深海游弋的鱼 – 第 2 页

从2.10之后的版本，flutter已经正式支持构建Windows应用。不过距离实现全平台构建，还需要考虑很多问题，flutter构建的应用更加适合移动端的使用习惯，如果需要构建Windows应用，我的建议是使用一些适合桌面端的widget。

具体方法如下：

条件

需要安装Visual Studio 2019或者Visual Studio 2022，简言之，需要安装Windows 10 SDK。
2.10之前的版本是默认关闭的。Linux和Mac是默认关闭的，可以手动进行打开。

方法

1. 打开Windows的平台支持

PowerShell输入如下指令（如下命令可以使用flutter config查看，2.10以上的版本默认开启）

flutter config --enable-windows-desktop

# 其他平台
flutter config --[no-]enable-macos-desktop

flutter config --[no-]enable-linux-desktop

flutter config --enable-windows-desktop

# 其他平台

flutter config --[no-]enable-macos-desktop

flutter config --[no-]enable-linux-desktop

可以使用flutter doctor查看情况

如果报错：

$ flutter doctor
Flutter assets will be downloaded from https://storage.flutter-io.cn. Make sure you trust this source!
Doctor summary (to see all details, run flutter doctor -v):
[√] Flutter (Channel stable, 3.0.1, on Microsoft Windows [版本 10.0.22000.708], locale zh-CN)
[√] Android toolchain - develop for Android devices (Android SDK version 32.0.0)
[√] Chrome - develop for the web
[☠] Visual Studio - develop for Windows (the doctor check crashed)
    X Due to an error, the doctor check did not complete. If the error message below is not helpful, please let us
      know about this issue at https://github.com/flutter/flutter/issues.
    X Exception: Bad UTF-8 encoding (U+FFFD; REPLACEMENT CHARACTER) found while decoding string: [
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          "installationVersion": "17.2.32526.322",
          "productId": "Microsoft.VisualStudio.Product.Community",
          "productPath": "D:\\Program Files\\Microsoft Visual Studio\\2022\\Community\\Common7\\IDE\\devenv.exe",
          "state": 4294967295,
          "isComplete": true,
          "isLaunchable": true,
          "isPrerelease": false,
          "isRebootRequired": false,
          "displayName": "Visual Studio Community 2022",
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      . The Flutter team would greatly appreciate if you could file a bug explaining exactly what you were doing
      when this happened:
      https://github.com/flutter/flutter/issues/new/choose
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[√] Android Studio (version 2021.2)
[√] IntelliJ IDEA Ultimate Edition (version 2018.3)
[√] Connected device (4 available)
[√] HTTP Host Availability

! Doctor found issues in 1 category.

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$ flutter doctor

Flutter assets will be downloaded from https://storage.flutter-io.cn. Make sure you trust this source!

Doctor summary (to see all details, run flutter doctor -v):

[√] Flutter (Channel stable, 3.0.1, on Microsoft Windows [版本 10.0.22000.708], locale zh-CN)

[√] Android toolchain - develop for Android devices (Android SDK version 32.0.0)

[√] Chrome - develop for the web

[☠] Visual Studio - develop for Windows (the doctor check crashed)

X Due to an error, the doctor check did not complete. If the error message below is not helpful, please let us

know about this issue at https://github.com/flutter/flutter/issues.

X Exception: Bad UTF-8 encoding (U+FFFD; REPLACEMENT CHARACTER) found while decoding string: [

{

"instanceId": "5cb9d9e1",

"installDate": "2022-06-12T07:42:21Z",

"installationName": "VisualStudio/17.2.3+32526.322",

"installationPath": "D:\\Program Files\\Microsoft Visual Studio\\2022\\Community",

"installationVersion": "17.2.32526.322",

"productId": "Microsoft.VisualStudio.Product.Community",

"productPath": "D:\\Program Files\\Microsoft Visual Studio\\2022\\Community\\Common7\\IDE\\devenv.exe",

