.travis.yml

language: android
jdk:
  - oraclejdk8

os: linux
dist: trusty

env:
  global:
    - ANDROID_API_LEVEL=29
    - ANDROID_BUILD_TOOLS_VERSION=29.0.2
    - ADB_INSTALL_TIMEOUT=20 # wait up to 20 minutes for adb to connect to emulator (2 minutes by default)
    - ANDROID_ABI=armeabi-v7a
    - ANDROID_EMULATOR_IMAGE=sys-img-armeabi-v7a-android-19
    - EMULATOR_API_LEVEL=19

android:
  components:
    # Base components 
    - tools # to get the new `repository-11.xml`
    - tools # https://github.com/travis-ci/travis-ci/issues/6040#issuecomment-219367943)
    - platform-tools   
    - build-tools-$ANDROID_BUILD_TOOLS_VERSION

    # used sdk versions
    - android-$ANDROID_API_LEVEL # get the android sdk version to build the project
    - android-$EMULATOR_API_LEVEL # get the android sdk version for the emulator

    # Get the latest version of additional components
    - extra-android-support
    - extra-google-m2repository
    - extra-android-m2repository
    - extra-google-google_play_services

    # Specify the needed emulator
    - $ANDROID_EMULATOR_IMAGE

install:
  #- sdkmanager --list || true # List all available targets, device definitions and AVDs.
  # Update sdk tools to latest version and install/update components
  - echo yes | sdkmanager "tools"
  - echo yes | sdkmanager "platform-tools"
  - echo yes | sdkmanager "build-tools;"$ANDROID_BUILD_TOOLS_VERSION
  - echo yes | sdkmanager "platforms;android-"$ANDROID_API_LEVEL # Latest platform required by SDK tools

  #- echo yes | sdkmanager "extras;android;m2repository"
  #- echo yes | sdkmanager "extras;google;m2repository"
  #- echo yes | sdkmanager "extras;m2repository;com;android;support;constraint;constraint-layout;1.0.2"
  #- echo yes | sdkmanager "extras;m2repository;com;android;support;constraint;constraint-layout-solver;1.0.2"

  - echo yes | sdkmanager --update
  #- echo yes | sdkmanager --licenses

before_script:
  # Create and start the emulator
  - sdkmanager "system-images;android-"$EMULATOR_API_LEVEL";google_apis;armeabi-v7a"
  - echo no | avdmanager -v create avd -f -n test -k "system-images;android-"$EMULATOR_API_LEVEL";google_apis;armeabi-v7a"
  - $ANDROID_HOME/emulator/emulator -avd test -no-audio -no-window &

  - android-wait-for-emulator

  # Turn off animations
  - adb shell settings put global window_animation_scale 0 &
  - adb shell settings put global transition_animation_scale 0 &
  - adb shell settings put global animator_duration_scale 0 &

  # Wake up
  - adb shell input keyevent 82 &
  - adb shell input keyevent 1 &

script:
  - ./gradlew test # Local unit test
  - ./gradlew connectedAndroidTest # Instrumented unit test
  - ./gradlew lint #maybe at some point
  #- ./gradlew clean test build