How to add custom library to Android application?

Pablez · wrote on 26 Feb 2020, 07:27

Hi,

I am developing a movile application using Qt 5.14.1 for Android and the application crashes on startup when running the arm64-v8a abi. It works fine if I run the armeabi-v7a abi on the same device, but I need to make it work with the 64 bits version. The error is the following one:

E vndksupport: Could not load vendor/lib64/egl/libGLES_mali.so from sphal namespace: dlopen failed: library "vendor/lib64/egl/libGLES_mali.so" not found.

I think it has to do with the fact that Since Android 7.0 it's not possible anymore to link against a non-ndk shared library (but I don't understand why it works with the armeabi-v7a abi).

Anyway, I have tried different ways to include the libGLES_mali.so library into the apk but I am not able to solve the problem. Anyone can help me?

Thanks,

sierdzio · 26 Feb 2020, 08:22

You can use ANDROID_EXTRA_LIBS variable in .pro file to link additional libraries. It works for all architectures.

Pablez · wrote on 26 Feb 2020, 08:22

@sierdzio I've already done it and the library is included into the libs folder of the android build, but not into the apk.

sierdzio · wrote on 26 Feb 2020, 08:30

No idea then, it works for me (with OpenSSL, protobuf and yaml-cpp libs). Perhaps your AndroidManifest is outdated? Or you replace ANDROID_EXTRA_LIBS value somewhere else (Qt Creator sometimes appends empty call to extra libs in main .pro file)?

Pablez · wrote on 26 Feb 2020, 10:45

OK, now I can add the library into the apk. The problem was that I didn't have the 64 bit version of the library. However, I am still getting the error because the application keeps looking for the library on the "vendor/lib64/egl/" folder. Is there any way to modify this and use the library file I am installing with the apk?

sierdzio · wrote on 26 Feb 2020, 10:58

I don't know.