adding circle ci config file (#154)

* adding circle ci config file
* use API 17 and API 25. require only build api 17 and api 25

Author: thomaszurkan-optimizely

.circleci/config.yml

@@ -0,0 +1,103 @@
+version: 2
+jobs:
+  build:
+    working_directory: ~/android-code
+    docker:
+      - image: circleci/android:api-26-alpha
+    environment:
+      JVM_OPTS: -Xmx3200m
+    steps:
+      - checkout
+      - restore_cache:
+              key: jars-{{ checksum "build.gradle" }}-{{ checksum  "test-app/build.gradle" }}
+      - run:
+          name: Download Dependencies
+          command: ./gradlew androidDependencies
+      - run:
+          name: Run Tests
+          command: ./gradlew lint test
+      - save_cache:
+          paths:
+            - ~/.gradle
+          key: jars-{{ checksum "build.gradle" }}-{{ checksum  "test-app/build.gradle" }}
+  test_api_version_25:
+    working_directory: ~/android-code
+    docker:
+      - image: circleci/android:api-26-alpha
+    environment:
+      JVM_OPTS: -Xmx3200m
+      JAVA_OPTIONS: -Djava.io.tmpdir=/var/tmp
+    steps:
+      - checkout
+      - run:
+          name: List emulators
+          command: avdmanager list
+      - run:
+          name: List SDK
+          command: sdkmanager --list
+      - run:
+          name: Setup emulator
+          command: sdkmanager "system-images;android-25;google_apis;armeabi-v7a" && echo "no" | avdmanager create avd -n test -k "system-images;android-25;google_apis;armeabi-v7a"
+      - run:
+          name: Launch emulator
+          command: export LD_LIBRARY_PATH=${ANDROID_HOME}/emulator/lib64:${ANDROID_HOME}/emulator/lib64/qt/lib && emulator64-arm -avd test -noaudio -no-boot-anim -no-window -accel on
+          background: true
+      - run:
+          name: Wait emulator
+          command: |
+            # wait for it to have booted
+            circle-android wait-for-boot
+            # unlock the emulator screen
+            sleep 30
+            adb shell input keyevent 82
+      - run:
+          name: Unit testing
+          command: ./gradlew testAllModulesTravis
+      - store_artifacts:
+          path: test-app/build/reports
+          destination: reports
+      - store_test_results:
+          path: test-app/build/test-results              
+
+  test_api_version_17:
+    working_directory: ~/android-code
+    docker:
+      - image: circleci/android:api-26-alpha
+    environment:
+      JVM_OPTS: -Xmx3200m
+    steps:
+      - checkout
+      - run:
+          name: Setup emulator
+          command: sdkmanager "system-images;android-17;default;armeabi-v7a" && echo "no" | avdmanager create avd -n test -k "system-images;android-17;default;armeabi-v7a"
+      - run:
+          name: Launch emulator
+          command: export LD_LIBRARY_PATH=${ANDROID_HOME}/emulator/lib64:${ANDROID_HOME}/emulator/lib64/qt/lib && emulator64-arm -avd test -noaudio -no-boot-anim -no-window -accel on
+          background: true        
+      - run:
+          name: Wait emulator
+          command: |
+            # wait for it to have booted
+            circle-android wait-for-boot
+            # unlock the emulator screen
+            sleep 30
+            adb shell input keyevent 82
+      - run:
+          name: Run Tests
+          command: ./gradlew testAllModulesTravis
+      - store_artifacts:
+          path: test-app/build/reports
+          destination: reports
+      - store_test_results:
+          path: test-app/build/test-results
+workflows:
+  version: 2
+  build_test:
+    jobs:
+      - build
+      - test_api_version_25:
+          requires:
+            - build
+      - test_api_version_17:
+          requires:
+            - build