build-apk.yml

name: Android Flutter Build

on:
  push:
    branches:
      - main 
  workflow_dispatch:

jobs:
  build:
    name: Build Android
    runs-on: ubuntu-latest

    steps:
      - name: Checkout code
        uses: actions/checkout@v2

      - name: Setup Java
        uses: actions/setup-java@v2
        with:
          distribution: 'temurin' # AdoptOpenJDK
          java-version: '11'
  
      - name: Decode Keystore
        run: |
          echo "${{ secrets.STAGING_KEYSTORE_BASE64 }}" | base64 -d > android/key.jks
  
      - name: Create Key Properties
        run: |
          echo "${{ secrets.STAGING_KEY_PROPERTIES }}" > android/key.properties

      - name: Set up Flutter
        uses: subosito/flutter-action@v2
        with:
          flutter-version: '3.19.3' # My current version of flutter
          channel: 'stable'
          cache: true
          cache-key: 'flutter-:os:-:channel:-:version:-:arch:-:hash:'
          cache-path: '${{ runner.tool_cache }}/flutter/:channel:-:version:-:arch:' 
          architecture: x64

      - name: Get dependencies
        run: flutter pub get

      - name: Build APK
        run: flutter build apk --release

      - name: Archive artifacts
        uses: actions/upload-artifact@v2
        with:
          name: app-release.apk
          path: build/app/outputs/flutter-apk/app-release.apk