🔥 Android Studio 版本 🔥 

🔥 基础类型数据的转换 🔥

定义传递基础数据类型到JNI的函数

package com.cmake.ndk1.jni;

public class JNIBasicType{
    static{
        System.loadLibrary("native-lib");
    }

    public native int callNativeInt(int num);
    public native byte callNativeByte(byte b);
    public native char callNativeChar(char ch);
    public native short callNativeShort(short sh);
    public native long callNativeLong(long l);
    public native float callNativeFloat(float f);
    public native double callNativeDouble(double d);
    public native boolean callNativeBool(boolean  b);
};

创建callNativeInt 提供给Java调用

#include <base.h>
#include <jni.h>