flutter - 如何修复 flutter doctor 无法识别 Android 手机

Question

我已经通过 USB 将 Android Phone 连接到我的 mac 上。而且 flutter devices 没有列出我的手机。

我已经在我的手机中启用了开发者选项，并通过 MTP 连接设置了 USB。

必须安装 Android Studio 吗？

这是'flutter doctor'的输出

[✓] Flutter (Channel stable, v1.5.4-hotfix.2, on Mac OS X 10.14.5 18F132, locale
    en-US)
[✗] Android toolchain - develop for Android devices
    ✗ Unable to locate Android SDK.
      Install Android Studio from:
      https://developer.android.com/studio/index.html
      On first launch it will assist you in installing the Android SDK
      components.
      (or visit https://flutter.dev/setup/#android-setup for detailed
      instructions).
      If the Android SDK has been installed to a custom location, set
      ANDROID_HOME to that location.
      You may also want to add it to your PATH environment variable.

[✓] iOS toolchain - develop for iOS devices (Xcode 10.2.1)
[!] Android Studio (not installed)
[✓] VS Code (version 1.35.1)
[!] Connected device
    ! No devices available

! Doctor found issues in 3 categories.```

Answer 1

必须安装 Android SDK(Android Studio 的一部分)。 Flutter 依赖于 Android SDK 来开发 Android 应用程序，但您不需要使用 Android Studio 作为 Flutter 的 IDE。

或者你可以只安装android-sdk如果您不想要完整的 Android Studio 安装。