android如何实现蓝牙控制PC端

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引言

在安卓端通过蓝牙发送指令到PC端，java程序接收指令，并执行相应的动作。其中指令格式有所规范，PC端的java程序通过robot库进行操作

代码

控制类remotePC.java

import java.awt.AWTException; import java.awt.Dimension; import java.awt.Robot; import java.awt.Toolkit; import java.awt.event.InputEvent; import java.awt.event.KeyEvent; import java.io.IOException; public class remotePC {   //保存当前鼠标指针的坐标（px,py）   private static int px;   private static int py;   //最大延迟时间：1秒   public static final int MAX_DELAY = 1000;   //最小间隔时间：1毫秒   public static final int SAMPLE_TIME_DIV = 1;   //魔法数字，用于设置默认的事件delay时间间隔   private final double magicX = 1.0;   //视觉延迟：默认100ms   private final int VISIBAL_MOVEMENT = 100;   //PC屏幕尺寸   private int screenWidth;   private int screenHeight;   //手机屏幕尺寸   private int mobileWidth;   private int mobileHeight;   //手机电脑尺寸转换的比例   private double widScale;   private double heiScale;   //用于控制的robot类   private Robot robot;   //默认构造函数   public remotePC() throws AWTException{     this(1366, 768);   }   //构造函数，指定手机屏幕尺寸   public remotePC(int mobileWidth, int mobileHeight) throws AWTException{     robot = new Robot();     robot.setAutoDelay((int)magicX);     setScreenSize();     this.mobileHeight = mobileHeight;     this.mobileWidth = mobileWidth;     setScale();   }   public void moveToCenter(){     this.move(screenWidth/2, screenHeight/2, 1);   }   //[鼠标光标移动]   //dt:间隔时间，时间长短对应速度   //dx,dy:手机上移动的相对横纵位移，自动转换为pc上应该移动的尺寸   public void move(int dx, int dy, int dt){     double deltaX = (1.0*dx/widScale);     double deltaY = (1.0*dy/heiScale);     int dxpms = (int)deltaX/dt;     int dypms = (int)deltaY/dt;     for(int i=0; i<dt; i++){       px += dxpms;       py += dypms;       if(px <= 0){         px = 0;       }else if(px >= screenWidth){         px = screenWidth;       }       if(py <= 0){         py = 0;       }else if(py >= screenHeight){         py = screenHeight;       }       robot.mouseMove((int)px, (int)py);     }   }   //[按下鼠标左键]   public void pressMouseL(){     robot.mousePress(InputEvent.BUTTON1_DOWN_MASK);   }   //[释放鼠标左键]   public void releaseMouseL(){     robot.mouseRelease(InputEvent.BUTTON1_DOWN_MASK);   }   //[点击一下鼠标左键]   public void clickMouseL(){     this.pressMouseL();     this.releaseMouseL();   }   //[按下鼠标右键]   public void pressMouseR(){     robot.mousePress(InputEvent.BUTTON3_DOWN_MASK);   }   //[释放鼠标右键]   public void releaseMouseR(){     robot.mouseRelease(InputEvent.BUTTON3_DOWN_MASK);   }   //[点击鼠标右键]   public void clickMouseR(){     this.pressMouseR();     this.releaseMouseR();   }   //[按下滚轮]   public void pressWheel(){     robot.mousePress(InputEvent.BUTTON2_DOWN_MASK);   }   //[释放滚轮]   public void releaseWheel(){     robot.mouseRelease(InputEvent.BUTTON2_DOWN_MASK);   }   //[滚轮往下移动]：step是移动步数，相对于滚轮的一格   public void wheelDown(int step){     for(int i=0; i<step; i++){       robot.mouseWheel(1);     }   }   //[滚轮往上移动]：step是移动步数，相对于滚轮的一格   public void wheelUp(int step){     for(int i=0; i<step; i++){       robot.mouseWheel(-1);     }   }   //[敲一格字符：A-Z]：c为字母的char类型字符，必须是大写的   public void printChar(char c){     if(c <= 'Z' && c >= 'A'){       robot.keyPress((int)c);       robot.keyRelease((int)c);     }   }   //[敲一个空格]   public void printSpace(){     robot.keyPress(KeyEvent.VK_SPACE);     robot.keyRelease(KeyEvent.VK_SPACE);   }   //[放大]相当于ctrl+滚轮上移   public void zoomIn(int step){     robot.keyPress(KeyEvent.VK_CONTROL);     for(int i=0; i<step; i++)       robot.mouseWheel(-1);     robot.keyRelease(KeyEvent.VK_CONTROL);   }   //[缩小]相当于ctrl+滚轮下移   public void zoomOut(int step){     robot.keyPress(KeyEvent.VK_CONTROL);     for(int i=0; i<step; i++)       robot.mouseWheel(1);     robot.keyRelease(KeyEvent.VK_CONTROL);   }   //[显示app切换栏]相当于alt+tab，并且alt不放开，一旦调用该函数后，需要手动调用closeSwitchApps()来释放alt按键   public void showSwitchApps(){     robot.keyPress(KeyEvent.VK_ALT);     robot.keyPress(KeyEvent.VK_TAB);     robot.keyRelease(KeyEvent.VK_TAB);     //robot.keyRelease(KeyEvent.VK_ALT);   }   //[app向右切换]相当于在按了alt+tab的情况下再按一次tab   public void tabRight(){     robot.keyPress(KeyEvent.VK_TAB);     robot.keyRelease(KeyEvent.VK_TAB);   }   //[app向左切换]相当于在按了alt+tab的情况下再按一次shift+tab   public void tabLeft(){     robot.keyPress(KeyEvent.VK_SHIFT);     robot.keyPress(KeyEvent.VK_TAB);     robot.keyRelease(KeyEvent.VK_TAB);     robot.keyRelease(KeyEvent.VK_SHIFT);   }   //[关闭app切换栏]在使用showSwitchApps()后必须调用该函数来释放alt   public void closeSwitchApps(){     robot.keyRelease(KeyEvent.VK_ALT);   }   //[app回切/左切一次]：按下shift+alt+tab，并释放   public void simpleLeftSwitchApp(){     this.showSwitchApps();     this.delay(VISIBAL_MOVEMENT);     this.tabLeft();     this.tabLeft();     this.delay(VISIBAL_MOVEMENT);     this.closeSwitchApps();   }   //[app切换/右切一次]：按下alt+tab，并释放   public void simpleRightSwitchApp(){     this.showSwitchApps();     this.delay(VISIBAL_MOVEMENT);     this.closeSwitchApps();   }   //[显示当前window下所有app]：相当于window+tab   public void listAppsWindow(){     robot.keyPress(KeyEvent.VK_WINDOWS);     robot.keyPress(KeyEvent.VK_TAB);     robot.keyRelease(KeyEvent.VK_TAB);     robot.keyRelease(KeyEvent.VK_WINDOWS);   }   //[显示桌面/隐藏app]：相当于window+M   public void showDesktop(){     robot.keyPress(KeyEvent.VK_WINDOWS);     robot.keyPress(KeyEvent.VK_M);     robot.keyRelease(KeyEvent.VK_M);     robot.keyRelease(KeyEvent.VK_WINDOWS);   }   //[当前窗口最大化]：相当于window+UP   public void windowUp(){     robot.keyPress(KeyEvent.VK_WINDOWS);     robot.keyPress(KeyEvent.VK_UP);     robot.keyRelease(KeyEvent.VK_UP);     robot.keyRelease(KeyEvent.VK_WINDOWS);   }   //[取消当前窗口最大化]:相当于window+DOWN   public void windowDown(){     robot.keyPress(KeyEvent.VK_WINDOWS);     robot.keyPress(KeyEvent.VK_DOWN);     robot.keyRelease(KeyEvent.VK_DOWN);     robot.keyRelease(KeyEvent.VK_WINDOWS);   }   //[窗口置于左侧/多窗口并排]：相当于window+LEFT   public void windowLeft(){     //TODO: window + Left     robot.keyPress(KeyEvent.VK_WINDOWS);     