commit | 8a8b6127dbe75132e691d2717c25959c7c554d46 | [log] [tgz] |
---|---|---|
author | Nikita Ioffe <ioffe@google.com> | Wed Oct 21 12:29:28 2020 +0000 |
committer | Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com> | Wed Oct 21 12:29:28 2020 +0000 |
tree | 4ab07867896b6d287b0d4cf4ed6e690408904fee | |
parent | d7cdc5e8ba6423713af770448efc01d9113f1694 [diff] | |
parent | cbb42c967547841ab3ca866871875bad6ca9f12e [diff] |
sdkext module: set min_sdk_version to 30 am: 10c8718d10 am: cbb42c9675 Original change: https://android-review.googlesource.com/c/platform/packages/modules/SdkExtensions/+/1465648 Change-Id: Ib094d3d03800910f350bf63770fe30991d8dffb8
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)
.