Flutter does not respect ANDROID_HOME environment variables in GitHub Actions run

### Steps to reproduce

Create a workflow with the following steps:

1. Set the `ANDROID_HOME` environment variable
2. Set up Flutter (with [`subosito/flutter-action@v2`](https://github.com/subosito/flutter-action/tree/v2))
3. Run `flutter build apk`
4. Notice how it downloads the NDK into a different place than the location set in step 1

### Expected results

The Android SDK location is set according to the `ANDROID_HOME` environment variable.

### Actual results

Flutter ignores the `ANDROID_HOME` environment variable.

### Code sample

<details open><summary>Code sample</summary>

```yaml
on:
  workflow_dispatich:
jobs:
  build:
    runs-on: macos-latest
    steps:
      - uses: actions/checkout@v4
      - shell: bash
        run: |
          ANDROID_HOME="${{ runner.tool_cache }}/android"
          echo "ANDROID_HOME=$ANDROID_HOME" >> $GITHUB_ENV
      - uses: actions/setup-java@v3
        with:
          distribution: temurin
          java-version: 17
      - uses: subosito/flutter-action@v2
        with:
          channel: stable
      - shell: bash
        run: flutter pub get
      - shell: bash
        run: flutter build apk
```

</details>

### Logs

<details open><summary>Logs</summary>

```console
Run flutter build apk
  flutter build apk
  shell: /bin/bash --noprofile --norc -e -o pipefail {0}
  env:
    ANDROID_HOME: /Users/runner/hostedtoolcache/android
    ANDROID_SDK_ROOT: /Users/runner/hostedtoolcache/android
    JAVA_HOME: /Users/runner/hostedtoolcache/Java_Temurin-Hotspot_jdk/17.0.15-6/arm64/Contents/Home
    JAVA_HOME_17_ARM64: /Users/runner/hostedtoolcache/Java_Temurin-Hotspot_jdk/17.0.15-6/arm64/Contents/Home
    FLUTTER_ROOT: /Users/runner/hostedtoolcache/flutter/stable-3.32.2-arm64
    PUB_CACHE: /Users/runner/.pub-cache
Your project is configured with Android NDK 26.3.11579264, but the following plugin(s) depend on a different Android NDK version:
Running Gradle task 'assembleRelease'...                        
- device_info_plus requires Android NDK 27.0.12077973
- flutter_blue_plus_android requires Android NDK 27.0.12077973
- path_provider_android requires Android NDK 27.0.12077973
- permission_handler_android requires Android NDK 27.0.12077973
- rive_common requires Android NDK 25.1.8937393
Fix this issue by using the highest Android NDK version (they are backward compatible).
Add the following to /Users/runner/work/IronOS_Companion/IronOS_Companion/android/app/build.gradle.kts:
    android {
        ndkVersion = "27.0.12077973"
        ...
    }
Checking the license for package NDK (Side by side) 25.1.8937393 in /Users/runner/Library/Android/sdk/licenses
License for package NDK (Side by side) 25.1.8937393 accepted.
Preparing "Install NDK (Side by side) 25.1.8937393 v.25.1.8937393".
"Install NDK (Side by side) 25.1.8937393 v.25.1.8937393" ready.
Installing NDK (Side by side) 25.1.8937393 in /Users/runner/Library/Android/sdk/ndk/25.1.8937393
"Install NDK (Side by side) 25.1.8937393 v.25.1.8937393" complete.
"Install NDK (Side by side) 25.1.8937393 v.25.1.8937393" finished.
Font asset "MaterialIcons-Regular.otf" was tree-shaken, reducing it from 1645184 to 4272 bytes (99.7% reduction). Tree-shaking can be disabled by providing the --no-tree-shake-icons flag when building your app.
Checking the license for package CMake 3.22.1 in /Users/runner/Library/Android/sdk/licenses
License for package CMake 3.22.1 accepted.
Preparing "Install CMake 3.22.1 v.3.22.1".
"Install CMake 3.22.1 v.3.22.1" ready.
Installing CMake 3.22.1 in /Users/runner/Library/Android/sdk/cmake/3.22.1
"Install CMake 3.22.1 v.3.22.1" complete.
"Install CMake 3.22.1 v.3.22.1" finished.
Running Gradle task 'assembleRelease'...                          310.0s
✓ Built build/app/outputs/flutter-apk/app-release.apk (29.9MB)
```

