BTK, BTK or platform development.
BTK is a radio set of Android release provided to chipset vendors and OEMs before a new Android platform
is released.
The goal of PDA release is to help chipset vendors and OEMs to migrate to a new release so that the
folder BTK contains just the platform development kit.
BTK release includes only necessary components for developing Android Hull and stands for hardware abstraction
layer.
Note that the full Android release is a superset of BTK release, and there is no separate BTK release
to public, as the full platform release includes everything in the BTK.
So the build folder within the BTK is a placeholder for BTK.
Build related stuffs and apps folder consist of some just apps.
So in the BTK folder there is this build folder which actually consist of the BTK.
And in the apps folder there will be some steps and there is also a util folder.
So at the moment it contains some item scripts.
This folder is given to the OEMs or the chipset vendors to start some parallel development of hardware,
abstraction, layers.
So at the moment, the contents of this BTK folder is not that interesting for us.
Next, we have the platform testing folder.
So the platform testing consists of the platform dust modules.
So you can read more about the platform testing in this link.
So start Android compatibility tests.
So within a hospital you can find the platform testing folder here and under which there is a test folder.
In this you can see a lot of unit tests.
For example, if you take automotive or functional, then this is some unit tests related to the app
grid.
And then if you open this, these are simple unit tests, returning unit and you can find different,
different modules here like the dialer home, lockscreen, media center, etc..
These are functional test.
And then there is some health tests again, app grid dial, Google play and similarly there are many
other jank tests here.
You can see some jank tests for the dialer.
So this folder consists of a lot of tests and in the utils you can find some utilities and there are
some libraries.