title: how to add some third party *.so files in Android.mk?
body: <p>I am compiling  my own app in AOSP,and I want to add my own app in package/app in AOSP. I have some <code>*.so</code>files which will be used in my app,but how to write <code>Android.mk</code>about to use these third party <code>.so</code>files?here is my <code>Android.mk</code>:</p>
  
  <pre><code>  LOCAL_PATH := $(call my-dir)
    include $(CLEAR_VARS)
    LOCAL_MODULE_TAGS := optional
    LOCAL_SHARED_LIBRARIES :=myprebuilt
    LOCAL_STATIC_JAVA_LIBRARIES :=OrbbecJar
    LOCAL_SRC_FILES := $(call all-java-files-under, src)\
                 $(call all-java-files-under, openCVLibrary2410/src)\
                 openCVLibrary2410/src/main/aidl/org/opencv/engine/OpenCVEngineInterface.aidl
    LOCAL_RESOURCE_DIR:= $(LOCAL_PATH)/openCVLibrary2410/res\
                    $(LOCAL_PATH)/res
     LOCAL_CERTIFICATE := platform
     LOCAL_PACKAGE_NAME := HelloWorld
     include $(BUILD_PACKAGE)
      ##################################################
     include $(CLEAR_VARS)
     LOCAL_PREBUILT_STATIC_JAVA_LIBRARIES := OrbbecJar:OrbbecSDKPro_161114_v1.1.2.jar
     include $(BUILD_MULTI_PREBUILT)
     include $(CLEAR_VARS)
     LOCAL_MODULE:=myprebuilt
     LOCAL_SRC_FILES:=libs/armeabi-v7a/libHWWrapper.so\
                       libs/armeabi-v7a/libXnDeviceSensorV2.so\
                       libs/armeabi-v7a/libXnFormats.so
      include $(PREBUILT_SHARED_LIBRARY)
     # Use the folloing include to make our test apk.
    include $(call all-makefiles-under,$(LOCAL_PATH))
  </code></pre>
  
  <p>The build apk contents shows:<a href="https://i.stack.imgur.com/iGUp6.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/iGUp6.jpg" alt="enter image description here"></a></p>
  
  <p>but I can<code>t find</code>*.so`files in my build apk</p>