| commit | 91edd8b75631c2ace078d99d668f5fba3310024a | [log] [tgz] |
|---|---|---|
| author | Anton Hansson <hansson@google.com> | Mon Nov 23 15:53:54 2020 +0000 |
| committer | Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com> | Mon Nov 23 15:53:54 2020 +0000 |
| tree | 84084df186eeee66a20bec16fcb3b50a1d9abdca | |
| parent | fd2181831414ecd847063e4af9b39471ff536f99 [diff] | |
| parent | ef5f61620e5db40087283807332fc8062422c9b9 [diff] |
Make sdkextensions_e2e_tests a bit more efficient am: 6f3b0c7c2f am: ef5f61620e Original change: https://android-review.googlesource.com/c/platform/packages/modules/SdkExtensions/+/1507579 Change-Id: I83b09741014286a682522e2c7d779accc94b2b7b
SdkExtensions is a module that decides the extension SDK level of the device, and provides APIs for applications to query the extension SDK level.
The module is packaged in an apex, com.android.sdkext, and has two components:
bin/derive_sdk: Native binary that runs early in the device boot process and reads metadata of other modules, to set system properties relating to the extension SDK (for instance build.version.extensions.r).javalib/framework-sdkextension.jar: This is a jar on the bootclasspath that exposes APIs to applications to query the extension SDK level.derive_sdk is a program that reads metadata stored in other apex modules, in the form of binary protobuf files in subpath etc/sdkinfo.binarypb inside each apex. The structure of this protobuf can be seen here. The exact steps for converting a set of metadata files to actual extension versions is likely to change over time, and should not be depended upon.
The module exposes a java class SdkExtensions in the package android.os.ext. The method getExtensionVersion(int) can be used to read the version of a particular sdk extension, e.g. getExtensionVersion(Build.VERSION_CODES.R).