hey gang - in doing some searching I haven't seen ...

# ksp

[Matthew Laser]

hey gang - in doing some searching I haven't seen this topic broached in a bit. is there any straightforward recipe for combining KSP with an android library? I've been trying to cram the com.android.library plugin into the KSP Quickstart's test-processor module without much luck

[elihart]

Generally processor libraries shouldn’t/can’t also be android libraries. At least that was the story with java annotation processors and I imagine KSP is similar

[elihart]

if you need an Android type you can look it up by fully qualified name in KSP at runtime

[Matthew Laser]

yeah, that makes sense - I don't necessarily want to make the processor lib an Android lib, but was hoping to access the android libs from my KSP processor to generate code that adds a certain decorator to android library classes, then sticks that resulting code into a different module that is an actual library

[Matthew Laser]

and it occured to me I didn't know how to access the Android classes in my project without using either the android or com.android.library gradle plugins

[William Reed]

do you have a specific example of what you are trying to access?

[Matthew Laser]

I'd like to use KotlinPoet to generate some convenience methods around `DevicePolicyManager`'s member functions and stick them inside a different module that can be compile as a jar or aar. Somewhat similar to what the KSP Quickstart does, just concerned with specific Android based classes I'm interested in

[William Reed]

not sure if this is helpful, but in my annotation processor, i create android.os.Bundle extension functions with the following:

private val bundleClassName = ClassName("android.os", "Bundle")
val funBuilder = FunSpec.builder("someExtensionMethod")
    .receiver(bundleClassName) // bundle is the receiver (extension function)

[William Reed]

this is getting more into ktpoet, but the example here is that we don’t need to be an android library to do that

[Matthew Laser]

this is helpful - part of what I'm trying to figure out what the right way to do this is 😄

[Matthew Laser]

but I'm trying to inspect the parameters, etc, that the individual functions are invoked with

[William Reed]

i don’t know that an annotation processor is aware of those things

[Matthew Laser]

thanks for the advice william, I appreciate it

[Matthew Laser]

all this said while it's not really leveraging KSP apart form being it's own gradle plugin, was able to get what I was after by adding the dependency of :)

implementation(files("/Users/matthew.laser/Library/Android/sdk/platforms/android-30/android.jar"))