refactor: enable caching to speed up emulator boot

Author: i-meant-to-be

.github/workflows/CI.yml

@@ -17,12 +17,8 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v4
 
-      - name: Set up JDK 21
-        uses: actions/setup-java@v4
-        with:
-          java-version: "21"
-          distribution: "temurin"
-          cache: "gradle"
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v3
 
       - name: Grant execute permission for gradlew
         run: chmod +x gradlew
@@ -33,18 +29,37 @@ jobs:
           sudo udevadm control --reload-rules
           sudo udevadm trigger
 
-      - name: Run unit tests and lint check
-        run: ./gradlew --no-daemon --stacktrace --continue test lintDebug
+      - name: AVD cache
+        uses: actions/cache@v4
+        id: avd-cache # Specify a unique GitHub Actions ID for the cache
+        with:
+          path: |
+            ~/.android/avd/*
+            ~/.android/adb*
+          key: avd-33
+
+      - 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: 33
+          arch: x86_64
+          force-avd-creation: false
+          emulator-options: -no-window -gpu swiftshader_indirect -noaudio -no-boot-anim
+          disable-animations: false
+          script: echo "Generated AVD snapshot for caching."
 
-      - name: Run instrumented tests on emulator
+      - name: Run instrumented tests from snapshot
         uses: reactivecircus/android-emulator-runner@v2
         with:
           api-level: 33
           arch: x86_64
+          force-avd-creation: false
+          emulator-options: -no-snapshot-save -no-window -gpu swiftshader_indirect -noaudio -no-boot-anim
           script: ./gradlew --no-daemon --stacktrace --continue connectedAndroidTest
 
-      - name: Assemble debug build
-        run: ./gradlew --no-daemon --stacktrace assembleDebug
+      - name: Run unit tests, lint check and build
+        run: ./gradlew --no-daemon --stacktrace --continue test lintDebug assembleDebug
 
       - name: Upload lint report artifact
         if: always()