Added workflow action for real this time

.github/workflows/android_build.yml

@@ -0,0 +1,21 @@
+name: Android Build
+
+on: pull_request
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v1
+
+      - name: Set Up JDK
+        uses: actions/setup-java@v1
+        with:
+          java-version: 1.8
+
+      - name: Run Tests
+        run: ./gradlew test
+
+      - name: Build Project
+        run: ./gradlew assemble