Flutter 桌面支持

目录

桌面支持可以让你的 Flutter 代码编译成 Windows、macOS 或 Linux 的原生桌面应用。 Flutter 的桌面支持也允许插件拓展— 你可以使用已经支持了 Windows、macOS 或 Linux 平台的插件，或者创建你自己的插件来实现功能。

Desktop support allows you to compile Flutter source code to a native Windows, macOS, or Linux desktop app. Flutter’s desktop support also extends to plugins—you can install existing plugins that support the Windows, macOS, or Linux platforms, or you can create your own.

要求

Requirements

要能够编译桌面应用，你必须 在特定的平台 上编译应用: 在 Windows 上构建 Windows 应用，在 macOS 上构建 macOS 应用，在 Linux 上构建 Linux 应用。

To compile a desktop application, you must build it on the targeted platform: build a Windows application on Windows, a macOS application on macOS, and a Linux application on Linux.

要创建一个支持桌面的 Flutter 应用，你需要以下的软件：

To create a Flutter application with desktop support, you need the following software:

Windows 的额外要求

Additional Windows requirements

要开发 Windows 桌面程序，除了 Flutter SDK，你还需要做以下准备:

For Windows desktop development, you need the following in addition to the Flutter SDK:

  • Visual Studio 2022 在安装 Visual Studio 时，你需要选择「使用 C++ 的桌面开发」，包括其所有默认组件，以安装必要的 C++ 工具链和 Windows SDK 的头文件。

    Visual Studio 2022 When installing Visual Studio select the “Desktop development with C++” workload, including all of its default components, to install the necessary C++ toolchain and Windows SDK header files.

macOS 的额外要求

Additional macOS requirements

要开发 macOS 桌面程序，除了 Flutter SDK，你还需要做以下准备:

For macOS desktop development, you need the following in addition to the Flutter SDK:

Linux 的额外要求

Additional Linux requirements

要开发 Linux 桌面程序，除了 Flutter SDK，你还需要做以下准备:

For Linux desktop development, you need the following in addition to the Flutter SDK:

安装 Flutter SDK 和这些依赖，最简单方式的方式是使用 snapd。更多详细信息，可以查看 安装 snapd。

One easy way to install the Flutter SDK along with the necessary dependencies is by using snapd. For more information, see Installing snapd.

安装 snapd 后，你就可以使用 Snap Store 安装 Flutter，也可以在命令行进行安装:

Once you have snapd, you can install Flutter using the Snap Store, or at the command line:

$ sudo snap install flutter --classic

如果你在使用的 Linux 发行版上无法使用 snapd，你可以使用下面的命令行:

Alternatively, if you prefer not to use snapd, you can use the following command:

$ sudo apt-get install clang cmake ninja-build pkg-config libgtk-3-dev liblzma-dev

创建一个新项目

Create a new project

你可以通过下列步骤，来创建一个支持桌面的新项目。

You can use the following steps to create a new project with desktop support.

配置步骤

Set up

Flutter 2.10 以及更高版本中加入了对 Windows 操作系统的桌面端支持。 mac OS 和 Linux 的桌面端支持需要使用 Flutter 3 及更高版本。

On Windows, desktop support is enabled on Flutter 2.10 or higher. On macOS and Linux, desktop support is enabled on Flutter 3 or higher.

你也可以运行 flutter doctor 来查看是否存在未解决的问题。每一个成功的配置都有一个对勾，比如在 Windows 上你可能会看到如下内容:

You might run flutter doctor to see if there are any unresolved issues. You should see a checkmark for each successfully configured area. It should look something like the following on Windows, with an entry for “develop for Windows”:

C:\> flutter doctor
Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel stable, 2.10.1, on Microsoft Windows [Version 10.0.22557.1], locale en-US)
[✓] Chrome - develop for the web
[✓] Visual Studio - develop for Windows (Visual Studio Community 2022 17.0.5)
[✓] VS Code (version 1.64.2)
[✓] Connected device (3 available)
[✓] HTTP Host Availability

• No issues found!

