Flutter Desktop：在 MacOS Catalina 上找不到设备

Question

我想用 激活flutter config --enable-macos-desktop，执行后该值设置为 true 但（不可用）。

问题是我也看不到我的设备flutter devices。所以我的问题是你知道为什么它不可用以及是否可以为 macOS 编写当前的桌面应用程序？

Answer 1

这是验证可用内容并正确设置环境的方法：

$ flutter config
....
.... 
Settings:
  enable-macos-desktop: true (Unavailable)

$ flutter channel stable
$ flutter devices

No devices detected.

现在，如果您将其更改为 master

$ flutter channel master
$ flutter devices

Downloading Dart SDK from Flutter engine aaf9e79f1d29e128ad5d3beaad1bf4dd0074c470...
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100  221M  100  221M    0     0  27.2M      0  0:00:08  0:00:08 --:--:-- 27.7M
Building flutter tool...
Downloading package sky_engine...                                   0.5s
Downloading flutter_patched_sdk tools...                            1.0s
Downloading flutter_patched_sdk_product tools...                    0.8s
Downloading darwin-x64 tools...                                     1.6s
Downloading darwin-x64/font-subset tools...                         0.6s
1 connected device:

macOS • macOS • darwin-x64 • Mac OS X 10.15.4 19E287

$ flutter devices                                                                                                                                
1 connected device:

macOS • macOS • darwin-x64 • Mac OS X 10.15.4 19E287

$ flutter config

....
....
Settings:
  enable-macos-desktop: true

Answer 2

我发现了问题。要使某些设置起作用，您必须在特定的颤振通道上。我在 flutter 的开发频道上，因此配置不起作用。

我现在改为 flutter master 并且效果很好。

https://github.com/flutter/flutter/wiki/Flutter-build-release-channels