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  1. PO
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    <p>A full explanation, as your Android.mk does not make much sense to me: sorry if you already know some of that.</p> <p>Static libraries should be pure C/C++, and wrapped using the Android NDK in order to be usable from Java.</p> <p>For example, assuming your static library is built from a simple .c and .h files:</p> <p><em>highfive.h:</em></p> <pre><code>int giveMeFive(); </code></pre> <p><em>highfive.c:</em></p> <pre><code>#include "highfive.h" int giveMeFive() { return 5; } </code></pre> <p>This can be compiled as a static library using the Android NDK compiler, which apparently you already know how to do: this will give us a <code>highfive.a</code> library.</p> <p>In this form, this library is unusable from Java, but it can be wrapped using the Android NDK. See the Android NDK documentation for naming conventions etc...</p> <p><em>highfiveWrapper.c:</em></p> <pre><code>#include "highfive.h" jint Java_your_package_name_HighFive_giveMeFive(JNIEnv *env, jobject o) { return (jint) giveMeFive(); } </code></pre> <p>and its corresponding Java file:</p> <pre><code>package your.package.name; class HighFive { static { System.loadLibrary("highfive"); } public native int giveMeFive(); } </code></pre> <p>Now, how do we compile all this to get it to work:</p> <p><em>Android.mk:</em></p> <pre><code>include $(CLEAR_VARS) LOCAL_MODULE := libhighfive-prebuilt LOCAL_SRC_FILES := path/to/highfive.a LOCAL_EXPORT_C_INCLUDES := path/to/highfive.h/folder include $(PREBUILT_STATIC_LIBRARY) include $(CLEAR_VARS) LOCAL_MODULE := highfive LOCAL_SRC_FILES := path/to/highfiveWrapper.c LOCAL_STATIC_LIBRARIES := libhighfive-prebuilt include $(BUILD_SHARED_LIBRARY) </code></pre> <p>And there you should be able to use your native library as you wished to!</p> <p>Hope this helps!</p>
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    1. POAndroid NDK: Static library used is different than precompiled library specified
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    1. USmbrenon
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    1. COOK well the pre-built library contains the wrapper. I think what is happening is that in the last local module the symbols are all stripped since I don't have nay source files to use them.
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      1. USEmmanuel
    2. COYes, that's probably what happens: no LOCAL_SRC_FILES implies that there is no reference to the static library, which is considered "unused" and thus stripped.
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    3. COI can't think of any other solution than putting your NDK wrapper in the shared library. I don't think it's possible to have it inside a static library.
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