在 macOS 上，你可能会看到如下内容:

On macOS, look for a line like this:

[✓] Xcode - develop for iOS and macOS

Linux 平台，你可能会看到如下内容：

On Linux, look for a line like this:

[✓] Linux toolchain - develop for Linux desktop

在执行 flutter doctor 命令时如果发现有不需要支持的平台的问题或者组件缺少报错等提示，你可以忽略这些警告，或者使用 flutter config 命令来禁用这个平台，比如：

If flutter doctor finds problems or missing components for a platform that you don’t want to develop for, you can ignore those warnings. Or you can disable the platform altogether using the flutter config command, for example:

$ flutter config --no-enable-ios

加入了桌面端支持之后，请重启你的 IDE，然后 IDE 就能检测到新的设备了。

After enabling desktop support, restart your IDE so that it can detect the new device.

创建和运行

Create and run

创建一个桌面支持的新项目，与在其他平台 创建新的 Flutter 项目 没什么不同的地方。

Creating a new project with desktop support is no different than creating a new Flutter project for other platforms.

一旦配置好了桌面支持的环境，你可以通过 IDE 或命令行创建和运行桌面程序。

Once you’ve configured your environment for desktop support, you can create and run a desktop application either in the IDE or from the command line.

使用 IDE

Using an IDE

在你配置好桌面支持的环境后，记得重启已经在运行的 IDE。

After you’ve configured your environment to support desktop, make sure you restart the IDE if it was already running.

在你的 IDE 中创建新应用时，它会自动创建 iOS、 Android 和应用的桌面版本。从设备的下拉选项中，选择 windows (desktop)、 macOS (desktop) 或 linux (desktop) 然后运行你的应用，就会看到应用在桌面启动。

Create a new application in your IDE and it automatically creates iOS, Android, web, and desktop versions of your app. From the device pulldown, select windows (desktop), macOS (desktop), or linux (desktop) and run your application to see it launch on the desktop.

使用命令行

From the command line

想要创建一个包含桌面支持的新应用（除了支持移动和 Web），请运行下面的命令，将 myapp 替换成你项目的名称：

To create a new application that includes desktop support (in addition to mobile and web support), run the following commands, substituting my_app with the name of your project:

$ flutter create my_app
$ cd my_app

想要从命令行启动你的应用，可以在根目录执行以下命令之一：

To launch your application from the command line, enter one of the following commands from the top of the package:

C:\> flutter run -d windows
$ flutter run -d macos
$ flutter run -d linux

创建 release 版本的应用

Build a release app

要生成 release 版本，可以运行以下命令之一：

To generate a release build, run one of the following commands:

PS C:\> flutter build windows
$ flutter build macos
$ flutter build linux

应用程序分发

Distribution

Windows

你有多种方法分发你的 Windows 应用程序，以下是一些可以选择的方法：

There are various approaches you can use for distributing your Windows application. Here are some options:

  • 通过工具为你的应用配置 MSIX 安装器（下一个章节会详细介绍），并将其分发到 Microsoft Windows 应用商店。你无需手动创建证书签名，该选项会默认帮你创建。

    Use tooling to construct an MSIX installer (described in the next section) for your application and distribute it through the Microsoft Windows App Store. You don’t need to manually create a signing certificate for this option as it is handled for you.

  • 构建 MSIX 安装器并分发到你的网站。对于该选项来说，你需要手动在 .pfx 证书中给你的应用一个数字签名。

    Construct an MSIX installer and distribute it through your own website. For this option, you need to to give your application a digital signature in the form of a .pfx certificate.

  • 整合所有关键部分，打成你自己的压缩包。

    Collect all of the necessary pieces and build your own zip file.

