实例介绍
【实例简介】
【实例截图】
【实例截图】
【核心代码】
package pip.Wifi; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.net.DatagramPacket; import java.net.DatagramSocket; import java.net.InetAddress; import java.net.ServerSocket; import java.net.Socket; import java.net.SocketException; import java.util.LinkedList; import java.util.List; import pip.Bluetooth.BluetoothCS; import pip.Bluetooth.BluetoothFile; import pip.Tool.UnitSize; import wyf.wpf.NewMain; import wyf.wpf.choosecontactlocal; import wyf.wpf.importing; import wyf.wpf.R; import wyf.wpf.Constant; import android.app.Activity; import android.app.AlertDialog; import android.app.Dialog; import android.content.DialogInterface; import android.content.Intent; import android.content.DialogInterface.OnClickListener; import android.os.Build; import android.os.Bundle; import android.os.Handler; import android.os.Message; import android.view.Gravity; import android.view.View; import android.view.ViewGroup; import android.widget.EditText; import android.widget.ProgressBar; import android.widget.RelativeLayout; import android.widget.TextView; import android.widget.Toast; public class WifiReceive extends Activity { private TextView ReceiveRemind = null;// 提醒客户用的text private RelativeLayout progresscontainer = null;// 包含进度条的layout private ProgressBar Cyclepb = null;// 等待对方连接圆形进度 private ProgressBar Horipb = null;// 接受信息进度 private CheckTimeoutThread m_CheckTimeoutThread = null;// 用于检测服务端等待超时的线程 static List<Byte> Bl = new LinkedList<Byte>(); static FileOutputStream Rev_Fs; private boadIpThread boadIP = null; private String username = null; private String MobileName = null; private String OpponentIP = null; private static final int CONFIRM = 11; public static final byte CONFIRM_FLAG = 0; public static final byte CANCEL_FLAG = 1; private DatagramSocket datasocket = null; private ServerSocket connectss = null; private Socket connectsocket = null; private ServerSocket getVcardss = null; private Socket getVcardsocket = null; private final Handler mHandler = new Handler() { Bundle b = null; @Override public void handleMessage(Message msg) { switch (msg.what) { case WifiHelper.WIFICONNECT: showDialog(CONFIRM);// 调用onCreateDialog break; case WifiHelper.UDP_SEND: ReceiveRemind.setGravity(Gravity.CENTER); ReceiveRemind.setText(getString(R.string.udp_send)); break; case Constant.SERVICE_ON: ReceiveRemind.setGravity(Gravity.CENTER); ReceiveRemind.setText(getString(R.string.server_start)); break; case Constant.MESSAGE_CONNECTED: // 使用interrupt停止检测超时线程的运行 m_CheckTimeoutThread.interrupt(); m_CheckTimeoutThread = null; ReceiveRemind.setGravity(Gravity.CENTER); ReceiveRemind.setText(getString(R.string.receiving)); progresscontainer.removeView(Cyclepb); break; case Constant.INIT_PROG: b = msg.getData(); int max = b.getInt("Total"); Horipb.setMax(max); RelativeLayout.LayoutParams barlp = new RelativeLayout.LayoutParams( ViewGroup.LayoutParams.FILL_PARENT, // width ViewGroup.LayoutParams.WRAP_CONTENT // height ); UnitSize.mysetMargins(WifiReceive.this, barlp, 0, 100, 0, 0); progresscontainer.addView(Horipb, barlp); Horipb.setVisibility(View.VISIBLE); break; case Constant.UPDATE_PROG: b = msg.getData(); int progress = b.getInt("Progress"); Horipb.setProgress(progress); break; case Constant.CONNECT_TIMEOUT: AlertDialog dlg4 = new AlertDialog.Builder(WifiReceive.this) .setTitle("超时操作").setMessage( "您已等待较长时间,是否返回重新操作?选择“是”返回,选择“否”继续等待。") .setPositiveButton("是", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { onBackPressed(); } }).setNeutralButton("否", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int witch) { dialog.dismiss(); // 监听后运行超时检测线程 m_CheckTimeoutThread = new CheckTimeoutThread( mHandler); m_CheckTimeoutThread.start(); } }).create(); dlg4.show(); break; case Constant.MESSAGE_RECEIVED: Horipb.setVisibility(View.INVISIBLE); Intent i = new Intent(WifiReceive.this, importing.class); i.putExtra("filepath", WifiHelper.WIFIRECEIVEPATH); startActivity(i); break; } } }; /************** 提示对话框 ***************/ protected Dialog onCreateDialog(int id) { switch (id) { case CONFIRM: String tempstring = "您是否确认接受对方用户的链接请求:" MobileName; return new AlertDialog.Builder(WifiReceive.this).setTitle("温馨提示") .setMessage(tempstring).setIcon( android.R.drawable.ic_dialog_info) .setPositiveButton("确认", new OnClickListener() { public void onClick(DialogInterface dialog, int which) { SendResponseThread sp = new SendResponseThread( CONFIRM_FLAG); sp.start(); // 启动接收线程 ServerThread server = new ServerThread(mHandler); server.start(); } }).setNegativeButton("取消", new