Adding travis, travis file

Author: husnjak

.travis.yml

@@ -14,7 +14,7 @@ cache:
 env:
   global:
     - ANDROID_API_LEVEL=26
-    - EMULATOR_API_LEVEL=26
+    - EMULATOR_API_LEVEL=22
     - ANDROID_BUILD_TOOLS_VERSION=26.0.1
     - ANDROID_ABI=armeabi-v7a
     - ANDROID_TAG=google_apis
@@ -34,26 +34,24 @@ android:
     # Google Play Services
     #- extra-google-google_play_services
     # Support library
-    #- extra-android-support
+    - extra-android-support
     # Latest artifacts in local repository
     - extra-google-m2repository
     - extra-android-m2repository
     # Specify at least one system image
     #- sys-img-armeabi-v7a-google_apis-$ANDROID_API_LEVEL
-    - sys-img-armeabi-v7a-google_apis-$EMULATOR_API_LEVEL
-    
+    - sys-img-$ANDROID_ABI-google_apis-$EMULATOR_API_LEVEL
+
   licenses:
     - 'android-sdk-preview-license-52d11cd2'
     - 'android-sdk-license-.+'
 
 # Emulator Management: Create, Start and Wait
 before_script:
-- echo no | android create avd --force -n test -t android-26 --abi armeabi-v7a
-  - emulator -avd test -no-audio -no-window &
-  - android-wait-for-emulator
-  - adb shell input keyevent 82 &
+- echo no | android create avd --force -n test -t android-$EMULATOR_API_LEVEL --abi google_apis/$ANDROID_ABI
+- emulator -avd test -no-window &
+- android-wait-for-emulator
+- adb shell input keyevent 82 &
 
 script:
-    ./gradlew connectedAndroidTest
-
-
+- ./gradlew connectedAndroidTest