Add Android build to .travis.yml.

.travis.yml

@@ -1,13 +1,34 @@
-language: c
-
-script:
-  - make
-  - make release
-  - make clean
-
-before_install:
-  - sudo apt-get install -y  libsdl2-dev --no-install-suggests --no-install-recommends
-
-compiler:
-  - clang
-  - gcc
+matrix:
+  include:
+    - language: c
+      before_script:
+        - sudo apt-get install -y libsdl2-dev --no-install-suggests --no-install-recommends
+      script:
+        - make
+        - make release
+        - make clean
+      compiler: clang
+    - language: c
+      before_script:
+        - sudo apt-get install -y libsdl2-dev --no-install-suggests --no-install-recommends
+      script:
+        - make
+        - make release
+        - make clean
+      compiler: gcc
+    - language: android
+      jdk: oraclejdk8
+      android:
+        components:
+          - tools
+          - android-26
+          - build-tools-26.1.1
+      install:
+        - echo y | sdkmanager "ndk-bundle"
+      before_script:
+        - export ANDROID_NDK_HOME=$ANDROID_HOME/ndk-bundle
+        - cd android/ChesterApp
+        - chmod +x ./gradlew
+        - yes | sdkmanager "platforms;android-27"
+      script:
+        - ./gradlew build

android/ChesterApp/app/build.gradle

@@ -8,7 +8,6 @@ android {
         targetSdkVersion 26
         versionCode 1
         versionName "1.0"
-        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
         externalNativeBuild {
             cmake {
                 cppFlags += "-I" + file("../../../src/lib").absolutePath
@@ -32,8 +31,5 @@ android {
 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
     implementation 'com.android.support:appcompat-v7:26.1.0'
-    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
-    testImplementation 'junit:junit:4.12'
-    androidTestImplementation 'com.android.support.test:runner:1.0.1'
-    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
+    implementation 'com.android.support.constraint:constraint-layout:1.1.3'
 }

android/ChesterApp/build.gradle

@@ -7,8 +7,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.1.0-alpha08'
-
+        classpath 'com.android.tools.build:gradle:3.2.1'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files

android/ChesterApp/gradle.properties

@@ -6,7 +6,7 @@
 # http://www.gradle.org/docs/current/userguide/build_environment.html
 # Specifies the JVM arguments used for the daemon process.
 # The setting is particularly useful for tweaking memory settings.
-org.gradle.jvmargs=-Xmx1536m
+org.gradle.jvmargs=-XX\:MaxHeapSize\=256m -Xmx256m
 # When configured, Gradle will run in incubating parallel mode.
 # This option should only be used with decoupled projects. More details, visit
 # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects

android/ChesterApp/gradle/wrapper/gradle-wrapper.properties

@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.4-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-all.zip