gnuanu · January 24, 2024 08:20 · rifatcakir · Aug 26, 2016 · ademcan · Mar 22, 2018
diff --git a/01.step1.md b/01.step1.md
diff --git a/02.JNIActivity.java b/02.JNIActivity.java
 package com.jnisample.JNIHelloWorld;

 import android.app.Activity;
 import android.os.Bundle;
 import android.view.View;
 import android.widget.Button;
 import android.widget.TextView;
 import org.w3c.dom.Text;

 public class JNIActivity extends Activity {

    public native String getNativeMessage();

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

    Button btnInvokeJNI;
    TextView tvNativeMsg;

    /**
     * Called when the activity is first created.
     */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        btnInvokeJNI = (Button) findViewById(R.id.btnInvokeJni);
        tvNativeMsg = (TextView) findViewById(R.id.txtJniText);

        btnInvokeJNI.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                tvNativeMsg.setText(getNativeMessage());
            }
        });
    }
 }
diff --git a/03.step2.md b/03.step2.md
diff --git a/04.com_jnisample_JNIHelloWorld_JNIActivity.h b/04.com_jnisample_JNIHelloWorld_JNIActivity.h
 /* DO NOT EDIT THIS FILE - it is machine generated */
 #include <jni.h>
 /* Header for class com_jnisample_JNIHelloWorld_JNIActivity */

 #ifndef _Included_com_jnisample_JNIHelloWorld_JNIActivity
 #define _Included_com_jnisample_JNIHelloWorld_JNIActivity
 #ifdef __cplusplus
 extern "C" {
 #endif
 /*
 * Class:     com_jnisample_JNIHelloWorld_JNIActivity
 * Method:    getNativeMessage
 * Signature: ()Ljava/lang/String;
 */
 JNIEXPORT jstring JNICALL Java_com_jnisample_JNIHelloWorld_JNIActivity_getNativeMessage
  (JNIEnv *, jobject);

 #ifdef __cplusplus
 }
 #endif
 #endif
diff --git a/05.step3.md b/05.step3.md
diff --git a/06.helloworld.h b/06.helloworld.h
 #ifndef HELLOWORLD_H
 #define HELLOWORLD_H

 #include <string>

 using namespace std;

 class HelloWorld
 {
 public:
    HelloWorld();
    string getNativeString();
 };

 #endif // HELLOWORLD_H
diff --git a/07.helloworld.cpp b/07.helloworld.cpp
 #include "helloworld.h"

 HelloWorld::HelloWorld()
 {
 }

 string HelloWorld::getNativeString()
 {
    return "Hello World from JNI";
 }
diff --git a/08.step4.md b/08.step4.md
diff --git a/09.jni_entry.cpp b/09.jni_entry.cpp
 #include "com_jnisample_JNIHelloWorld_JNIActivity.h"
 #include "helloworld.h"

 JNIEXPORT jstring JNICALL Java_com_jnisample_JNIHelloWorld_JNIActivity_getNativeMessage
  (JNIEnv* pEnv, jobject pThis)
 {
    HelloWorld hello;
    return pEnv->NewStringUTF(hello.getNativeString().c_str());
 }
diff --git a/10.step5.md b/10.step5.md
diff --git a/11.Android.mk b/11.Android.mk
 LOCAL_PATH := $(call my-dir)

 include $(CLEAR_VARS)

 LOCAL_MODULE := mynative
 LOCAL_SRC_FILES := helloworld.cpp jni_entry.cpp

 include $(BUILD_SHARED_LIBRARY)
diff --git a/12.Application.mk b/12.Application.mk
 # This variable enables the inclusion of STL classes
 APP_STL := stlport_static
diff --git a/13.step6.md b/13.step6.md
	package com.jnisample.JNIHelloWorld;

	import android.app.Activity;
	import android.os.Bundle;
	import android.view.View;
	import android.widget.Button;
	import android.widget.TextView;
	import org.w3c.dom.Text;

	public class JNIActivity extends Activity {

	public native String getNativeMessage();

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

	Button btnInvokeJNI;
	TextView tvNativeMsg;

	/**
	* Called when the activity is first created.
	*/
	@Override
	public void onCreate(Bundle savedInstanceState) {
	super.onCreate(savedInstanceState);
	setContentView(R.layout.main);

	btnInvokeJNI = (Button) findViewById(R.id.btnInvokeJni);
	tvNativeMsg = (TextView) findViewById(R.id.txtJniText);

	btnInvokeJNI.setOnClickListener(new View.OnClickListener() {
	@Override
	public void onClick(View v) {
	tvNativeMsg.setText(getNativeMessage());
	}
	});
	}
	}
	/* DO NOT EDIT THIS FILE - it is machine generated */
	#include <jni.h>
	/* Header for class com_jnisample_JNIHelloWorld_JNIActivity */

	#ifndef _Included_com_jnisample_JNIHelloWorld_JNIActivity
	#define _Included_com_jnisample_JNIHelloWorld_JNIActivity
	#ifdef __cplusplus
	extern "C" {
	#endif
	/*
	* Class: com_jnisample_JNIHelloWorld_JNIActivity
	* Method: getNativeMessage
	* Signature: ()Ljava/lang/String;
	*/
	JNIEXPORT jstring JNICALL Java_com_jnisample_JNIHelloWorld_JNIActivity_getNativeMessage
	(JNIEnv *, jobject);

	#ifdef __cplusplus
	}
	#endif
	#endif
	#ifndef HELLOWORLD_H
	#define HELLOWORLD_H

	#include <string>

	using namespace std;

	class HelloWorld
	{
	public:
	HelloWorld();
	string getNativeString();
	};

	#endif // HELLOWORLD_H
	#include "helloworld.h"

	HelloWorld::HelloWorld()
	{
	}

	string HelloWorld::getNativeString()
	{
	return "Hello World from JNI";
	}
	#include "com_jnisample_JNIHelloWorld_JNIActivity.h"
	#include "helloworld.h"

	JNIEXPORT jstring JNICALL Java_com_jnisample_JNIHelloWorld_JNIActivity_getNativeMessage
	(JNIEnv* pEnv, jobject pThis)
	{
	HelloWorld hello;
	return pEnv->NewStringUTF(hello.getNativeString().c_str());
	}
	LOCAL_PATH := $(call my-dir)

	include $(CLEAR_VARS)

	LOCAL_MODULE := mynative
	LOCAL_SRC_FILES := helloworld.cpp jni_entry.cpp

	include $(BUILD_SHARED_LIBRARY)
	# This variable enables the inclusion of STL classes
	APP_STL := stlport_static