Android Travis CI test + deploy - https://medium.com/@zurfyx/android-travis-ci-with-autodeploy-api-26-efb6c1863628

.travis.yml

sudo: required

language: android
jdk: oraclejdk8

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

env:
 global:
 - ANDROID_API=26
 - ANDROID_BUILD_TOOLS=26.0.2
 - ADB_INSTALL_TIMEOUT=5 # Minutes.
 - secure: "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" # storepass
 - secure: "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" # keypass
 - secure: "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" # GH_TOKEN

android:
  components:
  - tools
  - tools # Running this twice get's the latest build tools (https://github.com/codepath/android_guides/wiki/Setting-up-Travis-CI)
  - platform-tools
  - android-${ANDROID_API}
  - build-tools-${ANDROID_BUILD_TOOLS}
  - extra

script:
- "./gradlew clean test build"

before_deploy:
- openssl aes-256-cbc -K $encrypted_657e27e4d3ee_key -iv $encrypted_657e27e4d3ee_iv -in keystore.jks.enc -out keystore.jks -d
- cd app/build/outputs/apk/release
- jarsigner -verbose -sigalg SHA1withRSA -digestalg SHA1 -keystore ${TRAVIS_BUILD_DIR}/keystore.jks -storepass $storepass -keypass $keypass app-release-unsigned.apk key0
- jarsigner -verify app-release-unsigned.apk
- "${ANDROID_HOME}/build-tools/${ANDROID_BUILD_TOOLS}/zipalign -v 4 app-release-unsigned.apk TravisAndroid.apk"
- cd -
- scripts/tag.sh

deploy:
  provider: releases
  on:
    branch: master
  api_key:
    secure: "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"
  file: "app/build/outputs/apk/release/TravisAndroid.apk"
  overwrite: true
  skip_cleanup: true