"state": 4294967295,

"isComplete": true,

"isLaunchable": true,

"isPrerelease": false,

"isRebootRequired": false,

"displayName": "Visual Studio Community 2022",

"description": "��ǿ�� IDE��ѧ��Դ��ߺ͸��ʹ��",

"channelId": "VisualStudio.17.Release",

"channelUri": "https://aka.ms/vs/17/release/channel",

"enginePath": "C:\\Program Files (x86)\\Microsoft Visual

Studio\\Installer\\resources\\app\\ServiceHub\\Services\\Microsoft.VisualStudio.Setup.Service",

"installedChannelUri": "https://aka.ms/vs/17/release/channel",

"releaseNotes":

"https://docs.microsoft.com/en-us/visualstudio/releases/2022/release-notes-v17.2#17.2.3",

"thirdPartyNotices": "https://go.microsoft.com/fwlink/?LinkId=661288",

"updateDate": "2022-06-12T07:42:21.8130931Z",

"catalog": {

"buildBranch": "d17.2",

"buildVersion": "17.2.32526.322",

"id": "VisualStudio/17.2.3+32526.322",

"localBuild": "build-lab",

"manifestName": "VisualStudio",

"manifestType": "installer",

"productDisplayVersion": "17.2.3",

"productLine": "Dev17",

"productLineVersion": "2022",

"productMilestone": "RTW",

"productMilestoneIsPreRelease": "False",

"productName": "Visual Studio",

"productPatchVersion": "3",

"productPreReleaseMilestoneSuffix": "1.0",

"productSemanticVersion": "17.2.3+32526.322",

"requiredEngineVersion": "3.2.2148.26540"

"properties": {

"campaignId": "2030:fe40db45-8e98-49e0-82b4-afb6aade85b4",

"channelManifestId": "VisualStudio.17.Release/17.2.3+32526.322",

"nickname": "",

"setupEngineFilePath": "C:\\Program Files (x86)\\Microsoft Visual Studio\\Installer\\setup.exe"

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]

. The Flutter team would greatly appreciate if you could file a bug explaining exactly what you were doing

when this happened:

https://github.com/flutter/flutter/issues/new/choose

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111, 103, 114, 97, 109, 32, 70, 105, 108, 101, 115, 32, 40, 120, 56, 54, 41, 92, 92, 77, 105, 99, 114, 111,

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92, 83, 101, 114, 118, 105, 99, 101, 72, 117, 98, 92, 92, 83, 101, 114, 118, 105, 99, 101, 115, 92, 92, 77,

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116, 97, 108, 108, 101, 100, 67, 104, 97, 110, 110, 101, 108, 85, 114, 105, 34, 58, 32, 34, 104, 116, 116,

112, 115, 58, 47, 47, 97, 107, 97, 46, 109, 115, 47, 118, 115, 47, 49, 55, 47, 114, 101, 108, 101, 97, 115,

101, 47, 99, 104, 97, 110, 110, 101, 108, 34, 44, 13, 10, 32, 32, 32, 32, 34, 114, 101, 108, 101, 97, 115,

101, 78, 111, 116, 101, 115, 34, 58, 32, 34, 104, 116, 116, 112, 115, 58, 47, 47, 100, 111, 99, 115, 46,

109, 105, 99, 114, 111, 115, 111, 102, 116, 46, 99, 111, 109, 47, 101, 110, 45, 117, 115, 47, 118, 105, 115,

117, 97, 108, 115, 116, 117, 100, 105, 111, 47, 114, 101, 108, 101, 97, 115, 101, 115, 47, 50, 48, 50, 50,

47, 114, 101, 108, 101, 97, 115, 101, 45, 110, 111, 116, 101, 115, 45, 118, 49, 55, 46, 50, 35, 49, 55, 46,

50, 46, 51, 34, 44, 13, 10, 32, 32, 32, 32, 34, 116, 104, 105, 114, 100, 80, 97, 114, 116, 121, 78, 111,

116, 105, 99, 101, 115, 34, 58, 32, 34, 104, 116, 116, 112, 115, 58, 47, 47, 103, 111, 46, 109, 105, 99,

