add steps for caching avds

.github/workflows/Build.yaml

@@ -81,6 +81,25 @@ jobs:
 
       - name: Setup Gradle
         uses: gradle/gradle-build-action@v2
+        
+      - name: AVD cache
+        uses: actions/cache@v3
+        id: avd-cache
+        with:
+          path: |
+            ~/.android/avd/*
+            ~/.android/adb*
+          key: avd-${{ matrix.api-level }}
+      
+      - name: create AVD and generate snapshot for caching
+        if: steps.avd-cache.outputs.cache-hit != 'true'
+        uses: reactivecircus/android-emulator-runner@v2
+        with:
+          api-level: ${{ matrix.api-level }}
+          force-avd-creation: false
+          emulator-options: -no-window -gpu swiftshader_indirect -noaudio -no-boot-anim -camera-back none
+          disable-animations: false
+          script: echo "Generated AVD snapshot for caching."
 
       - name: Run instrumentation tests
         uses: reactivecircus/android-emulator-runner@v2