Update .gitlab-ci.yml (sdkmanager)

.gitlab-ci.yml

 image: openjdk:8-jdk
 
 variables:
-  ANDROID_COMPILE_SDK: "24"
-  ANDROID_BUILD_TOOLS: "25.0.2"
-  ANDROID_SDK_TOOLS: "25.2.5"
+  ANDROID_COMPILE_SDK: "25"
+  ANDROID_BUILD_TOOLS: "25.0.3"
+  ANDROID_SDK_TOOLS_REV: "3859397"  # "26.0.1"
+  ANDROID_CMAKE_REV: "3.6.3155560"
 
 before_script:
-  - apt-get --quiet update --yes
-  - apt-get --quiet install --yes wget tar unzip lib32stdc++6 lib32z1
-  - wget --quiet --output-document=android-sdk.zip https://dl.google.com/android/repository/tools_r${ANDROID_SDK_TOOLS}-linux.zip
-  - tar --extract --gzip --file=android-sdk.tgz
-  - echo y | android-sdk-linux/tools/android --silent update sdk --no-ui --all --filter android-${ANDROID_COMPILE_SDK}
-  - echo y | android-sdk-linux/tools/android --silent update sdk --no-ui --all --filter platform-tools
-  - echo y | android-sdk-linux/tools/android --silent update sdk --no-ui --all --filter build-tools-${ANDROID_BUILD_TOOLS}
-  - echo y | android-sdk-linux/tools/android --silent update sdk --no-ui --all --filter extra-android-m2repository
-  - echo y | android-sdk-linux/tools/android --silent update sdk --no-ui --all --filter extra-google-google_play_services
-  - echo y | android-sdk-linux/tools/android --silent update sdk --no-ui --all --filter extra-google-m2repository
+  - mkdir $HOME/.android # For sdkmanager configs
+  - echo 'count=0' > $HOME/.android/repositories.cfg # Avoid warning
+  - wget --quiet --output-document=android-sdk.zip https://dl.google.com/android/repository/sdk-tools-linux-${ANDROID_SDK_TOOLS_REV}.zip
+  - mkdir $PWD/android-sdk-linux
+  - unzip -qq android-sdk.zip -d $PWD/android-sdk-linux
   - export ANDROID_HOME=$PWD/android-sdk-linux
-  - export PATH=$PATH:$PWD/android-sdk-linux/platform-tools/
+  - export PATH=$PATH:$ANDROID_HOME/platform-tools/:$ANDROID_NDK_HOME
+  - echo y | $ANDROID_HOME/tools/bin/sdkmanager --update 
+  - echo y | $ANDROID_HOME/tools/bin/sdkmanager 'tools'
+  - echo y | $ANDROID_HOME/tools/bin/sdkmanager 'platform-tools'
+  - echo y | $ANDROID_HOME/tools/bin/sdkmanager 'build-tools;'$ANDROID_BUILD_TOOLS
+  - echo y | $ANDROID_HOME/tools/bin/sdkmanager 'platforms;android-'$ANDROID_COMPILE_SDK
+  - echo y | $ANDROID_HOME/tools/bin/sdkmanager 'extras;android;m2repository'
+  - echo y | $ANDROID_HOME/tools/bin/sdkmanager 'extras;google;google_play_services'
+  - echo y | $ANDROID_HOME/tools/bin/sdkmanager 'extras;google;m2repository'
+  - echo y | $ANDROID_HOME/tools/bin/sdkmanager 'cmake;'$ANDROID_CMAKE_REV
   - chmod +x ./gradlew
 
+
 stages:
   - build
   - test