_03/macos/Runner/Configs/Release.xcconfig",
"repo_id": "codelabs",
"token_count": 32
} | 6 |
include: ../../analysis_options.yaml
| codelabs/animated-responsive-layout/step_05/analysis_options.yaml/0 | {
"file_path": "codelabs/animated-responsive-layout/step_05/analysis_options.yaml",
"repo_id": "codelabs",
"token_count": 12
} | 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.
import 'package:flutter/material.dart';
class Destination {
const Destination(this.icon, this.label);
final IconData icon;
final String label;
}
co... | codelabs/animated-responsive-layout/step_06/lib/destinations.dart/0 | {
"file_path": "codelabs/animated-responsive-layout/step_06/lib/destinations.dart",
"repo_id": "codelabs",
"token_count": 171
} | 8 |
import 'package:animated_responsive_layout/main.dart';
import 'package:flutter_test/flutter_test.dart';
void main() {
testWidgets('Build app and trigger a frame', (tester) async {
await tester.pumpWidget(const MainApp());
});
}
| codelabs/animated-responsive-layout/step_06/test/widget_test.dart/0 | {
"file_path": "codelabs/animated-responsive-layout/step_06/test/widget_test.dart",
"repo_id": "codelabs",
"token_count": 82
} | 9 |
org.gradle.jvmargs=-Xmx4G
android.useAndroidX=true
android.enableJetifier=true
| codelabs/animated-responsive-layout/step_08/android/gradle.properties/0 | {
"file_path": "codelabs/animated-responsive-layout/step_08/android/gradle.properties",
"repo_id": "codelabs",
"token_count": 30
} | 10 |
#import "GeneratedPluginRegistrant.h"
| codelabs/animated-responsive-layout/step_08/ios/Runner/Runner-Bridging-Header.h/0 | {
"file_path": "codelabs/animated-responsive-layout/step_08/ios/Runner/Runner-Bridging-Header.h",
"repo_id": "codelabs",
"token_count": 13
} | 11 |
// 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 '../models/models.dart';
class SearchBar extends StatelessWidget {
const SearchBar({
super.key,
... | codelabs/animated-responsive-layout/step_08/lib/widgets/search_bar.dart/0 | {
"file_path": "codelabs/animated-responsive-layout/step_08/lib/widgets/search_bar.dart",
"repo_id": "codelabs",
"token_count": 661
} | 12 |
#include "../../Flutter/Flutter-Release.xcconfig"
#include "Warnings.xcconfig"
| codelabs/animated-responsive-layout/step_08/macos/Runner/Configs/Release.xcconfig/0 | {
"file_path": "codelabs/animated-responsive-layout/step_08/macos/Runner/Configs/Release.xcconfig",
"repo_id": "codelabs",
"token_count": 32
} | 13 |
// 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 '../../../shared/classes/classes.dart';
import '../../../shared/extensions.dart';
class ArtistBio extends ... | codelabs/boring_to_beautiful/final/lib/src/features/artists/view/artist_bio.dart/0 | {
"file_path": "codelabs/boring_to_beautiful/final/lib/src/features/artists/view/artist_bio.dart",
"repo_id": "codelabs",
"token_count": 242
} | 14 |
// 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/final/lib/src/features/playlists/view/playlist_home_screen.dart/0 | {
"file_path": "codelabs/boring_to_beautiful/final/lib/src/features/playlists/view/playlist_home_screen.dart",
"repo_id": "codelabs",
"token_count": 1033
} | 15 |
// coverage:ignore-file
// GENERATED CODE - DO NOT MODIFY BY HAND
// ignore_for_file: type=lint
// ignore_for_file: unused_element, deprecated_member_use, deprecated_member_use_from_same_package, use_function_type_syntax_for_parameters, unnecessary_const, avoid_init_to_null, invalid_override_different_default_values_na... | codelabs/boring_to_beautiful/final/lib/src/shared/playback/bloc/playback_bloc.freezed.dart/0 | {
"file_path": "codelabs/boring_to_beautiful/final/lib/src/shared/playback/bloc/playback_bloc.freezed.dart",
"repo_id": "codelabs",
"token_count": 14617
} | 16 |
// 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 '../features/artists/artists.dart';
import '../features/home/hom... | codelabs/boring_to_beautiful/step_01/lib/src/shared/router.dart/0 | {
"file_path": "codelabs/boring_to_beautiful/step_01/lib/src/shared/router.dart",
"repo_id": "codelabs",
"token_count": 1681
} | 17 |
// 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/services.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
import '../playback/bloc/... | codelabs/boring_to_beautiful/step_01/lib/src/shared/views/play_pause_listener.dart/0 | {
"file_path": "codelabs/boring_to_beautiful/step_01/lib/src/shared/views/play_pause_listener.dart",
"repo_id": "codelabs",
"token_count": 678
} | 18 |
//
// Generated file. Do not edit.
//
import FlutterMacOS
import Foundation
import desktop_window
import dynamic_color
import url_launcher_macos
func RegisterGeneratedPlugins(registry: FlutterPluginRegistry) {
DesktopWindowPlugin.register(with: registry.registrar(forPlugin: "DesktopWindowPlugin"))
DynamicColorP... | codelabs/boring_to_beautiful/step_01/macos/Flutter/GeneratedPluginRegistrant.swift/0 | {
"file_path": "codelabs/boring_to_beautiful/step_01/macos/Flutter/GeneratedPluginRegistrant.swift",
"repo_id": "codelabs",
"token_count": 141
} | 19 |
//
// Generated file. Do not edit.
//
import FlutterMacOS
import Foundation
import desktop_window
import dynamic_color
import path_provider_foundation
import url_launcher_macos
func RegisterGeneratedPlugins(registry: FlutterPluginRegistry) {
DesktopWindowPlugin.register(with: registry.registrar(forPlugin: "Deskto... | codelabs/boring_to_beautiful/step_03/macos/Flutter/GeneratedPluginRegistrant.swift/0 | {
"file_path": "codelabs/boring_to_beautiful/step_03/macos/Flutter/GeneratedPluginRegistrant.swift",
"repo_id": "codelabs",
"token_count": 173
} | 20 |
import 'package:flame/collisions.dart';
import 'package:flame/components.dart';
import 'package:flame/effects.dart';
import 'package:flutter/material.dart';
import '../brick_breaker.dart';
import 'bat.dart';
import 'play_area.dart';
class Ball extends CircleComponent
with CollisionCallbacks, HasGameReference<Bric... | codelabs/brick_breaker/step_07/lib/src/components/ball.dart/0 | {
"file_path": "codelabs/brick_breaker/step_07/lib/src/components/ball.dart",
"repo_id": "codelabs",
"token_count": 670
} | 21 |
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