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Flutter Setup |
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This guide describes how to set up your development environment to run Flutter apps on iOS or Android.
To install and run Flutter, your development environment must meet these minimum requirements:
- Operating Systems: Mac or Linux (64-bit). Windows support is planned.
- Tools: Flutter depends on these command-line tools being available on your environment.
bash
,mkdir
,rm
,git
,curl
,unzip
To get Flutter, use git
to clone the repository and then add the flutter
tool to your path:
$ git clone https://github.com/flutter/flutter.git -b alpha $ export PATH=`pwd`/flutter/bin:$PATH
Run the following command to see if there are any dependencies you need to install to complete the setup:
$ flutter doctor
The first time your run the flutter
command, it will download its dependencies and compile
itself. Subsequent runs should be much faster.
Once you have installed any missing dependencies, run the flutter doctor
command again to
verify that you’ve set everything up correctly.
This step is optional, and can be performed at any time before using Flutter to develop apps for iOS.
To develop Flutter apps for iOS, you need a Mac with Xcode 7.2 or newer:
- Install Xcode 7.2 or newer (via web download or the Mac App Store).
- Make sure the Xcode EULA is signed by either opening Xcode once and confirming or
running
sudo xcodebuild -license
from the command-line.
With Xcode, you’ll be able to run Flutter apps on the iOS simulator.
To prepare to run and test your Flutter app on the iOS simulator, follow these steps:
-
On your Mac, find the Simulator via Spotlight or by using the following command:
$ open -a Simulator
-
Make sure your simulator is using a 64-bit device (iPhone 5s or later) by checking the settings in the simulator's Hardware > Device menu.
-
Depending on your development machine's screen size, simulated high-screen-density iOS devices may overflow your screen. Set the device scale under the Window > Scale menu in the simulator.
To deploy your Flutter app to a physical iOS device, you’ll need some additional tools:
-
Install homebrew.
-
Open the terminal and run these command to install the toools for deploying Flutter apps to iOS devices.
$ brew tap flutter/flutter $ brew install ideviceinstaller ios-deploy
This step is optional, and can be performed at any time before using Flutter to develop apps for Android.
To develop Flutter apps for Android, you can use either a Mac or a Linux (64-bit) machine:
- Install Android Studio.
- From Android Studio, install the latest Android SDK and Android SDK Platform-Tools, as described in Adding SDK Packages.
To prepare to run and test your Flutter app on Android, you'll need an Android device running Android 4.1 (API level 16) or higher.
- Enable developer mode on your device by visiting
Settings > About phone
and tapping theBuild number
line seven times. - In
Settings > Developer options
, enableUSB debugging
. - Using a USB cable, plug your phone into your computer. If prompted on your device, authorize your computer to access your device.
- In the terminal, run the
flutter devices
command to verify that Flutter recognizes your connected Android device.
By default, Flutter uses the version of the Android SDK where your adb
tool is based. If
you want Flutter to use a different installation of the Android SDK, you must set the
ANDROID_HOME
environment variable to that specific installation directory.
We recommend using Atom for editing, running, and debugging Flutter apps. However, using our command-line tools, you can use any editor to develop Flutter applications.
To install Atom:
- Download Atom from the atom.io site.
- Extract the Atom executable from the downloaded file.
Before creating your Flutter project in Atom, you’ll need to perform these pre-flight tasks:
-
Launch the Atom editor.
-
Install the Flutter package by following these steps:
- From the menu, open Packages > Settings View > Install Packages/Themes.
- In the Install Packages field, type flutter and click the Packages button.
- You should see the Flutter package displayed. Click on the button to install the package.
-
Open Packages > Flutter > Package Settings, and set the FLUTTER_ROOT field to the root directory where you installed the Flutter SDK.
-
Open Packages > Dart > Package Settings, and set the Dart SDK Location field to the
bin/cache/dart-sdk
directory in your Flutter SDK’s root folder. -
If you are using Atom on Mac, you should install the
atom
andapm
shell commands. To do this from the menu bar, click onAtom
>Install Shell Commands
.
If you need help installing packages, consult the Atom documentation or email us.
Now, follow our Getting Started guide to run your first Flutter app on iOS and Android.