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   源码介绍

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  adroid netty自己写的简单例子

package com.txn.day3;

import java.net.InetSocketAddress;

import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;
import io.netty.bootstrap.Bootstrap;
import io.netty.channel.Channel;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelOption;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.nio.NioSocketChannel;

public class ClientActivity extends Activity {
	private static final String TAG = "MainActivity";
	private static Context context;
	//0x开头表示十六进制的数值
	public static int MSG_REC = 0xabc;
	public static int PORT = 9090;
	public static final String HOST = "172.16.2.44";
	private NioEventLoopGroup group;
	private ChannelFuture cf;
	private Channel mChannel;
	private Button sendButton;
	private Handler mHandler = new Handler() {
		@Override
		public void handleMessage(Message msg) {
			if (msg.what == MSG_REC) {
				Toast.makeText(context, msg.obj.toString(), 1000).show();
			}
		}
	};

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		context = this;
		connected();
		sendButton = (Button) findViewById(R.id.netty_send_button);
		sendButton.setOnClickListener(new OnClickListener() {
			@Override
			public void onClick(View v) {
				sendMessage();
			}
		});
	}

	// 连接到Socket服务端
	private void connected() {
		new Thread() {
			@Override
			public void run() {
				group = new NioEventLoopGroup();
				try {
					// 创建Bootstrap，且构造函数变化很大，这里用无参构造。
					Bootstrap bootstrap = new Bootstrap();
					// 指定EventLoopGroup
					bootstrap.group(group);
					// 指定channel类型
					bootstrap.channel(NioSocketChannel.class);
					// 指定Handler
					bootstrap.handler(new MyClientInitializer(context, mHandler));
					bootstrap.option(ChannelOption.SO_KEEPALIVE, true);
					bootstrap.option(ChannelOption.TCP_NODELAY, true);
					cf = bootstrap.connect(new InetSocketAddress(HOST, PORT));
					mChannel = cf.sync().channel();
				} catch (Exception e) {
					Log.i("main", e.toString());
				}
			}
		}.start();
	}

	// 发送数据
	private void sendMessage() {
		mHandler.post(new Runnable() {
			@Override
			public void run() {
				try {
					// Log.i(TAG, "mChannel.write sth & "   mChannel.isOpen());
					mChannel.writeAndFlush("hello,this message is from client.\r\n");
					mChannel.read();
				} catch (Exception e) {
					e.printStackTrace();
				}
			}
		});
	}

	@Override
	protected void onDestroy() {
		super.onDestroy();
		if (group != null) {
			group.shutdownGracefully();
		}
	}

}