Android之JNI：Android Studio使用Gradle编译C/C++源码

package com.coca.firstdemo;

/**
 * Created by Administrator on 2016/6/6.
 */
public class JniShareUtils {
    public native String getLogCount(String params);
}

/* DO NOT EDIT THIS FILE - it is machine generated */
#include <jni.h>
/* Header for class com_coca_firstdemo_JniShareUtils */

#ifndef _Included_com_coca_firstdemo_JniShareUtils
#define _Included_com_coca_firstdemo_JniShareUtils
#ifdef __cplusplus
extern "C" {
#endif
/*
 * Class:     com_coca_firstdemo_JniShareUtils
 * Method:    getLogCount
 * Signature: (Ljava/lang/String;)Ljava/lang/String;
 */
JNIEXPORT jstring JNICALL Java_com_coca_firstdemo_JniShareUtils_getLogCount
  (JNIEnv *, jobject, jstring);

#ifdef __cplusplus
}
#endif
#endif

#include "com_coca_firstdemo_JniShareUtils.h"

JNIEXPORT jstring JNICALL Java_com_coca_firstdemo_JniShareUtils_getLogCount
        (JNIEnv *env, jobject obj, jstring jstr){
    return (*env)->NewStringUTF(env,"This just a test for Android Studio NDK JNI developer!");
}

defaultConfig {
    //...
    ndk{
        moduleName "wangjun_so_jni"          //生成的so名字,名字随意
        abiFilters "armeabi", "armeabi-v7a", "x86" //输出指定三种abi体系结构下的so库。目前可有可无。
    }
}

static {
    System.loadLibrary("wangjun_so_jni");//与上述build.gradle中定义的moduleName对应
}

package com.android.build.gradle.internal.dsl;
/**
 * DSL object for NDK-related settings.
 */
public class NdkOptions implements CoreNdkOptions, Serializable {
    private static final long serialVersionUID = 1L;

    private String moduleName;
    private String cFlags;
    private List<String> ldLibs;
    private Set<String> abiFilters;
    private String stl;
    private Integer jobs;
}