- cd 到flutter 的目录下
- 帮助命令
flutter -h
执行后内容显示为
Manage your Flutter app development.
Common commands:
flutter create <output directory>
Create a new Flutter project in the specified directory.
flutter run [options]
Run your Flutter application on an attached device or in an emulator.
Usage: flutter <command> [arguments]
Global options:
-h, --help Print this usage information.
-v, --verbose Noisy logging, including all shell commands
executed.
If used with --help, shows hidden options.
-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.
--bug-report Captures a bug report file to submit to the Flutter
team.
Contains local paths, device identifiers, and log
snippets.
Available commands:
analyze Analyze the project's Dart code.
attach Attach to a running application.
bash-completion Output command line shell completion setup scripts.
build Flutter build commands.
channel List or switch flutter channels.
clean Delete the build/ and .dart_tool/ directories.
config Configure Flutter settings.
create Create a new Flutter project.
devices List all connected devices.
doctor Show information about the installed tooling.
drive Runs Flutter Driver tests for the current project.
emulators List, launch and create emulators.
format Format one or more dart files.
help Display help information for flutter.
install Install a Flutter app on an attached device.
logs Show log output for running Flutter apps.
make-host-app-editable Moves host apps from generated directories to
non-generated directories so that they can be edited
by developers.
packages Commands for managing Flutter packages.
precache Populates the Flutter tool's cache of binary
artifacts.
run Run your Flutter app on an attached device.
screenshot Take a screenshot from a connected device.
stop Stop your Flutter app on an attached device.
test Run Flutter unit tests for the current project.
trace Start and stop tracing for a running Flutter app.
upgrade Upgrade your copy of Flutter.
version List or switch flutter versions.
Run "flutter help <command>" for more information about a command.
Run "flutter help -v" for verbose help output, including less commonly used
options.
3.显示本机的模拟器
flutter emulators
执行后显示内容
2 available emulators:
Nexus_6_API_26 • Nexus 6 • Google • Nexus 6 API 26
apple_ios_simulator • iOS Simulator • Apple
To run an emulator, run 'flutter emulators --launch <emulator id>'.
To create a new emulator, run 'flutter emulators --create [--name xyz]'.
You can find more information on managing emulators at the links below:
https://developer.android.com/studio/run/managing-avds
https://developer.android.com/studio/command-line/avdmanager
4.启动本机的模拟器（当前启动的是ios模拟器）
flutter emulator --launch apple_ios_simulator
5.远程更新package
pubspec.yaml会依赖一些远程库，这边相当于将远程的依赖下载到本地。
flutter packages get
如果提示以下内容
Error: No pubspec.yaml file found.
This command should be run from the root of your Flutter project.
Do not run this command from the root of your git clone of Flutter.
说明pubspec.yaml文件不在根目录下，这时候需要执行cd命令到工程目录
6.运行应用到模拟器上
flutter run
7.热重载
先保存代码commad+s
然后在 terminal中输入r
执行后界面内容更新
8.停止运行
control+z
9.VSCode中常用的快捷键
R 键重新启动
r 键热重载
q 退出
p 显示网格
P 显示帧率
o 切换Android与iOS的预览模式
