android 各app监控域名用安卓手机监控代码

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mob6454cc7c0428 2023-06-30 22:14:21

文章标签 android 各app监控域名 android 手机 null image 文章分类 Android 移动开发

一直想在自己的Android手机上实现一个手机监控摄像头功能。今天逛论坛，看到一个例子，于是做了出来，留着以后完善。

功能点：

1。Android和PC通过socket通信。

2。Android下Camera的使用。

看代码：

package com.wenix.androidcameramonitor;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.AlertDialog.Builder;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.content.Intent;
import android.os.Bundle;
import android.view.Window;
import android.view.WindowManager;
import android.widget.EditText;
import android.widget.TableLayout;

public class GetIP extends Activity {
    String ipname = null;

    @Override
    public void onCreate(Bundle savedInstanceState) {
	super.onCreate(savedInstanceState);
	// 设置全屏
	requestWindowFeature(Window.FEATURE_NO_TITLE);
	getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
		WindowManager.LayoutParams.FLAG_FULLSCREEN);
	setContentView(R.layout.activity_main);

	final Builder builder = new AlertDialog.Builder(this); // 定义一个AlertDialog.Builder对象
	builder.setTitle("登录服务器对话框"); // 设置对话框的标题

	// 装载/res/layout/login.xml界面布局
	TableLayout loginForm = (TableLayout) getLayoutInflater().inflate(
		R.layout.login, null);
	final EditText iptext = (EditText) loginForm
		.findViewById(R.id.ipedittext);
	builder.setView(loginForm); // 设置对话框显示的View对象
	// 为对话框设置一个“登录”按钮
	builder.setPositiveButton("登录"
	// 为按钮设置监听器
		, new OnClickListener() {
		    @Override
		    public void onClick(DialogInterface dialog, int which) {
			// 此处可执行登录处理
			ipname = iptext.getText().toString().trim();
			Bundle data = new Bundle();
			data.putString("ipname", ipname);
			Intent intent = new Intent(GetIP.this, MainActivity.class);
			intent.putExtras(data);
			startActivity(intent);
		    }
		});
	// 为对话框设置一个“取消”按钮
	builder.setNegativeButton("取消", new OnClickListener() {
	    @Override
	    public void onClick(DialogInterface dialog, int which) {
		// 取消登录，不做任何事情。
		System.exit(1);
	    }
	});
	// 创建、并显示对话框
	builder.create().show();
    }
}

获取ip后就跳转到MainActivity。

package com.wenix.androidcameramonitor;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.net.Socket;

import android.app.Activity;
import android.content.Intent;
import android.graphics.ImageFormat;
import android.graphics.Rect;
import android.graphics.YuvImage;
import android.hardware.Camera;
import android.hardware.Camera.Size;
import android.os.Bundle;
import android.util.Log;
import android.view.SurfaceHolder;
import android.view.SurfaceHolder.Callback;
import android.view.SurfaceView;
import android.view.Window;
import android.view.WindowManager;

public class MainActivity extends Activity {
	SurfaceView sView;
	SurfaceHolder surfaceHolder;
	int screenWidth, screenHeight;
	Camera camera; // 定义系统所用的照相机
	boolean isPreview = false; // 是否在浏览中
	private String ipname;

	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		// 设置全屏
		requestWindowFeature(Window.FEATURE_NO_TITLE);
		getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
		setContentView(R.layout.activity_main);

		// 获取IP地址
		Intent intent = getIntent();
		Bundle data = intent.getExtras();
		ipname = data.getString("ipname");

		screenWidth = 640;
		screenHeight = 480;
		sView = (SurfaceView) findViewById(R.id.sView); // 获取界面中SurfaceView组件
		surfaceHolder = sView.getHolder(); // 获得SurfaceView的SurfaceHolder

		// 为surfaceHolder添加一个回调监听器
		surfaceHolder.addCallback(new Callback() {
			@Override
			public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
			}

			@Override
			public void surfaceCreated(SurfaceHolder holder) {
				initCamera(); // 打开摄像头
			}

			@Override
			public void surfaceDestroyed(SurfaceHolder holder) {
				// 如果camera不为null ,释放摄像头
				if (camera != null) {
					if (isPreview)
						camera.stopPreview();
					camera.release();
					camera = null;
				}
				System.exit(0);
			}
		});
		// 设置该SurfaceView自己不维护缓冲
		surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);

	}

	private void initCamera() {
		if (!isPreview) {
			camera = Camera.open();
		}
		if (camera != null && !isPreview) {
			try {
				Camera.Parameters parameters = camera.getParameters();
				parameters.setPreviewSize(screenWidth, screenHeight); // 设置预览照片的大小
				parameters.setPreviewFpsRange(20, 30); // 每秒显示20~30帧
				parameters.setPictureFormat(ImageFormat.NV21); // 设置图片格式
				parameters.setPictureSize(screenWidth, screenHeight); // 设置照片的大小
				// camera.setParameters(parameters); // android2.3.3以后不需要此行代码
				camera.setPreviewDisplay(surfaceHolder); // 通过SurfaceView显示取景画面
				camera.setPreviewCallback(new StreamIt(ipname)); // 设置回调的类
				camera.startPreview(); // 开始预览
				camera.autoFocus(null); // 自动对焦
			} catch (Exception e) {
				e.printStackTrace();
			}
			isPreview = true;
		}
	}