OnClickListener() { public void onClick(DialogInterface dialog, int which) { SendResponseThread sp = new SendResponseThread( CANCEL_FLAG); sp.start(); } }).create(); default: return null; } } @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); // setContentView(R.layout.btserverfetch); setContentView(R.layout.wifireceive); progresscontainer = (RelativeLayout) findViewById(R.id.progresscontainer); Horipb = (ProgressBar) findViewById(R.id.importbar); Cyclepb = (ProgressBar) findViewById(R.id.cyclebar); ReceiveRemind = (TextView) findViewById(R.id.btservertext); String ss = getString(R.string.building_server); progresscontainer.removeView(Horipb); ReceiveRemind.setText(ss); RelativeLayout.LayoutParams barlp = new RelativeLayout.LayoutParams( ViewGroup.LayoutParams.WRAP_CONTENT, // width ViewGroup.LayoutParams.WRAP_CONTENT // height ); UnitSize.mysetMargins(WifiReceive.this, barlp, 135, 100, 0, 0); progresscontainer.removeView(Cyclepb); progresscontainer.addView(Cyclepb, barlp); Cyclepb.setVisibility(View.VISIBLE); Intent intent = getIntent(); username = intent.getStringExtra("username"); DatagramSocket ds; try { ds = new DatagramSocket(WifiHelper.UDP_BOADCASTPORT); ds.setBroadcast(true); // 创建并启动发送线程 boadIP = new boadIpThread(username, ds); boadIP.start(); mHandler.obtainMessage(WifiHelper.UDP_SEND).sendToTarget(); } catch (SocketException e1) { System.out.println("广播IP的Socket错了"); e1.printStackTrace(); } catch (Exception e) { System.out.println("广播IP的Socket错了"); e.printStackTrace(); } // 启动connect请求监听线程 GetConnectThread connect = new GetConnectThread(mHandler); connect.start(); } /** * 广播自己用户名的线程 * * @author XijieChen * */ class boadIpThread extends Thread { private String username; public boadIpThread(String name, DatagramSocket dsocket) throws Exception { username = name; datasocket = dsocket; } public void run() { try { while (true) { // 构造发送数据报 把自己的名字发送出去 byte[] data = username.getBytes(); DatagramPacket outgoing = new DatagramPacket(data, data.length, InetAddress .getByName("255.255.255.255"), WifiHelper.UDP_BOADCASTPORT); // 发送数据报 datasocket.send(outgoing); System.out.println("广播IP地址"); Thread.sleep(1000);// 每秒广播一次 } } catch (Exception ee) { System.out.println("广播IP地址的socket出错"); } finally { // 关闭dsocket System.out.println("关闭广播IP地址的socket"); if (datasocket != null) datasocket.close(); } } } /*** * 监听发送方connect请求的线程 * * @author XijieChen * */ class GetConnectThread extends Thread { private InputStream instrm = null; private final Handler tHandler; GetConnectThread(Handler handler) { tHandler = handler; } public void run() { try { connectss = new ServerSocket(WifiHelper.TCP_CONNECTPORT); System.out.println("ConnectListening..."); // accept阻塞直到被连接 connectsocket = connectss.accept(); System.out.println("ConnectThread Connected..."); // 阻塞运行 instrm = connectsocket.getInputStream(); MobileName = getMobilename(instrm); tHandler.obtainMessage(WifiHelper.WIFICONNECT).sendToTarget(); OpponentIP = connectsocket.getInetAddress().toString(); OpponentIP = OpponentIP.substring(1); System.out.println("发送方的IP地址==" OpponentIP); boadIP = null;// 终止boadIP线程,即停止广播 datasocket.close(); } catch (Exception e) { System.out.println("Connect请求线程出错"); e.printStackTrace(); } } } private String getMobilename(InputStream instrm) { byte[] buffer = new byte[WifiHelper.NAME_BUFFER_LENGTH]; try { instrm.read(buffer); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } String newstr = new String(buffer); System.out.println("对方用户名==" newstr); return newstr; } /** * 向发送方发送响应的线程 * * @author XijieChen * */ class SendResponseThread extends Thread { private OutputStream outStrm = null; byte flag = 0; public SendResponseThread(byte FLAG) { flag = FLAG; } public void run() { try { // 阻塞运行 outStrm = connectsocket.getOutputStream(); outStrm.write(flag & 0x000000ff); System.out.println("发送响应的flag==" flag); if (flag == CANCEL_FLAG) { onBackPressed(); } outStrm.close(); connectsocket.close(); connectss.close(); } catch (IOException e) { try { if (connectss != null) connectss.close(); if (connectsocket != null) connectsocket.close(); } catch (IOException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } try { if (outStrm != null) outStrm.close(); } catch (Exception e1) { // TODO Auto-generated catch block e1.printStackTrace(); } // TODO Auto-generated catch block e.printStackTrace(); } } } private class CheckTimeoutThread extends Thread { Handler mhandler = null; CheckTimeoutThread(Handler mhandler) { this.mhandler = mhandler; } public void run() { try { Thread.sleep(WifiHelper.timecheck); mhandler.obtainMessage(Constant.CONNECT_TIMEOUT).sendToTarget(); } catch (InterruptedException e) { // TODO Auto-generated catch block } } } /** * 按照协议接收文件的线程 * * @author XijieChen */ class ServerThread extends Thread { private InputStream instrm = null; private OutputStream outstream = null; private final Handler tHandler; byte ack[] = new byte[3];// 这个ack数组是为了强制双方数据传递同步 ServerThread(Handler handler) { tHandler = handler; ack[0] = 'a'; ack[1] = 'c'; ack[2] = 'k'; } public void run() { byte headtype = 0; try { getVcardss = new ServerSocket(WifiHelper.TCP_TRANSMISSIONPORT); System.out.println("接收文件的Listening..."); tHandler.obtainMessage(Constant.SERVICE_ON).sendToTarget(); // 监听后运行超时检测线程 m_CheckTimeoutThread = new CheckTimeoutThread(tHandler); m_CheckTimeoutThread.start(); // accept阻塞直到被连接 getVcardsocket = getVcardss.accept(); System.out.println("接收Vcard的Client Connected..."); tHandler.obtainMessage(Constant.MESSAGE_CONNECTED) .sendToTarget(); // 阻塞运行 instrm = getVcardsocket.getInputStream(); headtype = (byte) instrm.read(); outstream = getVcardsocket.getOutputStream(); outstream.write(ack); Rev_Fs = new FileOutputStream(new File( WifiHelper.WIFIRECEIVEPATH)); ReceiveContent(headtype, instrm, outstream, ack); tHandler.obtainMessage(Constant.MESSAGE_RECEIVED) .sendToTarget(); getVcardsocket.close(); getVcardss.close(); } catch (Exception e) { e.printStackTrace(); } finally { try { if (getVcardsocket != null) getVcardsocket.close(); if (getVcardss != null) getVcardss.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } } } /************ 接收文件的内容 *************/ private static void ReceiveContent(byte headtype, InputStream instrm, OutputStream outstream, byte ack[]) { if (headtype == BluetoothCS.END) return; byte lengthhighhigh, lengthhighlow, lengthlowhigh, lengthlowlow; try { System.out.println("从这里开始接收文件"); // lengthhighhigh = (byte) instrm.read(); // lengthhighlow = (byte) instrm.read(); // lengthlowhigh = (byte) instrm.read(); // lengthlowlow = (byte) instrm.read(); byte[] lengthbyte = new byte[4]; instrm.read(lengthbyte); lengthhighhigh = lengthbyte[3]; lengthhighlow = lengthbyte[2]; lengthlowhigh = lengthbyte[1]; lengthlowlow = lengthbyte[0]; int ContentLength = fourBytetoInt(lengthhighhigh, lengthhighlow, lengthlowhigh, lengthlowlow); System.out.println("length is " ContentLength); outstream.write(ack); byte[] buffer = new byte[WifiHelper.WIFI_BUFFER_LENGTH]; int left = ContentLength; int readonce = 0; while (left > 0) { readonce = instrm.read(buffer); outstream.write(ack); left = left - readonce; System.out.println("left1 length is " left); Rev_Fs.write(buffer, 0, readonce); for (int i = 0; i < readonce; i ) { Bl.add(new Byte(buffer[i])); } System.out.println("left2 length is " left); } instrm.close(); outstream.close(); } catch (IOException e) { // TODO Auto-generated catch block try { instrm.close(); } catch (IOException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } e.printStackTrace(); } } /************* 合并文件的高低字节以得到文件的长度 **************/ public static int fourBytetoInt(byte Highhigh, byte Highlow, byte Lowhigh, byte Lowlow) { int Int = 0; Int = Highhigh; Int = (int) (Int << 24); Int = Int (0x00FF0000 & ((int) Highlow << 16)); Int = Int (0x0000FF00 & ((int) Lowhigh << 8)); Int = Int (0x000000FF & ((int) Lowlow)); return Int; } /*************** 点击了“返回”按钮 *****************/ public void onmain(View view) { try { if (getVcardsocket != null) getVcardsocket.close(); if (getVcardss != null) getVcardss.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } // onBackPressed(); Intent i = new Intent(WifiReceive.this, NewMain.class); i.setFlags(i.FLAG_ACTIVITY_CLEAR_TOP); startActivity(i); } @Override protected void onStop() { boadIP = null; if (datasocket != null) { datasocket.close(); } try { if (getVcardsocket != null) getVcardsocket.close(); if (getVcardss != null) getVcardss.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } try { if (connectsocket != null) connectsocket.close(); if (connectss != null) connectss.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } super.onStop(); } @Override public void onBackPressed() { boadIP = null; if (datasocket != null) { datasocket.close(); } try { if (getVcardsocket != null) getVcardsocket.close(); if (getVcardss != null) getVcardss.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } try { if (connectsocket != null) connectsocket.close(); if (connectss != null) connectss.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } super.onBackPressed(); } }
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