我用了一个开源的项目，winio。可以将键盘的信息直接发给主板，这样一些游戏也可以接收了按键消息了。Winio的相关资料可以在网上搜到。由于我的系统是64位的，在使用过程中遇到了一些问题，主要是winio驱动签名的问题。具体解决方法：http://www.cnblogs.com/wangqian0realmagic/archive/2012/03/26/2418671.html

我用VS2010进行客户端的开发，这时动态载入winio64.dll时，会出现如下错误“System.DllNotFoundException……无法加载 DLL“WinIo64.dll”: 找不到指定的模块。 (异常来自 HRESULT:0x8007007E)“。是因为VS2010内部平台默认是X86的，所以要改一下，生成->配置管理器->平台，设为X64即可。

PC端和Android端的USB通信要经过端口转换，要在C#中动态使用adb.exe的forward命令。

代码：

MsgTcpClient:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net.Sockets;
using System.Net;
 
namespace GameHandles
{
    class MsgTcpClient
    {
        //数据定义
        Socket msgClient;
        static int serverport = 60001;
        string ip;
 
        public MsgTcpClient()
        {
            msgClient = new Socket(AddressFamily.InterNetwork,SocketType.Stream,ProtocolType.Tcp);
        }
 
        //尝试连接如果成功返回true，失败返回false
        public bool Connect(string ipstring)
        {
            ip = ipstring;
            IPEndPoint ipendpoint = new IPEndPoint(IPAddress.Parse(ip), serverport);
            try
            {
                msgClient.Connect(ipendpoint);
                return true;
            }catch
            {
                return false;
            }
        }
 
        //接收获得的命令
        public string getMsg()
        {
            string msgGot = "";
            byte[] tmpmsg = new byte[8];
            int length = 0;
            try
            {
                Console.WriteLine("start to recieve");
                length = msgClient.Receive(tmpmsg, tmpmsg.Length, 0);
                msgGot = Encoding.ASCII.GetString(tmpmsg, 0, length);
            }
            catch
            { }
            return msgGot;
        }
 
        public void Close()
        {
            msgClient.Close();
        }
    }
}

　　主程序部分：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Net.Sockets;
using System.Diagnostics;
using System.Threading;
 
namespace GameHandles
{
    public partial class Form1 : Form
    {
        //数据定义
        winioManpulate winioKey;
        MsgTcpClient msgClient;//接收Android服务器发来的信息
        string serverip = "127.0.0.1";
        Thread winioThread;
        Keys[] keycode = {Keys.A,Keys.W,Keys.D,Keys.S,Keys.U,Keys.J,Keys.K,Keys.I};
        public Form1()
        {
            InitializeComponent();
        }
 
        private void Form1_Load(object sender, EventArgs e)
        {
            winioKey = new winioManpulate();
            msgClient = new MsgTcpClient();
        }
 
        //控制winio
        private void changeKeys()
        {
            while(true)
            {
                string msgGot = "";
                msgGot = msgClient.getMsg();
                Console.WriteLine(msgGot);
                //Thread.Sleep(3000);
                if (msgGot.Equals("") == false)
                {
                    for (int i = 0; i < msgGot.Length; ++i)
                    {
                        if (msgGot[i] == '1')
                        {
                            winioKey.KeyDown(keycode[i]);
                            //label1.Text = "keydown";
                        }
                        else
                        {
                            winioKey.KeyUp(keycode[i]);
                        }
                    }
                     
                }
            }
        }
 
        //开始，设置adb，进行Tcp连接
        private void btnConnect_Click(object sender, EventArgs e)
        {
            //设置adb
            Process adbprocess = new Process();
            adbprocess.StartInfo.FileName = @"adb.exe";
            adbprocess.StartInfo.Arguments = @"forward tcp:60001 tcp:60001";
            adbprocess.Start();
            Thread.Sleep(100);
            //连接server
            if (msgClient.Connect(serverip) == true)//如果连接成功
            {
                winioKey.Initialize();
                Thread.Sleep(100);
                btnStop.Enabled = true;
                btnConnect.Enabled = false;
                winioThread = new Thread(new ThreadStart(changeKeys));
                winioThread.Start();
                label1.Text = "begin";
            }
        }
 
        private void btnStop_Click(object sender, EventArgs e)
        {
            winioThread.Abort();
            msgClient.Close();
            winioKey.Shutdown();
        }
    }
}

Android端：

Android作为socket服务器与普通的java程序差别不大，用ServerSocket类。只是要在AndroidManifest.xml中添加<uses-permission android:name="android.permission.INTERNET" />

还要将屏幕强制设为横屏：setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);

但是在实际编码过程中遇到一些问题，我在onCreate中初始了ServerSocket对象，而setRequestedOrientation会重新执行onCreate()，这样就重复初始化了ServerSocket对象，会提示地址已占用的错误。所以先将ServerSocket对象设为null，初始化之前先判断是否为null，再初始化。

