commit | 10c8718d1052f2139ef889d9eebd0ecb170e1698 | [log] [tgz] |
---|---|---|
author | Nikita Ioffe <ioffe@google.com> | Tue Oct 20 16:07:01 2020 +0100 |
committer | Nikita Ioffe <ioffe@google.com> | Tue Oct 20 21:08:54 2020 +0000 |
tree | daa63b4e8564de31b50f8d211f7823c707c3c757 | |
parent | 4b6831e1f2ab2e7e1b258a5d7f25a2533d63c4d4 [diff] |
sdkext module: set min_sdk_version to 30 Test: m com.android.sdkext Bug: 171096530 Bug: 171330443 Change-Id: I0afbabc3673280670e89429e9dfa4cddf3bfbe1b
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)
.