求教关于Socket线程执行中疑惑

[happycompiler]

业务上需实现通过wifi打印机打印功能，子线程创建的socket对象如何返回给主线程？Android新手求教
代码如下：

//调用
WifiPrinterService wifiprinter = new WifiPrinterService("192.168.0.1", 10000, "GBK");
wifiprinter.printText("\t\t Text to The Printer");

public class WifiPrinterService {
	// 定义编码方式
	private static String encoding = null;
	private String ip;
	private int port;
	private Socket sock = null;
	// 通过socket流进行读写
	private OutputStream socketOut = null;
	private OutputStreamWriter writer = null;

	public Handler myHandler = new Handler() {
		@Override
		public void handleMessage(Message msg) {
			Bundle bundle = msg.getData();
			if (msg.what == 0x100) {
				sock = (Socket) msg.obj;
			}
		}
	};
	public WifiPrinterService(String ip, int port, String encoding) {
		try {
			this.ip = ip;
			this.port = port;
			boolean isSocketConnect = false;
			if (sock != null) {
				closeIOAndSocket();
			} else {
				WifiConn.start();
			}
			sock.setSoTimeout(1000 * 3);   //sock对象为null异常
			socketOut = new DataOutputStream(sock.getOutputStream());
			this.encoding = encoding;
			writer = new OutputStreamWriter(socketOut, encoding);
			isSocketConnect = true;
		} catch (Exception e) {
			Log.e("king", e.toString());
		}
	}

	Thread WifiConn = new Thread() {
		@Override
		public void run() {
			try {
				Socket sock = new Socket(ip, port);
				
				Message msg = new Message();
				msg.what = 0x100;
				msg.obj = sock;	
				myHandler.sendMessage(msg);		
				
			} catch (UnknownHostException e) {
				e.printStackTrace();
			} catch (IOException e) {
				e.printStackTrace();
			}
		}
	};

	/**
	 * 打印文字
	 */
	public void printText(String text) throws IOException {
		String s = text;
		byte[] content = s.getBytes("gbk");
		socketOut.write(content);
		socketOut.flush();
	}
}