Add GitHub Actions workflow for Android APK build

Author: risunCode

.github/workflows/build-android.yml

@@ -0,0 +1,69 @@
+name: Build Android APK
+
+on:
+  push:
+    tags:
+      - 'v*'
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up JDK 17
+        uses: actions/setup-java@v4
+        with:
+          java-version: '17'
+          distribution: 'temurin'
+
+      - name: Setup Android SDK
+        uses: android-actions/setup-android@v3
+
+      - name: Grant execute permission for gradlew
+        run: |
+          cd android-app
+          chmod +x gradlew 2>/dev/null || echo "No gradlew yet"
+
+      - name: Setup Gradle Wrapper
+        run: |
+          cd android-app
+          gradle wrapper --gradle-version 8.2
+
+      - name: Build Release APK
+        run: |
+          cd android-app
+          ./gradlew assembleRelease
+
+      - name: Sign APK
+        uses: r0adkll/sign-android-release@v1
+        id: sign_app
+        with:
+          releaseDirectory: android-app/app/build/outputs/apk/release
+          signingKeyBase64: ${{ secrets.SIGNING_KEY }}
+          alias: ${{ secrets.ALIAS }}
+          keyStorePassword: ${{ secrets.KEY_STORE_PASSWORD }}
+          keyPassword: ${{ secrets.KEY_PASSWORD }}
+        env:
+          BUILD_TOOLS_VERSION: "34.0.0"
+        continue-on-error: true
+
+      - name: Upload APK
+        uses: actions/upload-artifact@v4
+        with:
+          name: DeadNet-APK
+          path: |
+            android-app/app/build/outputs/apk/release/*.apk
+            ${{ steps.sign_app.outputs.signedReleaseFile }}
+
+      - name: Release
+        uses: softprops/action-gh-release@v1
+        if: startsWith(github.ref, 'refs/tags/')
+        with:
+          files: |
+            android-app/app/build/outputs/apk/release/*.apk
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

android-app/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.2-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists