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= 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= '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; iPC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();
}
}
}以上是“android如何实现蓝牙控制PC端”这篇文章的所有内容，感谢各位的阅读！相信大家都有了一定的了解，希望分享的内容对大家有所帮助，如果还想学习更多知识，欢迎关注创新互联行业资讯频道！
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