.travis.yml

language: android
android:
  components:
    # Uncomment the lines below if you want to
    # use the latest revision of Android SDK Tools
    - tools
    # The BuildTools version used by your project
    - build-tools-27.0.3
    - platform-tools
    - tools # Duplicate `tools` entry is by reason

    # The SDK version used to compile your project
    - android-25

before_cache:
  - rm -f  $HOME/.gradle/caches/modules-2/modules-2.lock
  - rm -rf $HOME/.gradle/caches/*/plugin-resolution/

cache:
  directories:
    - $HOME/.gradle/caches/
    - $HOME/.gradle/wrapper/
    - $HOME/.android/build-cache
    - /usr/local/android-sdk/

install:
  # List and delete unnecessary components to free space
  - sdkmanager --list || true
  - 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"

script:
- ./gradlew build connectedCheck