| commit | 6f3b0c7c2ffd73f9f856629ec3002a9f31655967 | [log] [tgz] |
|---|---|---|
| author | Anton Hansson <hansson@google.com> | Fri Nov 20 19:12:34 2020 +0000 |
| committer | Anton Hansson <hansson@google.com> | Fri Nov 20 19:13:43 2020 +0000 |
| tree | c35fed6d8249cb613b9d71eb7c53855f5c33e87d | |
| parent | cd8df6cd38e0f7bcbbee673097b0f3a42f5e0840 [diff] |
Make sdkextensions_e2e_tests a bit more efficient Uninstall all relevant apexes before uninstalling instead of rebooting after each uninstall. Tidy up some other bits while we're here: - reuse installApexes instead of having a custom "installApex" method - dedupe some @Before/@After actions Test: atest sdkextension_e2e_tests Change-Id: Ie0f18054beecb98419bab1045969ddb3101f1fc1
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).