Android平台下的摄像头应用程序

package com.Android.CamMonitor; import android.app.Activity; import android.content.Intent; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.os.Bundle; import android.view.View; import android.widget.*; import java.io.BufferedReader; import java.io.BufferedWriter; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.io.PrintWriter; import java.net.InetSocketAddress; import java.net.SocketException; import java.net.UnknownHostException; import java.io.InputStreamReader; import java.io.OutputStreamWriter; import java.net.Socket; import android.util.Log; public class Activity02 extends Activity { private static String LOG_TAG = "socket"; private EditText LEditText; private TextView LTextView; private Button UpButton; private Button LeftButton; private Button DownButton; private Button RightButton; private Button Btn_Open; private Socket socket = null; // private BufferedWriter writer; // private BufferedReader reader; private OutputStream writer; private InputStream reader; private ImageView myImageView; byte[] buf = {'O', 'K', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; private final int HDRLEN = 50; private final int SZOFS = 29; private boolean m_stop = false; /** Called when the activity is first created. */ public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); //parent class setContentView(R.layout.main1); //child class UpButton = (Button)findViewById(R.id.UpButton); DownButton = (Button)findViewById(R.id.DownButton); LeftButton = (Button)findViewById(R.id.LeftButton); RightButton = (Button)findViewById(R.id.RightButton); Btn_Open = (Button)findViewById(R.id.btn_Open); // TextView LTextView=(TextView)findViewById(R.id.TextView01); // EditText LEditText=(EditText)findViewById(R.id.EditText01); try { socket = new Socket("192.168.7.205",7070); //连接服务器 } catch (IOException e3) { e3.printStackTrace(); } try { //reader = new BufferedReader(new InputStreamReader(socket.getInputStream())); reader = socket.getInputStream(); } catch (IOException e1) { e1.printStackTrace(); } try { //writer = new BufferedWriter(new OutputStreamWriter(socket.getOutputStream())); writer = socket.getOutputStream(); } catch (IOException e1) { e1.printStackTrace(); } UpButton.setOnClickListener(new Button.OnClickListener() { Button U = (Button)findViewById(R.id.UpButton); public void onClick(View v) { //char[] buf = {'O', 'K', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1}; try { buf[13] = 1; System.out.println("turn up"); writer.write(buf); writer.flush(); } catch (IOException e) { Log.e(LOG_TAG,e.toString()); } } }); DownButton.setOnClickListener(new Button.OnClickListener() { Button D = (Button)findViewById(R.id.DownButton); public void onClick(View v) { // char[] buf = {'O', 'K', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2}; try { buf[13] = 2; System.out.println("turn down"); writer.write(buf); writer.flush(); } catch (IOException e) { Log.e(LOG_TAG,e.toString()); } } }); LeftButton.setOnClickListener(new Button.OnClickListener() { Button L = (Button)findViewById(R.id.LeftButton); public void onClick(View v) { //String msg=LEditText.getText().toString()+"\r\n"; // char[] buf = {'O', 'K', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3}; try { buf[13] = 3; System.out.println("turn left"); writer.write(buf); writer.flush(); } catch (IOException e) { Log.e(LOG_TAG,e.toString()); } } }); RightButton.setOnClickListener(new Button.OnClickListener() { Button Ri = (Button)findViewById(R.id.RightButton); public void onClick(View v) { // char[] buf = {'O', 'K', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4}; try { buf[13] = 4; System.out.println("turn over"); writer.write(buf); writer.flush(); } catch (IOException e) { Log.e(LOG_TAG,e.toString()); } } }); Button fanhui = (Button)findViewById(R.id.fanhui); fanhui.setOnClickListener(new Button.OnClickListener() { public void onClick(View v) { Intent intent=new Intent(); intent.setClass(Activity02.this,Activity01.class); startActivity(intent); Activity02.this.finish(); try { reader.close(); } catch (IOException e) { e.printStackTrace(); } try { writer.close(); } catch (IOException e) { e.printStackTrace(); } try { socket.close(); } catch (IOException e) { e.printStackTrace(); } } }); Btn_Open.setOnClickListener(new Button.OnClickListener() { public void onClick(View v) { //while(true) { byte[] bb = {'O','K',0,0, 0,0,0,0,0,0,0,0,0}; try { writer.write(bb); } catch (IOException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } try { writer.flush(); } catch (IOException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } getImage(); } } }); } public void getImage() { myImageView = (ImageView)findViewById(R.id.myImageView); byte[] buffer = new byte[512*1024]; int siz = 0; int n = 0; //BufferedWriter m_stop = false; while(!m_stop) { try { n = reader.read(buffer, 0, HDRLEN); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } int ssz = SZOFS; //siz += unsignedByteToInt(buffer[ssz+3]) << 24; //siz += unsignedByteToInt(buffer[ssz+2]) << 16; //siz += unsignedByteToInt(buffer[ssz+1]) << 8; siz += unsignedByteToInt(buffer[ssz]) ; n = HDRLEN; if (buffer[0]!='S' || buffer[1]!='P' || buffer[2]!='C' || buffer[3]!='A') { System.out.println("*Header missing 'SPCA'"); continue; } else if (siz<=0 || siz>(512*1024)) { siz = 0; try { reader.read(buffer, n, buffer.length);