修改打包好的二进制文件名称

Changing the name of the generated binary

如果要修改打包好的 Windows 软件名称，需要编辑 BINARY_NAME 变量，他在 Flutter 工程里的 windows/CMakeLists.txt 的第四行。

To change the name of the generated Windows application, edit the BINARY_NAME variable set on line 4 of windows/CMakeLists.txt in your Flutter project.

cmake_minimum_required(VERSION 3.15)
project(windows_desktop_app LANGUAGES CXX)

set(BINARY_NAME "YourNewApp")  # Change this line

cmake_policy(SET CMP0063 NEW)

MSIX 打包

MSIX 打包

MSIX packaging

MSIX 是一种新型的 Microsoft Windows 的应用打包格式，它为所有 Windows 应用提供了现代化的打包体验。该格式可以用于向 Microsoft Windows 应用商店分发应用，也可以直接分发安装包。

MSIX, the new Windows application package format, provides a modern packaging format and installer. This format can either be used to ship applications to the Microsoft Store on Windows, or you can distribute app installers directly.

一个为 Flutter 项目创建 MSIX 分发的简单方式是，使用 msix pub package。要查看使用 msix package 的 Flutter 桌面应用，请参考 桌面照片搜索 样例。

The easiest way to create an MSIX distribution for a Flutter project is to use the msix pub package. For an example of using the msix package from a Flutter desktop app, see the Desktop Photo Search sample.

为本地测试创建一个自签名的 .pfx 证书
Create a self-signed .pfx certificate for local testing

对于使用 MSIX 进行私有部署以及测试来说，你需要在 .pfx 证书中给你的应用一个数字签名。

For private deployment and testing with the help of the MSIX installer, you need to give your application a digital signature in the form of a .pfx certificate.

对于通过 Windows 商店部署的应用来说，无需生成 .pfx 证书。 Windows 商店会在分发时帮你的应用创建并管理证书。

For deployment through the Windows Store, generating a .pfx certificate is not required. The Windows Store handles creation and management of certificates for applications distributed through its store.

若要将你的应用分发到自己的网站，则需要一个 Windows 能够识别的证书签名。

Distributing your application by self hosting it on a website requires a certificate signed by a Certificate Authority known to Windows.

通过下面的介绍生成一个自签名的 .pfx 证书。

Use the following instructions to generate a self-signed .pfx certificate.

  1. 若你还未安装 OpenSSL 工具以生成一个证书。

    If you haven’t already, download the OpenSSL toolkit to generate your certificates.

  2. 打开 OpenSSL 的安装目录，例如 C:\Program Files\OpenSSL-Win64\bin。

    Go to where you installed OpenSSL, for example, C:\Program Files\OpenSSL-Win64\bin.

  3. 设置环境变量，以便在任何地方都能够访问到 OpenSSL:
    "C:\Program Files\OpenSSL-Win64\bin"

    Set an environment variable so that you can access OpenSSL from anywhere:
    "C:\Program Files\OpenSSL-Win64\bin"

  4. 按照以下命令生成私钥:
    openssl genrsa -out mykeyname.key 2048

    Generate a private key as follows:
    openssl genrsa -out mykeyname.key 2048

  5. 使用私钥生成一个自签名证书（CSR）:
    openssl req -new -key mykeyname.key -out mycsrname.csr

    Generate a certificate signing request (CSR) file using the private key:
    openssl req -new -key mykeyname.key -out mycsrname.csr

  6. 使用私钥和 CSR 文件生成一个自签名的证书 (CRT) 文件:
    openssl x509 -in mycsrname.csr -out mycrtname.crt -req -signkey mykeyname.key -days 10000

    Generate the signed certificate (CRT) file using the private key and CSR file:
    openssl x509 -in mycsrname.csr -out mycrtname.crt -req -signkey mykeyname.key -days 10000

  7. 使用私钥与 CRT 文件生成 .pfx 文件:
    openssl pkcs12 -export -out CERTIFICATE.pfx -inkey mykeyname.key -in mycrtname.crt

    Generate the .pfx file using the private key and CRT file:
    openssl pkcs12 -export -out CERTIFICATE.pfx -inkey mykeyname.key -in mycrtname.crt

  8. 安装应用之前需要先在本地的 Certificate store 将 .pfx 证书设为 Trusted Root Certification Authorities（信赖的根证书签名）。

    Install the .pfx certificate first on the local machine in Certificate store as Trusted Root Certification Authorities before installing the app.

