commit | 361b0e1d3b77c0394759bb3a2c0a8a6acb353117 | [log] [tgz] |
---|---|---|
author | Treehugger Robot <treehugger-gerrit@google.com> | Mon Mar 01 16:55:08 2021 +0000 |
committer | Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com> | Mon Mar 01 16:55:08 2021 +0000 |
tree | 6e23b5f0ed17e5f35a22d4f69f1dad0febb2299f | |
parent | f393f09ff018c5f6bef1ff1e611e3eb82ab27bd2 [diff] | |
parent | bed6ab9ce6cfc77e6515f626d183c18f72d75ab9 [diff] |
Merge "[LSC] Add LOCAL_LICENSE_KINDS to packages/modules/SdkExtensions" am: bed6ab9ce6 Original change: https://android-review.googlesource.com/c/platform/packages/modules/SdkExtensions/+/1611738 MUST ONLY BE SUBMITTED BY AUTOMERGER Change-Id: I12a886f0f20e977d616f5190f1c35b09dbb71de5
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)
.
For every new Android SDK level a new extension version should be defined. These are the steps necessary to do that:
derive_sdk.cpp
by:GetSdkLevel
with the new enum setderive_sdk_test.cpp
verifying the new extensions worksSdkExtensions.getExtensionVersion
API support the new extensions.RollbackManagerServiceImpl#getExtensionVersions
to account for the new extension version.