手柄的按键用多点触控的技术实现。我写了一个继承View的类HandlePanel，在onDraw方法中绘制了8个按键。然后在Activity类中设置HandlePanel.setOnTouchListener，进行相关操作。这里又遇到一个问题，我第一次用的是Android2.1的系统，这版系统中不能精确的获得是那个点出发了相应的事件，如：我在屏幕上按了两只手指，抬起一只时，无法辨别是哪只手指抬起，只能同时获得两点的坐标。在网上也没发现解决的办法后来看Android的文档，发现有个event.getActionIndex()的方法可以满足需求，但是只在2.2以上的版本有，无奈啊。

与其他Socket编程一样，ServerSocket对象要close掉，所以我重写了Activity的onStop()方法。但是每次关闭时，都提示意外退出，所以要调用super.onStop();将原先的操作也执行一遍。小错误啊，，不过也要注意一下的。

代码：

Socket服务器类：

package com.mhandle;
import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;
 
 
public class MyServerSocket {
    ServerSocket MyServer;
    Socket mySocket;
    OutputStream os;
    Thread getMsg;
    public MyServerSocket() {
        // TODO Auto-generated constructor stub
        //MyServer = new ServerSocket(60001);
        mySocket = null;
        MyServer = null;
    }
     
    public void connect() throws Exception
    {
        if(MyServer == null)
            MyServer = new ServerSocket(60001);
    }
     
    public void sendMsg(String msg) throws IOException
    {
        if(MyServer != null)
        {
            if(mySocket == null)
                mySocket = MyServer.accept();
            os = mySocket.getOutputStream();
            PrintWriter pWriter = new PrintWriter(os);
            pWriter.write(msg);
            pWriter.flush();
        }
        else
        {
            System.out.println("Out Error");
        }
    }
     
    public void stop() throws IOException
    {
        if(mySocket != null)
            mySocket.close();
        if(MyServer != null)
            MyServer.close();
    }
}

HandlePanel类：

package com.mhandle;
 
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.Rect;
import android.os.IBinder;
import android.util.AttributeSet;
import android.view.Display;
import android.view.MotionEvent;
import android.view.SurfaceHolder;
import android.view.View;
import android.widget.RelativeLayout;
 
public class HandlePanel extends View{
 
    public HandlePanel(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        // TODO Auto-generated constructor stub
        //init();
    }
 
    public HandlePanel(Context context, AttributeSet attrs) {
        super(context, attrs);
        // TODO Auto-generated constructor stub
        //init();
    }
     
    public HandlePanel(Context context) {
        super(context);
        // TODO Auto-generated constructor stub
        //init();
    }
     
    Rect hRects[];
    int rectwidth = 120;
    int VHeight;
    int VWidth;
     
    public void init(int h,int w)
    {
        VHeight = h;
        VWidth = w;
        System.out.println(VHeight+" "+VWidth);
        hRects = new Rect[8];
         
        //方向左上右下，功能键的顺序也是如此
        int tops[] = {(VHeight-rectwidth)/2,
                (VHeight-rectwidth)/2-(rectwidth+10),
                (VHeight-rectwidth)/2,
                (VHeight-rectwidth)/2+(rectwidth+10),
                (VHeight-rectwidth)/2,
                (VHeight-rectwidth)/2-(rectwidth+10),
                (VHeight-rectwidth)/2,
                (VHeight-rectwidth)/2+(rectwidth+10)
                };
        int lefts[] = { (VWidth/2-3*rectwidth-20)/2,
                (VWidth/2-3*rectwidth-20)/2+rectwidth+10,
                (VWidth/2-3*rectwidth-20)/2+2*rectwidth+20,
                (VWidth/2-3*rectwidth-20)/2+rectwidth+10,
                VWidth/2 + (VWidth/2-3*rectwidth-20)/2,
                VWidth/2 + (VWidth/2-3*rectwidth-20)/2 +rectwidth+10,
                VWidth/2 + (VWidth/2-3*rectwidth-20)/2 + 2*rectwidth+20,
                VWidth/2 + (VWidth/2-3*rectwidth-20)/2 + rectwidth+10,
                };
        //System.out.println("left:" + (VWidth/2-3*rectwidth-20)/2);
        //System.out.println(h+" "+w);
        //for(int i=0;i<8;++i)
        //  lefts[i] += 60;
         
        for(int i=0;i<8;++i)
        {
            hRects[i] = new Rect();
            hRects[i].set(lefts[i],tops[i],lefts[i]+rectwidth, tops[i]+rectwidth);
        }
    }
     
    //判断是否点击到按键
    public int inRect(int x, int y)
    {
        for(int i=0;i<8;++i)
        {
            if( x<hRects[i].right && x>hRects[i].left 
                    && y>hRects[i].top && y<hRects[i].bottom)
                return i;
        }
        return -1;
    }
     
    @Override
    public void onDraw(Canvas canvas)
    {
        //int width = 50;
        Paint mPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
        mPaint.setColor(0xFFCBD2D8);
        //绘制按键
        for(int i=0;i<8;++i)
        {
            canvas.drawRect(hRects[i], mPaint);
        }       
    }
}

posted on 2012-12-26 00:25 創丗仼阅读(1083) 评论(0) 编辑收藏举报

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