How to use dlopen() on Android 8?

[RPG3D]

In my test ndk app, dlopen() reutrn nullptr.

Java_com_github_rpg3d_sword2android_MainActivity_runGame(JNIEnv* env, jobject /* this */)
{

    void* handle = dlopen("libvulkan.so", RTLD_NOW|RTLD_LOCAL);
    char* loaderror = (char *) dlerror();
    Game game;
    game.run();

}

[ggfan]

that should be the way. Is Vulkan supported on the device?

[RPG3D]

that should be the way. Is Vulkan supported on the device?

yes. my device can run your LoadVulkan sample, but not my own test app

[ggfan]

I am not sure what the problem is. you are also using native-activity? ( not sure that matters at all)

Re-run the app while keep "adb logcat" running on command line, see if you could have some clue from there ( adb logcat ): it normally throw error message ( but buried in million of other non-related messages ) :-(

[RPG3D]

In single module it runs well. but in multi module app didn't.
would you give me some help ? I am portting an old 2D PC game to Android, but failed...
https://github.com/RPG3D/Sword2

[Andreyogld3d]

@RPG3D, try to use vulkan_wrapper.cpp instead of manually loading of Vulkan API functions

[RPG3D]

@RPG3D, try to use vulkan_wrapper.cpp instead of manually loading of Vulkan API functions

thanks, I will do some test