rawdrawandroid VS ndk-samples

> A little bit of this also has to do to stick it to all those Luddites on the internet who post "that's impossible" or "you're doing it wrong" to Stack Overflow questions... Requesting permissions in the JNI "oh you have to do that in Java" or other dumb stuff like that. I am completely uninterested in your opinions of what is or is not possible. This is computer science. There aren't restrictions. I can do anything I want. It's just bits. You don't own me.

From the wonderful CNLohr's rawdraw justification[0]. I always enjoy these kinds of efforts because they embody the true hacker spirit. This is Hacker News after all!

0: https://github.com/cnlohr/rawdrawandroid?tab=readme-ov-file#...

My knowledge of the subject is limited and English is not my first language, but I remember reading this some time ago and it may be useful. https://github.com/cnlohr/rawdrawandroid Another option is Godot, I saw applications made with it.

Might not be impossible: Someone made an android application totally in C. If it can be done in C, it can be done in Rust as well I presume? https://github.com/cnlohr/rawdrawandroid

C isn't the primary language of user-space mobile development. while possible, it is inadvisable. as for its feasability, the court is in your favour (on android)! it is possible to "replace" the lockscreen. you will be leaving yourself vulnerable to attacks the actual lockscreen can prevent, but it can be done. here, this article goes into the downsides of this unrooted method, while also explaining the rooted method. Good luck! (and use java/kotlin)

Check this: https://github.com/cnlohr/rawdrawandroid

https://developer.android.com/ndk. Java/Kotlin for the rest.

Best you can do is refer to the official samples and learn by taking one of the samples and modifying it to your use case. The comments in the samples should be quite adequate.

You can compile c++ for android using the NDK.

Mobile has a lot of C++ as libraries but in https://developer.android.com/ndk for android.

Then please provide references that say how to do this. Here https://developer.android.com/ndk it says:

cinterop is only for Kotlin/Native, where the whole application gets compiled to native code. If the target is Android, you want to use Native Development Kit (https://developer.android.com/ndk) instead.

It's a little convoluted since the app does still fork from the zygote with ART in there, but they added an entire layer of APIs so you can jump right in from C++. Here's a sample https://github.com/android/ndk-samples/blob/master/native-ac...