robot.keyPress(KeyEvent.VK_LEFT);     robot.keyRelease(KeyEvent.VK_LEFT);     robot.keyRelease(KeyEvent.VK_WINDOWS);   }   //[窗口置于右侧/多窗口并排]：相当于window+RIGHT   public void windowRight(){     //TODO: window + Right     robot.keyPress(KeyEvent.VK_WINDOWS);     robot.keyPress(KeyEvent.VK_RIGHT);     robot.keyRelease(KeyEvent.VK_RIGHT);     robot.keyRelease(KeyEvent.VK_WINDOWS);   }   //[切换桌面:左切]:window+control+left   public void leftSwitchWindow(){     robot.keyPress(KeyEvent.VK_WINDOWS);     robot.keyPress(KeyEvent.VK_CONTROL);     robot.keyPress(KeyEvent.VK_LEFT);     robot.keyRelease(KeyEvent.VK_LEFT);     robot.keyRelease(KeyEvent.VK_CONTROL);     robot.keyRelease(KeyEvent.VK_WINDOWS);   }   //[切换桌面:右切]:window+control+right   public void rightSwitchWindow(){     robot.keyPress(KeyEvent.VK_WINDOWS);     robot.keyPress(KeyEvent.VK_CONTROL);     robot.keyPress(KeyEvent.VK_RIGHT);     robot.keyRelease(KeyEvent.VK_RIGHT);     robot.keyRelease(KeyEvent.VK_CONTROL);     robot.keyRelease(KeyEvent.VK_WINDOWS);   }   //[快速打开记事本]   public void openNotepad(){     try {       Runtime.getRuntime().exec("notepad");     } catch (IOException e) {       // TODO Auto-generated catch block       e.printStackTrace();     }   }   //[快速打开画图板]   public void openPaint(){     try {       Runtime.getRuntime().exec("mspaint");     } catch (IOException e) {       // TODO Auto-generated catch block       e.printStackTrace();     }   }   //[ppt笔]   public void setDraw(){     robot.keyPress(KeyEvent.VK_CONTROL);     robot.keyPress(KeyEvent.VK_P);     robot.keyRelease(KeyEvent.VK_CONTROL);     robot.keyRelease(KeyEvent.VK_P);   }   //[ppt激光笔]   public void setLaser(){     robot.keyPress(KeyEvent.VK_CONTROL);     robot.keyPress(KeyEvent.VK_L);     robot.keyRelease(KeyEvent.VK_CONTROL);     robot.keyRelease(KeyEvent.VK_L);   }   //[ppt荧光笔]   public void setMark(){     robot.keyPress(KeyEvent.VK_CONTROL);     robot.keyPress(KeyEvent.VK_I);     robot.keyRelease(KeyEvent.VK_CONTROL);     robot.keyRelease(KeyEvent.VK_I);   }   //[ppt隐藏鼠标]   public void hideMouse(){     robot.keyPress(KeyEvent.VK_CONTROL);     robot.keyPress(KeyEvent.VK_H);     robot.keyRelease(KeyEvent.VK_CONTROL);     robot.keyRelease(KeyEvent.VK_H);   }   //[ppt 上一张]   public void prevSlide(){     robot.keyPress(KeyEvent.VK_LEFT);     robot.keyRelease(KeyEvent.VK_LEFT);   }   //[ppt 下一张]   public void nextSlide(){     robot.keyPress(KeyEvent.VK_RIGHT);     robot.keyRelease(KeyEvent.VK_RIGHT);   }   //延迟函数，延迟ms个毫秒   public void delay(int ms){     robot.delay(ms);   }   //获得当前PC屏幕的尺寸   public void setScreenSize(){     Dimension screensize = Toolkit.getDefaultToolkit().getScreenSize();     screenWidth = (int)screensize.getWidth();     screenHeight = (int)screensize.getHeight();   }     //打印当前PC屏幕的尺寸   public String getScreenInfo(){     return "screenSize:"+screenWidth+"*"+screenHeight;   }   //设置手机和PC屏幕尺寸的转换比   private void setScale(){     heiScale = -1.0 / 1.5;     widScale = 1.0 / 3.0;   } }

