Updated travis configuration

Author: Andrea Maglie

.travis.yml

@@ -1,6 +1,17 @@
+sudo: false
 language: android
 jdk: oraclejdk8
 
+env:
+  global:
+    - ANDROID_API_LEVEL=27
+    - ANDROID_EMULATOR_LEVEL=21
+    - ANDROID_BUILD_TOOLS_VERSION=27.0.3
+    - ANDROID_ABI=armeabi-v7a
+    - ANDROID_TAG=google_apis
+    - ADB_INSTALL_TIMEOUT=20
+    secure: 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
+
 android:
   components:
     - tools
@@ -9,7 +20,8 @@ android:
     - android-28
     - add-on
     - extra
-    - sys-img-x86-android-28
+    - android-$ANDROID_EMULATOR_LEVEL
+    - sys-img-armeabi-v7a-google_apis-$ANDROID_EMULATOR_LEVEL
   licenses:
     - 'android-sdk-preview-license-.+'
     - 'android-sdk-license-.+'
@@ -20,9 +32,8 @@ before_install:
   - chmod +x gradlew
 
 before_script:
-  - android list targets
-  - echo no | android create avd --force -n test -t android-28 -c 100M
-  - emulator -avd test -no-audio -no-window &
+  - echo no | android create avd --force -n test -t "android-"$ANDROID_EMULATOR_LEVEL --abi $ANDROID_ABI --tag $ANDROID_TAG
+  - emulator -avd test -no-window &
   - android-wait-for-emulator
   - adb shell input keyevent 82 &
 
@@ -46,6 +57,3 @@ deploy:
   skip_cleanup: true
   on:
     tags: true
-env:
-  global:
-    secure: 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