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Getting native libraries to work well on Android is a beast. I happened to have done exactly what you're describing though, specifically rendering libusb throug

Getting native libraries to work well on Android is a beast. I happened to have done exactly what you're describing though, specifically rendering libusb through an Android phone. My code is at https://github.com/kevmo314/kineticstreamer https://github.com/kevmo314/kineticstreamer and you might be particularly interested in the CMake build at https://github.com/kevmo314/kineticstreamer/blob/main/app/src/main/jni/CMakeLists.txt https://github.com/kevmo314/kineticstreamer/blob/main/app/sr... Happy to answer any questions or help you out if you decide to keep going down this road, shoot me an email at kevmo314@gmail.com. Ultimately an Android phone is still just a Linux computer but jumping through the hoops is definitely hard.

ssahoo 2y ago
It's not that awful once you get hang of it, but it's a mess made by google. Kotlin which is maintained Jetbrain is catching up. Google is far less interested in owning kotlin. Therefore creating a confusion with mix of grovy, maven, java and xml as hell.
clumsysmurf 2y ago
Don't forget Android 15 changes pagesize from 4K to 16K, and you have to recompile those ... https://developer.android.com/about/versions/15/behavior-changes-all#16-kb https://developer.android.com/about/versions/15/behavior-cha...
iiJDSii 2y ago
Hey thanks for this! I gave it a try, imported and built in my Android Studio ("Koala" if that matters), tried getting it installed on a phone, and unfortunately got this cryptic error: > ninja: error: 'lib/libjpeg.so', needed by 'C:/Users/ADMIN/AndroidStudioProjects/kineticstreamer/app/build/intermediates/cxx/Debug/3xf5p505/obj/arm64-v8a/libkinetic.so', missing and no known rule to make it That being said, I browsed through the code some more and while I think it's a great Android project, I don't think (assuming I got it working) it would be advisable for me to build on top of this. The existing complexity, and my lack of faith on cross-compatibility (different phones, SDK updates, etc) are a turn off. Heck I've even seen certain libraries and includes fail because they require different versions of Java/JDK that I have available. So in summary, I think the solution for myself at least for now, will be to explore a different hardware route. A cheap raspberry pi equivalent, with a small display, and battery - annoying to have all these extra components but at least I know it'll work reliably.
- rasz 2y ago
  >got this cryptic error: > 'lib/libjpeg.so' missing whats cryptic about that?
  - WkndTriathlete 2y ago
    I get the sense that the only development environment the OP knows at all is Python. With that perspective I understand why they might think that error is cryptic.
    - skydhash 2y ago
      People keeps forgetting that pretty much everything is C-based and only a few language ecosystems have abstracted it away enough. And even then, if you want to program in slightly esoteric environment, you have to confront that fact. Just understanding how C/C++ projects are used (libraries, header file, linking,...) can get you really far if you have to stray from the happy path.

ssahoo 2y ago

It's not that awful once you get hang of it, but it's a mess made by google. Kotlin which is maintained Jetbrain is catching up. Google is far less interested in owning kotlin. Therefore creating a confusion with mix of grovy, maven, java and xml as hell.

clumsysmurf 2y ago

Don't forget Android 15 changes pagesize from 4K to 16K, and you have to recompile those ... https://developer.android.com/about/versions/15/behavior-changes-all#16-kb https://developer.android.com/about/versions/15/behavior-cha...

iiJDSii 2y ago

Hey thanks for this! I gave it a try, imported and built in my Android Studio ("Koala" if that matters), tried getting it installed on a phone, and unfortunately got this cryptic error: > ninja: error: 'lib/libjpeg.so', needed by 'C:/Users/ADMIN/AndroidStudioProjects/kineticstreamer/app/build/intermediates/cxx/Debug/3xf5p505/obj/arm64-v8a/libkinetic.so', missing and no known rule to make it That being said, I browsed through the code some more and while I think it's a great Android project, I don't think (assuming I got it working) it would be advisable for me to build on top of this. The existing complexity, and my lack of faith on cross-compatibility (different phones, SDK updates, etc) are a turn off. Heck I've even seen certain libraries and includes fail because they require different versions of Java/JDK that I have available. So in summary, I think the solution for myself at least for now, will be to explore a different hardware route. A cheap raspberry pi equivalent, with a small display, and battery - annoying to have all these extra components but at least I know it'll work reliably.

rasz 2y ago
>got this cryptic error: > 'lib/libjpeg.so' missing whats cryptic about that?
- WkndTriathlete 2y ago
  I get the sense that the only development environment the OP knows at all is Python. With that perspective I understand why they might think that error is cryptic.
  - skydhash 2y ago
    People keeps forgetting that pretty much everything is C-based and only a few language ecosystems have abstracted it away enough. And even then, if you want to program in slightly esoteric environment, you have to confront that fact. Just understanding how C/C++ projects are used (libraries, header file, linking,...) can get you really far if you have to stray from the happy path.