package com.ndk.hello;

public class Classs {

    public native String say_hello();

    static

    {

        System.loadLibrary("HelloAndroidNDK");

    }

}

javah -classpath ../bin/classes com.ndk.hello.Classs

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

#include <jni.h>

/* Header for class com_ndk_hello_Classs */

#ifndef _Included_com_ndk_hello_Classs

#define _Included_com_ndk_hello_Classs

#ifdef __cplusplus

extern "C" {

#endif

/*

 * Class:     com_ndk_hello_Classs

 * Method:    say_hello

 * Signature: ()Ljava/lang/String;

 */

JNIEXPORT jstring JNICALL Java_com_ndk_hello_Classs_say_1hello

  (JNIEnv *, jobject);

#ifdef __cplusplus

}

#endif

#endif

#include "com_ndk_hello_Classs.h"

JNIEXPORT jstring JNICALL Java_com_ndk_hello_Classs_say_1hello(JNIEnv * env, jobject this)

{

    return (*env)->NewStringUTF(env,"Hello Java NDK!");

}

# Copyright (C)  The Android Open Source Project

#

# Licensed under the Apache License, Version 2.0 (the "License");

# you may not use this file except in compliance with the License.

# You may obtain a copy of the License at

#

#      http://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.

#

LOCAL_PATH := $(call my-dir)

include $(CLEAR_VARS)

LOCAL_MODULE    := HelloAndroidNDK

LOCAL_SRC_FILES := com_ndk_hello_Classs.c

include $(BUILD_SHARED_LIBRARY)

$NDK/ndk-build

package com.ndk.hello;

import com.ndk.hello.Classs;

import android.app.Activity;

import android.os.Bundle;

import android.widget.TextView;

public class HelloAndroidNDK extends Activity{

    @Override

    public void onCreate(Bundle s)

    {

        super.onCreate(s);

        Classs c = new Classs();

        String say = c.say_hello();

        TextView tv = new TextView(this);

        tv.setText(say);

        setContentView(tv);

    }

}