Cocos2dx如何引用第三方SO文件(Android NDK)

做项目的过程中发现，引用第三方的库lib3rdsdk.so，当直接把lib3rdsdk.so放进armeabi文件夹里，会被删除掉。查网上资料都说的不全，经过实验，最简单的方法就是在jni下的android.mk里加下面3-7行就可以，要放最前面，放后面有可能不行哦，因为编译路径有可能会被改掉。

其中prebuilt/$(TARGET_ARCH_ABI)中的prebuilt就是jni里新建的prebuilt文件，其实建不建无所谓，prebuilt里面有4个文件夹：armeabi、armeabi-v7a、mips、x86，每个文件夹里放着不同架构的lib3rdsdk.so库， $(TARGET_ARCH_ABI)则是按cpu架构自动选择armeabi、armeabi-v7a、mips、x86这些架构中的库，默认只会复制armeabi中的libtxpay.so库，比如需要多复制armeabi-v7a中的库，则需要在application.mk中添加APP_ABI := armeabi armeabi-v7a后，则会同时复制armeabi armeabi-v7a的库

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LOCAL_PATH := $(call my-dir)

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include $(CLEAR_VARS)

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LOCAL_MODULE    := 3rdsdk

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LOCAL_SRC_FILES := prebuilt/$(TARGET_ARCH_ABI)/lib3rdsdk.so

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include $(PREBUILT_SHARED_LIBRARY)

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include $(CLEAR_VARS)

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LOCAL_MODULE := game_shared

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LOCAL_MODULE_FILENAME := libgame

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#traverse all the directory and subdirectory

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define walk

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  $(wildcard $(1)) $(foreach e, $(wildcard $(1)/*), $(call walk, $(e)))

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endef

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#traverse Classes Directory

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ALLFILES = $(call walk, $(LOCAL_PATH)/../../Classes)

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FILE_LIST := hellocpp/main.cpp

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FILE_LIST += $(LOCAL_PATH)/../../Classes/helloworld.cpp

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FILE_LIST += $(filter %.cpp, $(ALLFILES))

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FILE_INCLUDES := $(shell find $(LOCAL_PATH)/../../Classes -type d)

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#source file will be compiled

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LOCAL_SRC_FILES := $(FILE_LIST:$(LOCAL_PATH)/%=%)                 

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LOCAL_C_INCLUDES := $(LOCAL_PATH)/../../../external/Box2D/ 

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  $(FILE_INCLUDES) 

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LOCAL_WHOLE_STATIC_LIBRARIES := cocos2dx_static cocosdenshion_static cocos_extension_static box2d_static

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include $(BUILD_SHARED_LIBRARY)

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$(call import-module,CocosDenshion/android) 

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$(call import-module,cocos2dx) 

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$(call import-module,extensions) 

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$(call import-module,external/Box2D)