</details>

### Flutter Doctor output

<details open><summary>Doctor output</summary>

```console
Debug Flutter
  shell: /bin/bash --noprofile --norc -e -o pipefail {0}
  env:
    ANDROID_HOME: /Users/runner/hostedtoolcache/android
    ANDROID_SDK_ROOT: /Users/runner/hostedtoolcache/android
    JAVA_HOME: /Users/runner/hostedtoolcache/Java_Temurin-Hotspot_jdk/17.0.15-6/arm64/Contents/Home
    JAVA_HOME_17_ARM64: /Users/runner/hostedtoolcache/Java_Temurin-Hotspot_jdk/17.0.15-6/arm64/Contents/Home
    FLUTTER_ROOT: /Users/runner/hostedtoolcache/flutter/stable-3.32.2-arm64
    PUB_CACHE: /Users/runner/.pub-cache

$ flutter config --list
All Settings:
  enable-web: (Not set)
  enable-linux-desktop: (Not set)
  enable-macos-desktop: (Not set)
  enable-windows-desktop: (Not set)
  enable-android: (Not set)
  enable-ios: (Not set)
  enable-fuchsia: (Not set) (Unavailable)
  enable-custom-devices: (Not set)
  cli-animations: (Not set)
  enable-native-assets: (Not set) (Unavailable)
  enable-swift-package-manager: (Not set)
  explicit-package-dependencies: (Not set)

$ flutter doctor --verbose
[✓] Flutter (Channel stable, 3.32.2, on macOS 14.7.6 23H626 darwin-arm64, locale en-US) [3.6s]
    • Flutter version 3.32.2 on channel stable at /Users/runner/hostedtoolcache/flutter/stable-3.32.2-arm64
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision 8defaa71a7 (3 days ago), 2025-06-04 11:02:51 -0700
    • Engine revision 1091508939
    • Dart version 3.8.1
    • DevTools version 2.45.1

[!] Android toolchain - develop for Android devices (Android SDK version 36.0.0) [6.5s]
    • Android SDK at /Users/runner/Library/Android/sdk
    • Platform android-36, build-tools 36.0.0
    • ANDROID_HOME = /Users/runner/hostedtoolcache/android
    • ANDROID_SDK_ROOT = /Users/runner/hostedtoolcache/android
    • Java binary at: /Users/runner/hostedtoolcache/Java_Temurin-Hotspot_jdk/17.0.15-6/arm64/Contents/Home/bin/java
      This JDK is specified by the JAVA_HOME environment variable.
      To manually set the JDK path, use: `flutter config --jdk-dir="path/to/jdk"`.
    • Java version OpenJDK Runtime Environment Temurin-17.0.15+6 (build 17.0.15+6)
    ! Some Android licenses not accepted. To resolve this, run: flutter doctor --android-licenses

[✓] Xcode - develop for iOS and macOS (Xcode 15.4) [6.3s]
    • Xcode at /Applications/Xcode_15.4.app/Contents/Developer
    • Build 15F31d
    • CocoaPods version 1.16.2

[✓] Chrome - develop for the web [15ms]
    • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome

[!] Android Studio (not installed) [14ms]
    • Android Studio not found; download from https://developer.android.com/studio/index.html
      (or visit https://flutter.dev/to/macos-android-setup for detailed instructions).

[✓] Connected device (2 available) [9.2s]
    • macOS (desktop) • macos  • darwin-arm64   • macOS 14.7.6 23H626 darwin-arm64
    • Chrome (web)    • chrome • web-javascript • Google Chrome 137.0.7151.56

[✓] Network resources [297ms]
    • All expected network resources are available.

! Doctor found issues in 2 categories.
```

</details>


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Flutter does not respect ANDROID_HOME environment variables in GitHub Actions run #170209

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Flutter does not respect ANDROID_HOME environment variables in GitHub Actions run #170209

Description

Steps to reproduce

Expected results

Actual results

Code sample

Logs

Flutter Doctor output

Metadata

Metadata

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Type

Projects

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