Initial commit: SpotiFLAC Android/iOS app

.github/workflows/android-build.yml

@@ -0,0 +1,77 @@
+name: Android Build
+
+on:
+  push:
+    branches: [main, develop]
+  pull_request:
+    branches: [main]
+  workflow_dispatch:
+
+jobs:
+  build-android:
+    runs-on: ubuntu-latest
+    
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Setup Java
+        uses: actions/setup-java@v4
+        with:
+          distribution: 'temurin'
+          java-version: '17'
+
+      - name: Setup Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: '1.21'
+          cache-dependency-path: go_backend/go.sum
+
+      - name: Install Android SDK & NDK
+        uses: android-actions/setup-android@v3
+
+      - name: Install gomobile
+        run: |
+          go install golang.org/x/mobile/cmd/gomobile@latest
+          gomobile init
+
+      - name: Build Go backend for Android
+        working-directory: go_backend
+        run: |
+          mkdir -p ../android/app/libs
+          gomobile bind -target=android -androidapi 24 -o ../android/app/libs/gobackend.aar .
+        env:
+          CGO_ENABLED: 1
+
+      - name: Setup Flutter
+        uses: subosito/flutter-action@v2
+        with:
+          flutter-version: '3.24.0'
+          channel: 'stable'
+          cache: true
+
+      - name: Get Flutter dependencies
+        run: flutter pub get
+
+      - name: Generate app icons
+        run: dart run flutter_launcher_icons
+
+      - name: Build APK (Release)
+        run: flutter build apk --release
+
+      - name: Build App Bundle (Release)
+        run: flutter build appbundle --release
+
+      - name: Upload APK artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: SpotiFLAC-Android-APK
+          path: build/app/outputs/flutter-apk/app-release.apk
+          retention-days: 30
+
+      - name: Upload AAB artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: SpotiFLAC-Android-AAB
+          path: build/app/outputs/bundle/release/app-release.aab
+          retention-days: 30