compile optimized C++ for debug build in Android Studio - cmake

Question

I want to set jniDebuggable to false in Android Studio's debug version, but it seems that it doesn't work even I set like this:
debug {
jniDebuggable false
}
Since my JNI debug build is slow when running, I want to use the release build (faster than debug) when I debug my Java code.
Who can tell me how to do?

Answer 1

As stated in the comments under the question post by #Alex Cohn, and adapted from this answer he wrote to "adding "-O0" to cppFlags fails to disable clang compile optimization in android studio", you could do:
android {
defaultConfig {
externalNativeBuild {
cmake {
arguments '-DCMAKE_BUILD_TYPE:STRING=Release'
That's if you don't need actual debug support for the native side of things (i.e. if by "debug", you really just mean running and testing your code without a debugger). If you do, use RelWithDebInfo instead of Release, which creates an optimized build with debug symbols (see here for CMake docs on build out-of-box-defined types).
See here for docs on Android NDK's CMake Guide, and here for docs on ExternalNativeBuildOptions.