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# multiplatform
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Sean Proctor

07/13/2022, 12:49 AM
For a KMP project that just targets android and jvm, is it possible to get Android Studio/IntelliJ to not mark Java-specific stuff as an error?
x

xxfast

07/13/2022, 1:01 AM
you shouldn't reference java specific stuff in 
commonMain
anyways. 
commonMain
is only for pure-kotlin (jvm-free)
if you really really want to, you can use typealiases for it
Copy code
//commonMain
expect class Random

//jvmMain
actual typealias Random = java.util.Random

//androidMain
actual typealias Random = java.util.Random
keep in mind, that jvm and android are two different targets and the 
Random
above may not be the same
s

Sean Proctor

07/13/2022, 1:04 AM
Thanks, trying that.
Specifically I'm trying to use File. So if I want to use any methods or Kotlin extensions, I guess I need to make expect/actual declarations for those too.
e

ephemient

07/13/2022, 1:37 AM
as a workaround to lighten the workload a bit: if you create a separate KMP module with only a JVM target, you can declare the 
actual
only once. then using that a 
commonMain
dependency in your JVM+Android project, you'll have the same actual in both
s

Sean Proctor

07/13/2022, 2:28 AM
Thanks guys. Not the answer I was hoping for, but I appreciate the help. Did someone make a KMP file library to make my life easier?
e

ephemient

07/13/2022, 2:29 AM
okio filesystem supports KMP https://square.github.io/okio/file_system/
s

Sean Proctor

07/13/2022, 2:31 AM
Looks better than whatever I'd do. .. and with testing! Thanks!
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