$ flutter create -i swift -a kotlin --androidx --org org.book-reviews --description 'flutter sample app' flutter_sample_app Could not find an option named "androidx".
Run 'flutter -h' (or 'flutter <command> -h') for available flutter commands and options.
$ flutter upgrade Flutter is already up to date on channel stable Flutter 2.10.3 • channel stable • https://github.com/flutter/flutter.git Framework • revision 7e9793dee1 (2 weeks ago) • 2022-03-02 11:23:12 -0600 Engine • revision bd539267b4 Tools • Dart 2.16.1 • DevTools 2.9.2
もともと最新だったようです。再度実行してみます。
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$ flutter create -i swift -a kotlin --androidx --org org.book-reviews --description 'flutter sample app' flutter_sample_app Could not find an option named "androidx".
Run 'flutter -h' (or 'flutter <command> -h') for available flutter commands and options.
If run on a project that already exists, this will repair the project, recreating any files that are missing.
Global options: -h, --help Print this usage information. -v, --verbose Noisy logging, including all shell commands executed. If used with "--help", shows hidden options. If used with "flutter doctor", shows additional diagnostic information. (Use "-vv" to force verbose logging in those cases.) -d, --device-id Target device id or name (prefixes allowed). --version Reports the version of this tool. --suppress-analytics Suppress analytics reporting when this command runs.
Usage: flutter create <output directory> -h, --help Print this usage information. --[no-]pub Whether to run "flutter pub get" after the project has been created. (defaults to on) --[no-]offline When "flutter pub get" is run by the create command, this indicates whether to run it in offline mode or not. In offline mode, it will need to have all dependencies already available in the pub cache to succeed. --[no-]overwrite When performing operations, overwrite existing files. --description The description to use for your new Flutter project. This string ends up in the pubspec.yaml file. (defaults to "A new Flutter project.") --org The organization responsible for your new Flutter project, in reverse domain name notation. This string is used in Java package names and as prefix in the iOS bundle identifier. (defaults to "com.example") --project-name The project name for this new Flutter project. This must be a valid dart package name. -i, --ios-language The language to use for iOS-specific code, either ObjectiveC (legacy) or Swift (recommended). [objc, swift (default)] -a, --android-language The language to use for Android-specific code, either Java (legacy) or Kotlin (recommended). [java, kotlin (default)] --platforms The platforms supported by this project. Platform folders (e.g. android/) will be generated in the target project. This argument only works when "--template" is set to app or plugin. When adding platforms to a plugin project, the pubspec.yaml will be updated with the requested platform. Adding desktop platforms requires the corresponding desktop config setting to be enabled. [ios (default), android (default), windows (default), linux (default), macos (default), web (default)] -t, --template=<type> Specify the type of project to create.
[app] (default) Generate a Flutter application. [module] Generate a project to add a Flutter module to an existing Android or iOS application. [package] Generate a shareable Flutter project containing modular Dart code. [plugin] Generate a shareable Flutter project containing an API in Dart code with a platform-specific implementation for Android, for iOS code, or for both. [skeleton] Generate a List View / Detail View Flutter application that follows community best practices.
-s, --sample=<id> Specifies the Flutter code sample to use as the "main.dart" for an application. Implies "--template=app". The value should be the sample ID of the desired sample from the API documentation website (http://docs.flutter.dev/). An example can be found at: https://api.flutter.dev/flutter/widgets/SingleChildScrollView-class.html --list-samples=<path> Specifies a JSON output file for a listing of Flutter code samples that can be created with "--sample".
Run "flutter help" to see global options.
見たところ、--androidxというオプションはなさそうなので、なしで実行してみます。
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$ flutter create -i swift -a kotlin --org org.book-reviews --description 'flutter sample app' flutter_sample_app Creating project flutter_sample_app... Running "flutter pub get" in flutter_sample_app... 2,764ms Wrote 96 files.
All done! In order to run your application, type:
$ cd flutter_sample_app $ flutter run
Your application code is in flutter_sample_app/lib/main.dart.
作成できました！
アプリケーションの起動
プロジェクト作成後のメッセージにアプリケーションの起動方法が書かれていたので早速実行してみます。
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$ cd flutter_sample_app $ flutter run Launching lib/main.dart on Chrome in debug mode... Waiting for connection from debug service on Chrome... 15.4s This app is linked to the debug service: ws://127.0.0.1:52600/qyihwl33cdE=/ws Debug service listening on ws://127.0.0.1:52600/qyihwl33cdE=/ws
💪 Running with sound null safety 💪
🔥 To hot restart changes while running, press "r" or "R". For a more detailed help message, press "h". To quit, press "q".
An Observatory debugger and profiler on Chrome is available at: http://127.0.0.1:52600/qyihwl33cdE= A message on the flutter/keyevent channel was discarded before it could be handled. This happens when a plugin sends messages to the framework side before the framework has had an opportunity to register a listener. See the ChannelBuffers API documentation for details on how to configure the channel to expect more messages, or to expect messages to get discarded: https://api.flutter.dev/flutter/dart-ui/ChannelBuffers-class.html
Chromeが起動し、Flutter Demo Home Pageが表示されました。右下の+ボタンをクリックすると、真ん中に表示されている数字が増えていきます。
