.travis.yml

language: android
jdk: oraclejdk8
dist: trusty
android:
  components:
    - tools
    - platform-tools
    - build-tools-28.0.3
    - $ANDROID_TARGET
    - extra-android-support
    - extra-android-m2repository
    - extra-google-m2repository
    - sys-img-$ANDROID_ABI-$ANDROID_TARGET
  licenses:
    - '.+'
env:
  global:
    - ANDROID_TARGET=android-22  ANDROID_ABI=armeabi-v7a
before_install:
- yes | sdkmanager "platforms;android-28"
before_script:
  - chmod +x gradlew
  - echo no | android create avd --force -n test -t $ANDROID_TARGET --abi $ANDROID_ABI
  - emulator -avd test -no-skin -no-audio -no-window &
  - android-wait-for-emulator
  - adb shell input keyevent 82 &

  # sys-img-x86-android-xx emulators do not work because they require hardware acceleration which
  # is not currently supported by Travis. Stick with sys-img-armeabi-v7-android-xx for now.
  # 
  # Available sys-img-armeabi-v7a-android-xx images on Travis: 21, 22 and 24.
  # sys-img-armeabi-v7a-android-24 fails with `qemu-system-armel: -audio: invalid option`,
  # so currently using sys-img-armeabi-v7a-android-22.