为 Windows 平台构建压缩包文件

Building your own zip file for Windows

你可以在项目中的 build\windows\runner\<build mode>\ 看到可执行文件。除了该可执行文件之外，你还需要以下内容:

The Flutter executable, .exe, can be found in your project under build\windows\runner\<build mode>\. In addition to that executable, you need the following:

  • 从相同的目录：

    From the same directory:

    • 所有的 .dll 文件

      all the .dll files

    • data 文件夹

      the data directory

  • Visual C++ 发布包。你可以使用 Microsoft 站点上 部署示例演练 所示的任何方法进行发布。如果你使用 application-local 选项, 需要拷贝:

    The Visual C++ redistributables. You can use any of the methods shown in the deployment example walkthroughs on the Microsoft site to ensure that end users have the C++ redistributables. If you use the application-local option, you need to copy:

    • msvcp140.dll
    • vcruntime140.dll
    • vcruntime140_1.dll

    如果你安装了它们的话，可以在 C:\Windows\System32 目录下找到它们。将 DLL 文件放在可执行文件和其他 DLL 旁边的一个目录中，并将它们打包到一个 zip 文件中。返回的结构大概长这样：

    Place the DLL files in the directory next to the executable and the other DLLs, and bundle them together in a zip file. The resulting structure looks something like this:

    Release
│   flutter_windows.dll
│   msvcp140.dll
│   my_app.exe
│   vcruntime140.dll
│   vcruntime140_1.dll
│
└───data
│   │   app.so
│   │   icudtl.dat

...

在这一点上，这将是相对简单的将此文件夹添加到 Windows 安装程序的方法，如 Inno 设置、WiX 等。

At this point if desired it would be relatively simple to add this folder to a Windows installer such as Inno Setup, WiX, etc.

macOS

要发布你的 macOS 软件，你可以选择 将 app 提交至 Mac App Store，或者直接生成 .app 文件，并在自己的网站上发布。不过，从 macOS 10.14.5 开始，你需要对自己的 macOS 软件进行公证，然后才能在 macOS App Store 之外的渠道发布。

To distribute your macOS application, you can either distribute it through the macOS App Store, or you can distribute the .app itself, perhaps from your own website. As of macOS 10.14.5, you need to notarize your macOS application before distributing it outside of the macOS App Store.

不论选择什么方式发布你的 macOS 软件，你都需要在 Xcode 中操作。为了能够在 Xcode 内操作，你需要先使用 flutter build 命令生成所需的工程文件，然后打开工程。

The first step in both of the above processes involves working with your application inside of Xcode. To be able to compile your application from inside of Xcode you first need to build the application for release using the flutter build command, then open the Flutter macOS Runner application.

$ flutter build macos
$ open macos/Runner.xcworkspace

在 Xcode 里，请参考 Apple 的文档： 在分发前对 macOS 软件进行公证 或 将 app 提交至 Mac App Store。你也应该通读一下 macOS 的额外要求，了解 Entitlements、App Sandbox 和 Hardened Runtime 是如何影响你打包的应用的。

Once inside of Xcode, follow either Apple’s documentation on notarizing macOS Applications, or on distributing an application through the App Store. You should also read through the macOS-specific support section below to understand how entitlements, the App Sandbox, and the Hardened Runtime impact your distributable application.

构建并发布一个 macOS 应用 对每个步骤进行了详细的说明。

Build and release a macOS app provides a more detailed step-by-step walkthrough.

