commit | fd2181831414ecd847063e4af9b39471ff536f99 | [log] [tgz] |
---|---|---|
author | Anton Hansson <hansson@google.com> | Fri Nov 20 13:20:04 2020 +0000 |
committer | Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com> | Fri Nov 20 13:20:04 2020 +0000 |
tree | 5302310f5cc26d4ff4ee50538f7a6a1fff363c46 | |
parent | 14798d6c6e7f66a5e7aaef37a86ad30f4200647e [diff] | |
parent | 5c3ccde6fd4df1edd91abd1b79f2699d5b5dcd5f [diff] |
Decouple sdkextension tests from their baseclass am: cd8df6cd38 am: cdf56cb111 am: 5c3ccde6fd Original change: https://android-review.googlesource.com/c/platform/packages/modules/SdkExtensions/+/1505636 Change-Id: Icd7b965796b220f329094d149f0936e0c14b97fa
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)
.