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Using NDK with STL in an Android Studio gradle project

I am having a problem with stlport binding to gradle project in Android Studio.

The Eclipse Android project using the NDK is ported to Android Studio.

The project uses STL, and I have an android.mk file with the contents

LOCAL_PATH := $(call my-dir) include $(CLEAR_VARS) LOCAL_MODULE := MyProject LOCAL_SRC_FILES := jniapi.cpp renderer.cpp LOCAL_LDLIBS := -llog -landroid -lEGL -lGLESv1_CM -ljnigraphics include $(BUILD_SHARED_LIBRARY)

Gradle seems to ignore the .mk file, and I added the following code to the build.gradle file:

 ndk { moduleName "MyProject" stl "stlport_shared" ldLibs "log", "EGL", "android", "jnigraphics", "GLESv1_CM" //No equivalent for the "include $(BUILD_SHARED_LIBRARY)" here }

After that, the gradle building became successful, but running the application on the device causes an error:

 27446-27446/com.example.test E/AndroidRuntime﹕ FATAL EXCEPTION: main java.lang.UnsatisfiedLinkError: Cannot load library: soinfo_link_image(linker.cpp:1635): could not load library "libstlport_shared.so" needed by "libMyProject.so"; caused by load_library(linker.cpp:745): library "libstlport_shared.so" not found
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2 answers

You need to load the stlport shared library manually into Java code if you are using the generic version. If you do not need a generic option, specify stlport_static instead:

 ndk { moduleName "MyProject" stl "stlport_static" ldLibs "log", "EGL", "android", "jnigraphics", "GLESv1_CM" //No equivalent for the "include $(BUILD_SHARED_LIBRARY)" here }
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I think a newer way to do this is to use APP_STL in your Application.mk, something like this:

 APP_STL := c++_shared APP_ABI := armeabi-v7a NDK_TOOLCHAIN_VERSION := clang

See the official documentation here: https://developer.android.com/ndk/guides/application_mk.html

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Source: https://habr.com/ru/post/980149/

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