Linux

你可以在你的项目下的 build/linux/<构建模式>/bundle/ 路径下找到可执行文件。同时在 bundle 目录下还有两个文件夹：

The executable binary can be found in your project under build/linux/<build mode>/bundle/. Alongside your executable binary in the bundle directory there are two directories:

  • lib 包含必需的 .so 库文件

    lib contains the required .so library files

  • data 包含应用的资源，例如字体和图片

    data contains the application’s data assets, such as fonts or images

除了这些文件之外，你的应用程序还依赖于针对你的应用程序进行编译的各种操作系统库。你可以通过对应用运行 ldd 来查看完整的列表。例如，假设你有一个名为 linux_desktop_test 的 Flutter 桌面应用，你可以通过以下步骤查看相关的系统依赖：

In addition to these files, your application also relies on various operating system libraries that it’s been compiled against. You can see the full list by running ldd against your application. For example, assuming you have a Flutter desktop application called linux_desktop_test you could inspect the system libraries it depends upon as follows:

$ flutter build linux --release
$ ldd build/linux/release/bundle/linux_desktop_test

如果你需要打包发布你的应用，你需要打包 bundle 下的所有文件，并且确保你的 Linux 系统安装了所需的系统依赖。简单来说：

To wrap up this application for distribution you need to include everything in the bundle directory, and make sure the Linux system you are installing it upon has all of the system libraries required. This may be as simple as:

$ sudo apt-get install libgtk-3-0 libblkid1 liblzma5

有关向 Snap Store 发布 Linux 应用，请参见 构建发布一个 Linux 桌面程序。

For information on publishing a Linux application to the Snap Store, see Build and release a Linux application to the Snap Store.

这些工具将不断进行完善，欢迎你持续关注 Linux 桌面应用的其他方式的更新信息。

As the tooling solidifies, stay tuned for updates on other ways to distribute a Linux desktop app.

为已有的应用添加桌面支持

Add desktop support to an existing Flutter app

想为已有的 Flutter 项目添加桌面支持，你可以从项目根目录在控制台运行下面命令：

To add desktop support to an existing Flutter project, run the following command in a terminal from the root project directory:

$ flutter create --platforms=windows,macos,linux .

这将会在你的 Flutter 桌面项目中添加必要的已有文件和文件夹。如果需要只添加特定平台桌面端的支持，修改 platforms 的值为你想要支持的平台即可。

This adds the necessary desktop files and directories to your existing Flutter project. To add only specific desktop platforms, change the platforms list to include only the platform(s) you want to add.

针对 macOS 的支持

macOS-specific support

以下信息仅适用于 macOS 开发。

The following information applies only to macOS development.

权限和 App Sandbox

Entitlements and the App Sandbox

macOS 构建时使用默认的签名进行配置，并且通过 App Sandbox 进行沙盒化。这意味着如果你想要在 macOS 应用中授予特定的权限或者服务，比如：

macOS builds are configured by default to be signed, and sandboxed with App Sandbox. This means that if you want to confer specific capabilities or services on your macOS app, such as the following:

  • 访问网络

    Accessing the internet

  • 从内置摄像头捕捉影像和图像

    Capturing movies and images from the built-in camera

  • 访问文件

    Accessing files

这时你必须在 Xcode 中设置特定的 权限。下面的章节会告诉你如何去做。

Then you must set up specific entitlements in Xcode. The following section tells you how to do this.

设置权限

Setting up entitlements

在 macos/Runner/*.entitlements 文件中完成管理沙盒的设置。当编辑这些文件时，你不应该删除原来的 Runner-DebugProfile.entitlements 中的条款（它们会支持传入网络连接和 JIT），因为 debug 和 profile 模式正常工作需要它们。

Managing sandbox settings is done in the macos/Runner/*.entitlements files. When editing these files, you shouldn’t remove the original Runner-DebugProfile.entitlements exceptions (that support incoming network connections and JIT), as they’re necessary for the debug and profile modes to function correctly.