PC端通过蓝牙和安卓app交互：BluetoothServer.java

/**  * Created by luyudi on 2016/11/9.  * Modified by Lannooo on 2016/12/4.  */ // server import java.awt.*; import java.io.InputStream; import java.io.IOException; import javax.bluetooth.UUID; import javax.microedition.io.Connector; import javax.microedition.io.StreamConnection; import javax.microedition.io.StreamConnectionNotifier; public class BlueToothServer implements Runnable {   private remotePC Controller;   // 下面的UUID必须和手机客户端的UUID相一致   private static UUID ECHO_SERVER_UUID= new UUID("aeb9f938a1a34947ace29ebd0c67adf1", false);   // 流连接通知 用于创建流连接   private StreamConnectionNotifier myPCConnNotifier = null;   // 流连接   private StreamConnection streamConn = null;   // 接受数据字节流   // 接收x y 坐标   private byte[] acceptedByteArray = new byte[1024];   // 读取（输入）流   private InputStream inputStream = null;   // 主线程   public static void main(String[] args) {     new BlueToothServer();   }   public BlueToothServer() {     try {       String url = "btspp://localhost:" + ECHO_SERVER_UUID.toString();       // 得到流连接通知       myPCConnNotifier = (StreamConnectionNotifier) Connector.open(url);       Controller = new remotePC();     } catch (Exception e) {       // TODO Auto-generated catch block       e.printStackTrace();     }     // 打开连接通道并读取流线程     new Thread(this).start();   }   public static int getInt(byte[] bytes){     return (0xff & bytes[3])       |         (0xff00 & (bytes[2] << 8))  |         (0xff0000 & (bytes[1] << 16)) |         (0xff000000 & (bytes[0] << 24));   }   public static float getFloat(byte[] b){     return Float.intBitsToFloat(getInt(b));   }   @Override   public void run() {     try {       boolean isMouseLPressed = false;       boolean isWheelPressed = false;       boolean end = false;       while (true) {         // 持续保持着监听客户端的连接请求         // 获取流连接         streamConn = myPCConnNotifier.acceptAndOpen();         // 获取流通道         inputStream = streamConn.openInputStream();         // 循环读取字节流，判断code类型和x，y坐标         while (inputStream.read(acceptedByteArray) != -1) {           String acceptString = new String(acceptedByteArray);           int index;           if((index = acceptString.indexOf("RemoteTouch")) != -1) {             byte[] codeBytes = new byte[4];             byte[] dxBytes = new byte[6];             byte[] dyBytes = new byte[6];             System.arraycopy(acceptedByteArray, index + 11, codeBytes, 0, 4);             System.arraycopy(acceptedByteArray, index + 15, dyBytes, 0, 6);             System.arraycopy(acceptedByteArray, index + 21, dxBytes, 0, 6);             int dy = Integer.parseInt(new String(dyBytes));             int dx = Integer.parseInt(new String(dxBytes));             int code = getInt(codeBytes);             if (end) {               inputStream.close();               if (streamConn != null) {                 streamConn.close();                 System.out.println("Disconnected...");               }               break;             }             switch (code) {               case 1://按下鼠标左键                 isMouseLPressed = true;                 Controller.pressMouseL();                 System.out.println("Pressing mouse L");                 break;               case 2://释放鼠标左键                 if (isMouseLPressed) {                   Controller.releaseMouseL();                   System.out.println("Released mouse L");                   isMouseLPressed=false;                 }                 break;               case 3://点击鼠标左键                 Controller.clickMouseL();                 System.out.println("Clicked mouse L");                 break;               case 4://点击鼠标右键                 Controller.clickMouseR();                 System.out.println("Clicked mouse R");                 break;               case 5://按下滚轮 //           isWheelPressed = true; //           Controller.pressWheel(); //           System.out.println("Pressing wheel");                 break;               case 6://释放滚轮 //           if(isWheelPressed){ //             Controller.releaseWheel(); //             System.out.println("Released wheel"); //           }                 break;               case 7://滚轮滚动                 int step = Math.abs(dy) / 40;                 System.out.println("wheel");                 if (dy > 0) {                   Controller.wheelDown(step);                   System.out.printf("Wheel Down:%d steps. dy=%d\n", step, dy);                 } else {                   Controller.wheelUp(step);                   System.out.printf("Wheel Up:%d steps. dy=%d\n", step, dy);                 }                 break;               case 8://放大、缩小                 double s = Math.sqrt((double) (dx * dx + dy * dy));                 if (dx < 0) {                   Controller.zoomOut((int) s / 20);                   System.out.printf("Zoom out %d steps. dx=%d,dy=%d\n", (int) s / 20, dx, dy);                 } else {                   Controller.zoomIn((int) s / 20);                   System.out.printf("Zoom in %d steps. dx=%d,dy=%d\n", (int) s / 20, dx, dy);                 }                 break;               case 9://显示可切换apps                 Controller.listAppsWindow();                 System.out.println("show Switch apps");                 break;               case 10://显示桌面                 Controller.showDesktop();                 System.out.println("show desktop");                 break;               case 11://app 右切                 Controller.simpleRightSwitchApp();                 System.out.println("switch app: right");                 break;               case 12://app 左切                 Controller.simpleLeftSwitchApp();                 System.out.println("switch app: left");                 break;               case 13://window 右切                 Controller.rightSwitchWindow();                 System.out.println("switch window right");                 break;               case 14://window 左切                 Controller.leftSwitchWindow();                 System.out.println("switch window left");                 break;               case 15://鼠标左键双击                 Controller.clickMouseL();                 Controller.delay(1);                 Controller.clickMouseL();                 System.out.println("clicked double mouse L");                 break;               case 16://鼠标移动                 Controller.move(dx, dy, 1);                 //System.out.printf("Move mouse:dx=%d,dy=%d\n", dx, dy);                 break;               case 17://左分屏                 Controller.windowLeft();                 System.out.println("Window divide: left");                 break;               case 18://右分屏                 Controller.windowRight();                 System.out.println("Window divide: right");                 break;               case 19: //上一张ppt                 Controller.prevSlide();                 System.out.println("previous slide");                 break;               case 20:                 Controller.nextSlide();                 System.out.println("Next Slide");                 break;               case 32: // PPT设置为隐藏鼠标                 Controller.hideMouse();                 System.out.println("Hide");                 break;               case 33: // ppt激光笔                 Controller.setLaser();                 System.out.println("Laser");                 break;               case 34: // ppt笔                 Controller.setDraw();                 System.out.println("Draw");                 break;               case 35: // ppt 荧光笔                 Controller.setMark();                 System.out.println("Mark");                 break;               case 100://退出                 end = true;                 System.out.println("Quit.");                 break;               default://未识别                 System.out.println("Unknown code");                 break;             }           }           // clear data           acceptedByteArray = new byte[1024];         }       }     } catch (IOException e) {       e.printStackTrace();     }   } }

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