Add TRAVIS YAML

.travis.yaml

@@ -0,0 +1,38 @@
+# http://docs.travis-ci.com/user/languages/android/
+language: android
+jdk: oraclejdk8
+sudo: false
+
+before_cache:
+- rm -f $HOME/.gradle/caches/modules-2/modules-2.lock
+cache:
+  directories:
+  - $HOME/.gradle/caches/
+  - $HOME/.gradle/wrapper/
+
+android:
+  components:
+  - platform-tools
+  - tools
+  - build-tools-28.0.0
+  - build-tools-28.0.3
+  - android-28
+  - extra-android-m2repository
+  - extra-google-m2repository
+script:
+- echo "Travis branch is $TRAVIS_BRANCH"
+- echo "Travis branch is in pull request $TRAVIS_PULL+REQUEST"
+- ./gradlew assembleRelease
+
+licenses:
+- 'android-sdk-preview-license-52d11cd2'
+- 'android-sdk-license-.+'
+- 'google-gdk-license-.+'
+
+before_install:
+- yes | sdkmanager "platforms;android-28"
+- mkdir -p "$ANDROID_HOME/licenses"
+- echo -e "\n8933bad161af4178b1185d1a37fbf41ea5269c55" > "$ANDROID_HOME/licenses/android-sdk-license"
+- echo -e "\n84831b9409646a918e30573bab4c9c91346d8abd" > "$ANDROID_HOME/licenses/android-sdk-preview-license"
+- chmod +x gradlew
+- ./gradlew dependencies || true