Group arguments closer to where they are used

android-emulator/Dockerfile

@@ -1,10 +1,5 @@
 FROM debian:stretch
 
-ARG BUILD_TOOLS_VERSION=28.0.3
-ARG PLATFORM_API_LEVEL=28
-ARG EMULATOR_API_LEVEL=28
-ARG EMULATOR_ARCH=x86_64
-
 # Install java and dependencies
 # to debug missing lib issues use ldconfig -p | grep libGL
 # Dev deps are taken from https://source.android.com/source/initializing#installing-required-packages-ubuntu-1404
@@ -76,6 +71,11 @@ ENV ANDROID_SDK_HOME ${ANDROID_SDK_ROOT}/sdk-home
 # /emulator - emulator, emulator-check 
 ENV PATH ${ANDROID_SDK_ROOT}/emulator:${ANDROID_SDK_ROOT}/tools/bin:${ANDROID_SDK_ROOT}/platform-tools:${PATH}
 
+ARG BUILD_TOOLS_VERSION=28.0.3
+ARG PLATFORM_API_LEVEL=28
+ARG EMULATOR_API_LEVEL=28
+ARG EMULATOR_ARCH=x86_64
+
 # Update AndroidSDK
 # Get ids from sdkmanager --list
 RUN yes 'y' | sdkmanager --licenses >/dev/null \