1Scripting Layer For Android 2============================= 3 4### Introduction 5Originally authored by Damon Kohler, Scripting Layer for Android, SL4A, is an automation toolset 6for calling Android APIs in a platform-independent manner. It supports both remote automation via 7ADB as well as execution of scripts from on-device via a series of lightweight translation layers. 8 9### Build Instructions 10Due to its inclusion in AOSP as a privileged app, building SL4A requires a system build. 11 12For the initial build of Android: 13 14 cd <ANDROID_SOURCE_ROOT> 15 source build/envsetup.sh 16 lunch aosp_<TARGET> 17 make [-j15] 18 19*where `<ANDROID_SOURCE_ROOT>` is the root directory of the android tree and `<TARGET>` is the lunch 20target name* 21 22Then Build SL4A: 23 24 cd <ANDROID_SOURCE_ROOT>/external/sl4a 25 mm [-j15] 26 27### Adding SL4A Builds to Android Builds by Default 281) If you are not using a custom buildspec, create one as follows: 29 30 cp <ANDROID_SOURCE_ROOT>/build/buildspec.mk.default <ANDROID_SOURCE_ROOT>/buildspec.mk 31 322) Modify the buildspec to build SL4A as a custom module by editing 33 the line '#CUSTOM_MODULES:=' to 'CUSTOM_MODULES:=sl4a': 34 35 sed -i 's/#CUSTOM_MODULES:=/CUSTOM_MODULES:=sl4a/' <ANDROID_SOURCE_ROOT>/buildspec.mk 36 37### Install Instructions 38Run the following command: 39 40 adb install -r <ANDROID_SOURCE_ROOT>/out/target/product/<TARGET>/data/app/sl4a/sl4a.apk 41 42### Run Instructions 43a) SL4A may be launched from Android as a normal App; or 44b) To enable RPC access from the command prompt: 45 46 adb forward tcp:<HOST_PORT_NUM> tcp:<DEVICE_PORT_NUM> 47 adb shell "am start -a com.googlecode.android_scripting.action.LAUNCH_SERVER \ 48 --ei com.googlecode.android_scripting.extra.USE_SERVICE_PORT <DEVICE_PORT_NUM> \ 49 com.googlecode.android_scripting/.activity.ScriptingLayerServiceLauncher" 50*where `<HOST_PORT_NUM>` and `<DEVICE_PORT_NUM>` are the tcp ports on the host computer and device.* 51 52### Generate the API Documentation 53From SL4A source directory run this command: 54 55 python Docs/generate_api_reference_md.py 56 57In the Docs directory there should now be an ApiReference.md file that 58contains which RPC functions are available in SL4A as well as documentation 59for the RPC functions. 60 61