114, 111, 115, 111, 102, 116, 46, 99, 111, 109, 47, 102, 119, 108, 105, 110, 107, 47, 63, 76, 105, 110, 107,

73, 100, 61, 54, 54, 49, 50, 56, 56, 34, 44, 13, 10, 32, 32, 32, 32, 34, 117, 112, 100, 97, 116, 101, 68,

97, 116, 101, 34, 58, 32, 34, 50, 48, 50, 50, 45, 48, 54, 45, 49, 50, 84, 48, 55, 58, 52, 50, 58, 50, 49,

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58, 32, 123, 13, 10, 32, 32, 32, 32, 32, 32, 34, 98, 117, 105, 108, 100, 66, 114, 97, 110, 99, 104, 34, 58,

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68, 105, 115, 112, 108, 97, 121, 86, 101, 114, 115, 105, 111, 110, 34, 58, 32, 34, 49, 55, 46, 50, 46, 51,

34, 44, 13, 10, 32, 32, 32, 32, 32, 32, 34, 112, 114, 111, 100, 117, 99, 116, 76, 105, 110, 101, 34, 58, 32,

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109, 101, 34, 58, 32, 34, 86, 105, 115, 117, 97, 108, 32, 83, 116, 117, 100, 105, 111, 34, 44, 13, 10, 32,

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54, 46, 51, 50, 50, 34, 44, 13, 10, 32, 32, 32, 32, 32, 32, 34, 110, 105, 99, 107, 110, 97, 109, 101, 34,

58, 32, 34, 34, 44, 13, 10, 32, 32, 32, 32, 32, 32, 34, 115, 101, 116, 117, 112, 69, 110, 103, 105, 110,

101, 70, 105, 108, 101, 80, 97, 116, 104, 34, 58, 32, 34, 67, 58, 92, 92, 80, 114, 111, 103, 114, 97, 109,

32, 70, 105, 108, 101, 115, 32, 40, 120, 56, 54, 41, 92, 92, 77, 105, 99, 114, 111, 115, 111, 102, 116, 32,

86, 105, 115, 117, 97, 108, 32, 83, 116, 117, 100, 105, 111, 92, 92, 73, 110, 115, 116, 97, 108, 108, 101,

114, 92, 92, 115, 101, 116, 117, 112, 46, 101, 120, 101, 34, 13, 10, 32, 32, 32, 32, 125, 13, 10, 32, 32,

125, 13, 10, 93, 13, 10]

[√] Android Studio (version 2021.2)

[√] IntelliJ IDEA Ultimate Edition (version 2018.3)

[√] Connected device (4 available)

[√] HTTP Host Availability

! Doctor found issues in 1 category.

则需要更新Flutter SDK到3.0.2以上的版本即可，如下：

$ flutter upgrade

1	$ flutter upgrade

具体原因，参考：[windows] Exception: Bad UTF-8 encoding when running flutter doctor or building/running for Windows #102451

2. 在旧项目中添加Windows平台支持

在项目地址输入如下指令

flutter create --platforms=windows[,macos,linux] .

1	flutter create --platforms=windows[,macos,linux] .

注意: 项目的名称必须是全小写，如果出现大小写则会报错

"TxxxFxxx" is not a valid Dart package name.

See https://dart.dev/tools/pub/pubspec#name for more information.

"TxxxFxxx" is not a valid Dart package name.

See https://dart.dev/tools/pub/pubspec#name for more information.

3. 构建Windows项目exe

flutter build windows

1	flutter build windows

月度归档： 2022 年 6 月

Flutter构建Windows应用

条件

方法

1. 打开Windows的平台支持

2. 在旧项目中添加Windows平台支持

3. 构建Windows项目exe

参考链接

2022 年 6 月
一	二	三	四	五	六	日
		1	2	3	4	5
6	7	8	9	10	11	12
13	14	15	16	17	18	19
20	21	22	23	24	25	26
27	28	29	30