Add travis.yml file

.travis.yml

@@ -0,0 +1,45 @@
+language: android
+sudo: required
+jdk: oraclejdk8
+
+before_cache:
+  - rm -f $HOME/.gradle/caches/modules-2/modules-2.lock
+  - rm -fr $HOME/.gradle/caches/*/plugin-resolution/
+
+cache:
+  directories:
+    - $HOME/.gradle/caches/
+    - $HOME/.gradle/wrapper/
+
+env:
+  global:
+    - ANDROID_API=29
+    - EMULATOR_API=29
+    - ANDROID_BUILD_TOOLS=29.0.2
+    - ADB_INSTALL_TIMEOUT=10 # minutes
+
+android:
+  components:
+    - tools
+    - platform-tools
+    - tools
+    - build-tools-$ANDROID_BUILD_TOOLS
+    - android-$ANDROID_API
+
+licenses:
+  - android-sdk-preview-license-.+
+  - android-sdk-license-.+
+  - google-gdk-license-.+
+
+before_install:
+  - yes | sdkmanager "platforms;android-29"
+  - mkdir "$ANDROID_HOME/licenses" || true
+  - echo -e "\n24333f8a63b6825ea9c5514f83c2829b004d1fee" > "$ANDROID_HOME/licenses/android-sdk-license"
+  - echo -e "\n84831b9409646a918e30573bab4c9c91346d8abd" > "$ANDROID_HOME/licenses/android-sdk-preview-license"
+  - echo -e "\n859f317696f67ef3d7f30a50a5560e7834b43903" > "$ANDROID_HOME/licenses/android-sdk-arm-dbt-license"
+  - chmod +x gradlew
+
+script:
+  - ./gradlew clean build check
+
+after_failure: "cat $TRAVIS_BUILD_DIR/app/build/outputs/lint-results-debug.xml"