Update API version to Android P Preview (#239)

* Upgraded to Android P

* Fix Travis CI (Try 1)

* Fix Travis CI (Try 2)

* Fix Travis CI (Try 3)

* Fix Travis CI (Try 4)

* Fix Travis CI (Try 5)

* Fix Travis CI (Try 6)

* Fix Travis CI (Try 7)

* Fix Travis CI (Try 8)

* Revert Fix Travis CI (Try 8)

* Minor change

* Add parsing of the lint report in Travis CI

* Refactor Gradle config

* Add TODO comments

.travis.yml

@@ -1,19 +1,39 @@
+sudo: false
+
 language: android
-jdk:
-- oraclejdk8
-android:
-  components:
-  - tools
-  - tools
-  - platform-tools
-  - build-tools-27.0.3
-  - android-27
-  - extra-android-m2repository
-  - extra-android-support
-  - extra-google-m2repository
-  - extra-google-google_play_services
-script:
-- "./gradlew build connectedCheck"
+jdk: oraclejdk8
+
+env:
+ global:
+   - ANDROID_API=P
+   - ANDROID_BUILD_TOOLS=28.0.0-rc2 #TODO Switch to release version when Android P is released
+
+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/
+    - $HOME/.android/build-cache
+
 before_install:
-- chmod +x gradlew
-- yes | sdkmanager "platforms;android-27"
+  # Travis still uses 'android' command behind the 'components' section update.
+  # That command is obsolete and cannot update Android SDK Tools after 25.2.5.
+  # Let's solve it here with the new command 'sdkmanager'
+  - yes | sdkmanager --verbose "build-tools;${ANDROID_BUILD_TOOLS}"
+  - yes | sdkmanager --verbose "platform-tools"
+  - yes | sdkmanager --verbose "tools"
+  - yes | sdkmanager --verbose "platforms;android-${ANDROID_API}"
+  - yes | sdkmanager --verbose "extras;android;m2repository"
+
+  # Check tools and dependencies installed
+  - yes | sdkmanager --list
+
+  - chmod +x gradlew
+
+script :
+  - ./gradlew build connectedCheck
+
+after_failure: "cat $TRAVIS_BUILD_DIR/SWADroid/build/reports/lint-results.xml"

SWADroid/build.gradle

@@ -1,16 +1,31 @@
 apply plugin: 'com.android.application'
 
+import org.ajoberstar.grgit.Grgit
+
 ext {
-    git = org.ajoberstar.grgit.Grgit.open()
+    git = Grgit.open()
     gitVersionCode = git.tag.list().size()
     gitVersionName = "${git.describe()}"
+}
 
-    travisBuild = System.getenv("TRAVIS") == "true"
+//return a BuildConfigField from a properties file.
+def static getBuildConfigField(String property){
+    def travisBuild = System.getenv("TRAVIS") == "true"
+    def value
+
+    if(travisBuild) {
+        value = "\"" + System.getenv(property) + "\""
+    } else {
+        Properties properties = new Properties()
+        properties.load(new FileInputStream("keystore.properties"))
+        value = "\"" + properties.getProperty(property) + "\""
+    }
+
+    return value
 }
 
 android {
-    compileSdkVersion 27
-    buildToolsVersion "27.0.3"
+    compileSdkVersion "android-P"
 
     dexOptions {
         maxProcessCount=2
@@ -27,7 +42,7 @@ android {
         versionName gitVersionName
 
         minSdkVersion 14
-        targetSdkVersion 27
+        targetSdkVersion "P"
 
         android.applicationVariants.all { variant ->
             def appName
@@ -59,25 +74,11 @@ android {
     }
 }
 
-//return a BuildConfigField from a properties file.
-def getBuildConfigField(String property){
-    def value
-
-    if(travisBuild) {
-        value = "\"" + System.getenv(property) + "\""
-    } else {
-        Properties properties = new Properties()
-        properties.load(new FileInputStream("keystore.properties"))
-        value = "\"" + properties.getProperty(property) + "\""
-    }
-
-    return value
-}
-
+//TODO Switch to release versions when Android P is released
 dependencies {
-    implementation 'com.android.support:support-v4:27.1.1'
-    implementation 'com.android.support:appcompat-v7:27.1.1'
-    implementation 'com.google.android.gms:play-services-analytics:15.0.0'
+    implementation 'com.android.support:support-v4:28.0.0-alpha1'
+    implementation 'com.android.support:appcompat-v7:28.0.0-alpha1'
+    implementation 'com.google.android.gms:play-services-analytics:15.0.2'
     implementation 'com.google.code.ksoap2-android:ksoap2-android:3.6.2'
     implementation 'commons-io:commons-io:2.6'
     implementation 'com.nostra13.universalimageloader:universal-image-loader:1.9.5'