}

class StreamIt implements Camera.PreviewCallback {
	private String ipname;

	public StreamIt(String ipname) {
		this.ipname = ipname;
	}

	@Override
	public void onPreviewFrame(byte[] data, Camera camera) {
		Size size = camera.getParameters().getPreviewSize();
		try {
			// 调用image.compressToJpeg（）将YUV格式图像数据data转为jpg格式
			YuvImage image = new YuvImage(data, ImageFormat.NV21, size.width, size.height, null);
			if (image != null) {
				ByteArrayOutputStream outstream = new ByteArrayOutputStream();
				image.compressToJpeg(new Rect(0, 0, size.width, size.height), 80, outstream);
				outstream.flush();
				// 启用线程将图像数据发送出去
				Thread th = new MyThread(outstream, ipname);
				th.start();
			}
		} catch (Exception ex) {
			Log.e("Sys", "Error:" + ex.getMessage());
		}
	}
}

class MyThread extends Thread {
	private byte byteBuffer[] = new byte[1024];
	private OutputStream outsocket;
	private ByteArrayOutputStream myoutputstream;
	private String ipname;

	public MyThread(ByteArrayOutputStream myoutputstream, String ipname) {
		this.myoutputstream = myoutputstream;
		this.ipname = ipname;
		try {
			myoutputstream.close();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

	public void run() {
		try {
			// 将图像数据通过Socket发送出去
			Socket tempSocket = new Socket(ipname, 6000);
			outsocket = tempSocket.getOutputStream();
			ByteArrayInputStream inputstream = new ByteArrayInputStream(myoutputstream.toByteArray());
			int amount;
			while ((amount = inputstream.read(byteBuffer)) != -1) {
				outsocket.write(byteBuffer, 0, amount);
			}
			myoutputstream.flush();
			myoutputstream.close();
			tempSocket.close();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

}

这样就打开了socket，然后把camera获取的数据发送到PC端。

PC端代码：

package com.wenix;

import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.RandomAccessFile;
import java.net.ServerSocket;
import java.net.Socket;

import javax.imageio.ImageIO;
import javax.swing.JButton;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JPanel;

public class ImageServer {        
    public static ServerSocket ss = null;
    
    public static void main(String args[]) throws IOException{    
            ss = new ServerSocket(6000);
        
        final ImageFrame frame = new ImageFrame(ss);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setVisible(true);
       
        while(true){
                frame.panel.getimage();
            frame.repaint();
        }        
    }
       
}

/** 
    A frame with an image panel
*/
@SuppressWarnings("serial")
class ImageFrame extends JFrame{
        public ImagePanel panel;
        public JButton jb;
   
    public ImageFrame(ServerSocket ss){
               // get screen dimensions              
               Toolkit kit = Toolkit.getDefaultToolkit();
        Dimension screenSize = kit.getScreenSize();
        int screenHeight = screenSize.height;
        int screenWidth = screenSize.width;

        // center frame in screen
        setTitle("ImageTest");
        setLocation((screenWidth - DEFAULT_WIDTH) / 2, (screenHeight - DEFAULT_HEIGHT) / 2);
        setSize(DEFAULT_WIDTH, DEFAULT_HEIGHT);

        // add panel to frame
        this.getContentPane().setLayout(null);
        panel = new ImagePanel(ss);
        panel.setSize(640,480);
        panel.setLocation(0, 0);
        add(panel);
        jb = new JButton("拍照");
        jb.setBounds(0,480,640,50);
        add(jb);
        saveimage saveaction = new saveimage(ss);
        jb.addActionListener(saveaction);
    }

    public static final int DEFAULT_WIDTH = 640;
    public static final int DEFAULT_HEIGHT = 560;  
}

/**
   A panel that displays a tiled image
*/
@SuppressWarnings("serial")
class ImagePanel extends JPanel {     
    private ServerSocket ss;
    private Image image;
    private InputStream ins;
         
    public ImagePanel(ServerSocket ss) {  
            this.ss = ss;
    }
    
    public void getimage() throws IOException{
            Socket s = this.ss.accept();
        System.out.println("连接成功!");
        this.ins = s.getInputStream();
                this.image = ImageIO.read(ins);
                this.ins.close();
    }
   
    public void paintComponent(Graphics g){  
        super.paintComponent(g);    
        if (image == null) return;
        g.drawImage(image, 0, 0, null);
    }

}

class saveimage implements ActionListener {
        RandomAccessFile inFile = null;
        byte byteBuffer[] = new byte[1024];
        InputStream ins;
        private ServerSocket ss;
        
        public saveimage(ServerSocket ss){
                this.ss = ss;
        }
        
        public void actionPerformed(ActionEvent event){
        try {
                        Socket s = ss.accept();
                        ins = s.getInputStream();
                        
                        // 文件选择器以当前的目录打开
                JFileChooser jfc = new JFileChooser(".");
                jfc.showSaveDialog(new javax.swing.JFrame());
                // 获取当前的选择文件引用
                File savedFile = jfc.getSelectedFile();
                
                // 已经选择了文件
                if (savedFile != null) {
                    // 读取文件的数据，可以每次以快的方式读取数据
                    try {
                                        inFile = new RandomAccessFile(savedFile, "rw");
                                } catch (FileNotFoundException e) {
                                        e.printStackTrace();
                                }
                }

            int amount;
            while ((amount = ins.read(byteBuffer)) != -1) {
                inFile.write(byteBuffer, 0, amount);
            }
            inFile.close();
            ins.close();
            s.close();
            javax.swing.JOptionPane.showMessageDialog(new javax.swing.JFrame(),
                    "已接保存成功", "提示!", javax.swing.JOptionPane.PLAIN_MESSAGE);
                } catch (IOException e) {

                        e.printStackTrace();
                }
        }
}

运行结果如下：

android 各app监控域名用安卓手机监控代码_手机