如果你习惯通过 Xcode capabilities UI 来管理权限文件，请注意 capabilities 编辑器只更新两个文件中的一个，在某些情况下，它会创建一个全新的权限文件，并且切换项目，使其应用于所有配置。这些情况都会导致问题。我们建议你直接编辑这些文件。除非有非常特殊的原因，否则你应该始终对两个文件进行相同的更改。

If you’re used to managing entitlement files through the Xcode capabilities UI, be aware that the capabilities editor updates only one of the two files or, in some cases, it creates a whole new entitlements file and switches the project to use it for all configurations. Either scenario causes issues. We recommend that you edit the files directly. Unless you have a very specific reason, you should always make identical changes to both files.

如果你保持 App Sandbox 可用（如果你计划在 App Store 上发布应用，这是必需的），当你添加某些插件或其他本地功能时，你需要管理应用的权限。例如，使用 file_chooser 插件需要添加 com.apple.security.files.user-selected.read-only 或 com.apple.security.files.user-selected.read-write 权限。另一个通常使用到的权限是 com.apple.security.network.client，如果你想要进行网络请求，那么必须添加它。

If you keep the App Sandbox enabled (which is required if you plan to distribute your application in the App Store), you need to manage entitlements for your application when you add certain plugins or other native functionality. For instance, using the file_chooser plugin requires adding either the com.apple.security.files.user-selected.read-only or com.apple.security.files.user-selected.read-write entitlement. Another common entitlement is com.apple.security.network.client, which you must add if you make any network requests.

假设你没有设置 com.apple.security.network.client 权限，网络请求将会失败，并显示如下消息：

Without the com.apple.security.network.client entitlement, for example, network requests fail with a message such as:

flutter: SocketException: Connection failed
(OS Error: Operation not permitted, errno = 1),
address = example.com, port = 443

关于这些话题的更多信息，请参见 Apple Developer 网站上的 App Sandbox 和 Entitlements。

For more information on these topics, see App Sandbox and Entitlements on the Apple Developer site.

Hardened Runtime

如果你选择在 App Store 以外的地方发布你的应用，你需要确认你的应用是否兼容 macOS 10.15 以上版本。这需要启用 Hardened Runtime 选项。当你启用它后，构建应用时，你需要一个有效的签名证书。

If you choose to distribute your application outside of the App Store, you need to notarize your application for compatibility with macOS 10.15+. This requires enabling the Hardened Runtime option. Once you have enabled it, you need a valid signing certificate in order to build.

默认情况下，权利文件允许 JIT 进行 debug 模式构建，但是，与 App Sandbox 一样，你可能需要管理其他权限。如果你需要同时启用 App Sandbox 和 Hardened Runtime，你需要为同一资源添加多个权限。例如，麦克风访问需要这两个权限： com.apple.security.device.audio-input（对于 Hardened Runtime）和 com.apple.security.device.microphone（对于 App Sandbox）。

By default, the entitlements file allows JIT for debug builds but, as with App Sandbox, you may need to manage other entitlements. If you have both App Sandbox and Hardened Runtime enabled, you may need to add multiple entitlements for the same resource. For instance, microphone access would require both com.apple.security.device.audio-input (for Hardened Runtime) and com.apple.security.device.microphone (for App Sandbox).

有关这个话题的更多信息，参见 Apple Developer 网站上的 Hardened Runtime。

For more information on this topic, see Hardened Runtime on the Apple Developer site.

插件支持

Plugin support

Flutter 在桌面支持中使用和创建插件。

Flutter on the desktop supports using and creating plugins.

使用插件

Using a plugin

想要使用支持桌面的插件，请遵循 using packages 中的插件使用步骤。和 iOS 或 Android 一样，Flutter 会在你的项目里自动添加必要的本地代码。

To use a plugin that supports desktop, follow the steps for plugins in using packages. Flutter automatically adds the necessary native code to your project, as with iOS or Android.

