手机控制ppt翻页源码

package com.android.remotecontrolppt; import java.io.IOException; import java.net.DatagramPacket; import java.net.InetAddress; import java.net.MulticastSocket; import android.app.Activity; import android.os.Bundle; import android.widget.ImageButton; import android.view.GestureDetector; import android.view.GestureDetector.OnGestureListener; import android.view.MotionEvent; import android.view.View; public class RemoteControlPPTActivity extends Activity implements View.OnClickListener,OnGestureListener{ /** * 第一个字节用来区分事件类型（1为鼠标，2为键盘） * 第二个字节用来存放操作指令 * 第三个字节用来存放操作指令值 * 第四个字节为预留 * 第5-12字节为数据位 */ private byte cmdBuffer[] = new byte[Constant.bufferSize]; private ImageButton start = null; private ImageButton stop = null; private ImageButton mouse_left = null; private ImageButton mouse_right = null; private ImageButton move_up = null; private ImageButton move_down = null; private ImageButton previous = null; private ImageButton next = null; private ImageButton center = null; private MulticastSocket multicastSocket = null; private InetAddress remoteInetAddress = null; private GestureDetector mGestureDetector = null; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); mGestureDetector = new GestureDetector(this);//构造方法new GestureDetector(GestureListener listener); start = (ImageButton)findViewById(R.id.start); start.setOnClickListener(this); stop = (ImageButton)findViewById(R.id.stop); stop.setOnClickListener(this); mouse_left = (ImageButton)findViewById(R.id.mouse_left); mouse_left.setOnClickListener(this); mouse_right = (ImageButton)findViewById(R.id.mouse_right); mouse_right.setOnClickListener(this); center = (ImageButton)findViewById(R.id.center); center.setOnClickListener(this); move_up = (ImageButton)findViewById(R.id.move_up); move_up.setOnClickListener(this); move_down = (ImageButton)findViewById(R.id.move_down); move_down.setOnClickListener(this); previous = (ImageButton)findViewById(R.id.previous); previous.setOnClickListener(this); next = (ImageButton)findViewById(R.id.next); next.setOnClickListener(this); } //按钮事件处理 @Override public void onClick(View view) { for(int i=0;i<4;i++)cmdBuffer[i]=0; boolean opr = false; switch(view.getId()){ case R.id.start://播放映片指令 cmdBuffer[0]=Constant.RULE_KEY_EVENT; cmdBuffer[1]=Constant.KEY_F5; opr = true; break; case R.id.stop://停止播放映片指令 cmdBuffer[0]=Constant.RULE_KEY_EVENT; cmdBuffer[1]=Constant.KEY_ESC; opr = true; break; case R.id.center://鼠标左键点击 case R.id.mouse_left://鼠标左键点击 cmdBuffer[0]=Constant.RULE_MOUSE_EVENT; cmdBuffer[1]=Constant.MOUSE_LEFT; opr = true; break; case R.id.mouse_right://鼠标右键点击 cmdBuffer[0]=Constant.RULE_MOUSE_EVENT; cmdBuffer[1]=Constant.MOUSE_RIGHT; opr = true; break; case R.id.move_up://向左翻页 case R.id.previous://向左翻页 cmdBuffer[0]=Constant.RULE_KEY_EVENT; cmdBuffer[1]=Constant.KEY_ARROW_LEFT; opr = true; break; case R.id.move_down://向右翻页 case R.id.next://向右翻页 cmdBuffer[0]=Constant.RULE_KEY_EVENT; cmdBuffer[1]=Constant.KEY_ARROW_RIGHT; opr = true; break; } if(opr){ sendCMD(); } } //向电脑端发送指令 private void sendCMD(){ try { DatagramPacket sdp = new DatagramPacket(cmdBuffer, Constant.bufferSize,remoteInetAddress,Constant.commPort); multicastSocket.send(sdp); } catch (Exception e) { e.printStackTrace(); } } //侦测屏幕滑动事件 @Override public boolean onTouchEvent(MotionEvent event) { /** * 把滑动事件传给GestureDetector进行事件分析，因我们当前实现了GestureDetector.GestureListener接口, * 因此，会把该事件传给下面几个方法来处理 */ return mGestureDetector.onTouchEvent(event); } //初始化Socket连接 @Override protected void onResume() { super.onResume(); try { if(null==multicastSocket){ remoteInetAddress = InetAddress.getByName(Constant.multicastIp); multicastSocket = new MulticastSocket(Constant.commPort); multicastSocket.joinGroup(remoteInetAddress); } }catch(IOException e) { e.printStackTrace(); } } //------------------------------------下面部分为GestureListener接口实现部分----------------------------------------------------------------------------- /** * 下面部分为GestureListener接口实现部分 */ @Override public boolean onDown(MotionEvent event) { System.out.println("onDown..."); return false; } /** * X轴的坐标位移大于FLING_MIN_DISTANCE，且移动速度大于FLING_MIN_VELOCITY个像素/秒，时会触发该事件 * downEvent当屏幕按下时触发的事件,由MotionEvent.ACTION_DOWN提供 * upEvent当滑动停止时触发的事件，由滑动的最后一个MotionEvent.ACTION_MOVE提供，即弹起 * xVelocity: X轴上的移动速度，像素/秒 * yVelocity: Y轴上的移动速度，像素/秒 */ @Override public boolean onFling(MotionEvent downEvent, MotionEvent upEvent, float xVelocity,float yVelocity) { if((upEvent.getX()-downEvent.getX())>0){//向左翻页 cmdBuffer[0]=Constant.RULE_KEY_EVENT; cmdBuffer[1]=Constant.KEY_ARROW_LEFT; sendCMD(); }else{//向右翻页 cmdBuffer[0]=Constant.RULE_KEY_EVENT; cmdBuffer[1]=Constant.KEY_ARROW_RIGHT; sendCMD(); } System.out.println("onFling..."); return false; } @Override public void onLongPress(MotionEvent event) { System.out.println("onLongPress..."); } /** *用户按下触摸屏，并拖动，由1个MotionEvent.ACTION_DOWN, 多个MotionEvent.ACTION_MOVE触发 *downEvent为MotionEvent.ACTION_DOWN触发的事件 *movEvent为MotionEvent.ACTION_MOVE触发的事件 *distance_X表示在X方向上滑动的距离,该值由上一个坐标值减去当前坐标值p1.x-p2.x,因此当正向滑动时为负值 *distance_Y表示在Y方向上滑动的距离,该值由上一个坐标值减去当前坐标值p1.y-p2.y,因此当正向滑动时为负值 *因我们需要当移动端正向滑动时电脑端鼠标也跟着正向移动，因此所要把这两个值反一下 */ @Override public boolean onScroll(MotionEvent downEvent, MotionEvent movEvent, float distance_X,float distance_Y) { //把本次移动的距离发送到服务端以此来控制服务端鼠标的移动 try { cmdBuffer[0]=Constant.RULE_MOUSE_EVENT; cmdBuffer[1]=Constant.MOUSE_GESTURE; byte xValue[]=ByteAndInt.int2ByteArray((int)(-distance_X));//把滑动距离反一下，这样当正向滑动时电脑端也为正向移动 byte yValue[]=ByteAndInt.int2ByteArray((int)(-distance_Y)); System.arraycopy(xValue, 0, cmdBuffer, 4, 4); System.arraycopy(yValue, 0, cmdBuffer, 8, 4); DatagramPacket sdp = new DatagramPacket(cmdBuffer, Constant.bufferSize,remoteInetAddress,Constant.commPort); multicastSocket.send(sdp); } catch (Exception e) { e.printStackTrace(); } return super.onTouchEvent(downEvent); } @Override public void onShowPress(MotionEvent event) { System.out.println("onShowPress..."); } @Override public boolean onSingleTapUp(MotionEvent event) { //轻触，发送鼠标点击指令 cmdBuffer[0]=Constant.RULE_MOUSE_EVENT; cmdBuffer[1]=Constant.MOUSE_LEFT; sendCMD(); System.out.println("onSingleTapUp..."); return false; } }