Android jni示例

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public class JavaCallJNI {

    static  {
        System.loadLibrary("JNITest");
    }


    public static native int showValue(int value);

}

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/* DO NOT EDIT THIS FILE - it is machine generated */

#include <jni.h>

/* Header for class com_ksnowlv_hellojniforjava_JavaCallJNI */

#ifndef _Included_com_ksnowlv_hellojniforjava_JavaCallJNI

#define _Included_com_ksnowlv_hellojniforjava_JavaCallJNI

#ifdef __cplusplus

extern "C" {

#endif
/*
 * Class:     com_ksnowlv_hellojniforjava_JavaCallJNI
 * Method:    showValue
 * Signature: (I)I
 */

JNIEXPORT jint JNICALL Java_com_ksnowlv_hellojniforjava_JavaCallJNI_showValue
  (JNIEnv *, jclass, jint);
  
  #ifdef __cplusplus
}

#endif

#endif

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#include "com_ksnowlv_hellojniforjava_JavaCallJNI.h"
#include "PersonExtension.hpp"
#include "JNILog.h"


JNIEXPORT jint JNICALL Java_com_ksnowlv_hellojniforjava_JavaCallJNI_showValue
  (JNIEnv * enc, jclass cls , jint value) {

    LOGI("jni value = %d",value);
	value = value + 1;
	LOGI("jni value +1 = %d",value);
    return value;
  }
  

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      int value =  JavaCallJNI.showValue(1);
      Log.e("#### value ","" + value);