Create android.yml

.github/workflows/android.yml

@@ -0,0 +1,30 @@
+name: Android CI
+
+on: [workflow_dispatch]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+    - name: set up JDK 11
+      uses: actions/setup-java@v4
+      with:
+        java-version: '11'
+        distribution: 'temurin'
+        cache: gradle
+
+    - name: Grant execute permission for gradlew
+      run: chmod +x gradlew
+    - name: Build with Gradle
+      run: ./gradlew assembleRelease
+    - name: Upload
+      uses: actions/upload-artifact@v4.6.0
+      with:
+         name: output
+         path: app/build/outputs/apk/release/app-release.apk
+         if-no-files-found: error
+         retention-days: 7
+