我们推荐以下插件，它们已经更新，可以在桌面应用中使用:

We recommend the following plugins, which have been updated to work for desktop apps:

使用下面的链接，寻找 pub.dev 上所有支持桌面应用的包。这些链接列出了 所有 的包，不仅是插件包。（记住这点，插件包 或 插件 提供了一个平台特定的服务接口。）

Use the following links to find all packages on pub.dev that support desktop apps. These links lists all packages, not just plugin packages. (Remember that plugin packages, or plugins, provide an interface to platform-specific services.)

编写一个插件

Writing a plugin

当你开始构建自己的插件时，你需要记住联合。联合是定义几个不同包的能力，其中每个包都针对不同的平台，将它们合并到一个插件中，这样方便开发人员使用。比如，Windows 实现的 url_launcher，实际是通过 url_launcher_windows 完成的，但是 Flutter 开发者可以在 pubspec.yaml 中，简单地添加 url_launcher 包作为依赖，在构建过程中会基于目标平台引入正确的实现。联合非常方便，因为具有不同专长的不同团队，可以为不同的平台构建相应的插件实现。与原插件作者协调之后，你可以为 pub.dev 上任何联合插件添加新的平台实现。

When you start building your own plugins, you’ll want to keep federation in mind. Federation is the ability to define several different packages, each targeted at a different set of platforms, brought together into a single plugin for ease of use by developers. For example, the Windows implementation of the url_launcher is really url_launcher_windows, but a Flutter developer can simply add the url_launcher package to their pubspec.yaml as a dependency and the build process pulls in the correct implementation based on the target platform. Federation is handy because different teams with different expertise can build plugin implementations for different platforms. You can add a new platform implementation to any endorsed federated plugin on pub.dev, so long as you coordinate this effort with the original plugin author.

想要了解更多信息，包括关于已支持的插件信息，请参阅以下资源:

For more information, including information about endorsed plugins, see the following resources:

Codelab 和 Flutter 文档

Samples and codelabs

构建一个 Flutter 桌面程序
这个 codelab 会引导你通过使用 Flutter，来构建一个集成 GitHub GraphQL API 的桌面应用。

Write a Flutter desktop application
A codelab that walks you through building a desktop application that integrates the GitHub GraphQL API with your Flutter app.

你可以运行下面的桌面应用案例，也可以下载并阅读源代码，以了解更多关于 Flutter 桌面支持的信息。

You can run the following samples as desktop apps, as well as download and inspect the source code to learn more about Flutter desktop support.

Flutter Gallery 线上运行的 Web 应用，源代码仓库地址
一个托管在 GitHub 上案例项目，可以用来帮助开发人员评估和使用 Flutter。 Gallery 的构成部分有：Material design widgets 的集合、 behaviors 和用 Flutter 实现的 vignettes。你可以克隆该项目，并按照 README 中的说明，将 Gallery 作为桌面应用程序运行。

Flutter Gallery running web app, repo
A samples project hosted on GitHub to help developers evaluate and use Flutter. The Gallery consists of a collection of Material design widgets, behaviors, and vignettes implemented with Flutter. You can clone the project and run Gallery as a desktop app by following the instructions provided in the README.

Flokk 官宣文章，源代码仓库地址
一款集成了 GitHub 和 Twitter 的谷歌联系人管理器应用。可以从你的 Google 账户同步数据，导入联系人信息，并管理它们。

Flokk announcement blogpost, repo
A Google contacts manager that integrates with GitHub and Twitter. It syncs with your Google account, imports your contacts, and allows you to manage them.

图片搜索应用
使用以下桌面支持插件构建的一个桌面应用案例。

Photo Search app
A sample application built as a desktop application that uses the following desktop-supported plugins: