commit | f0e73550a10b06a72881a412abb9292709ebde1c | [log] [tgz] |
---|---|---|
author | Anton Hansson <hansson@google.com> | Tue Nov 24 09:32:14 2020 +0000 |
committer | Anton Hansson <hansson@google.com> | Tue Nov 24 09:32:14 2020 +0000 |
tree | da4dbde571944f37047aa4df20fbe2020631ce3d | |
parent | e8413e92511e966a2006254024cb767db441780e [diff] |
Move CtsSdkExtensions into SdkExtension repository These tests should live with the module they are testing. Bug: 174123164 Test: presubmit (verify CtsSdkExtensions is running) Merged-In: I7885e2307ae46248168de0b2fdbb154bf79bb406 Change-Id: I7885e2307ae46248168de0b2fdbb154bf79bb406
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)
.