正在做一个j2me的项目，需要用相机拍照然后上传服务器

java_father 2010-09-20 10:11:23

有朋友做过这样的项目吗？

我基于SUN的WTK 在模拟器上实现了拍照功能

但是真机测试时候打开--拍照却灰屏。

打不开手机的摄像。

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suhu407563045 2010-09-28

要你的手机支持视频捕获
不是有摄像头就可以
supports.video.capture 是否支持视频捕获，如true

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huang_63188 2010-09-27

我学生。。。

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QQ153984069 2010-09-26

package prj13_1;



import java.io.IOException;

import javax.microedition.lcdui.Canvas;

import javax.microedition.lcdui.Command;

import javax.microedition.lcdui.CommandListener;

import javax.microedition.lcdui.Display;

import javax.microedition.lcdui.Displayable;

import javax.microedition.lcdui.Form;

import javax.microedition.lcdui.Image;

import javax.microedition.media.Manager;

import javax.microedition.media.MediaException;

import javax.microedition.media.Player;

import javax.microedition.media.control.VideoControl;

import javax.microedition.midlet.MIDlet;

import javax.microedition.midlet.MIDletStateChangeException;

import prj13_1.canvas.VideoCanvas;



public class VideoControlExample extends MIDlet implements CommandListener{

    private Display display;

    private Form form;

    private Command exit, back, capture, camera;

    private Player player;

    private VideoControl videoControl;

    private Video video;

    

	public VideoControlExample() {

        display = Display.getDisplay(this);

        form = new Form("Capture Video");

        exit = new Command("Exit", Command.EXIT, 0);

        camera = new Command("Camera", Command.SCREEN, 1);

        back = new Command("Back", Command.BACK, 2);

        capture = new Command("Capture", Command.SCREEN, 3);        

        form.addCommand(camera);

        form.setCommandListener(this);

	}



	protected void destroyApp(boolean arg0) throws MIDletStateChangeException {

        notifyDestroyed();



	}



	protected void pauseApp() {

		// TODO Auto-generated method stub



	}



	protected void startApp() throws MIDletStateChangeException {    

        display.setCurrent(form);



	}



    public void commandAction(Command c, Displayable s){

        String label = c.getLabel();

        if (label.equals("Exit")){

        	try {

				this.destroyApp(true);

			} catch (MIDletStateChangeException e) {

				// TODO Auto-generated catch block

				e.printStackTrace();

			}

        } else if (label.equals("Camera")) {

            showCamera();

        } else if (label.equals("Back"))

            display.setCurrent(form);

        else if (label.equals("Capture")) {

            video = new Video(this);

            video.start();

        }

    }

    

    public void showCamera(){

        try{

            player = Manager.createPlayer("capture://video");

            player.realize();            

            videoControl = (VideoControl)player.getControl("VideoControl");

            Canvas canvas = new VideoCanvas(this, videoControl);

            canvas.addCommand(back);

            canvas.addCommand(capture);

            canvas.setCommandListener(this);

            display.setCurrent(canvas);

            player.start();

        } catch (IOException ioe) {} catch (MediaException me) {}

    }



    class Video extends Thread {

        VideoControlExample midlet;

        public Video(VideoControlExample midlet) {

            this.midlet = midlet;

        }

        

        public void run() {

            captureVideo();            

        }

        

        public void captureVideo() {

            try {

                byte[] photo = videoControl.getSnapshot(null);

                Image image = Image.createImage(photo, 0, photo.length);

                form.append(image);

                display.setCurrent(form);                

                player.close();

                player = null;

                videoControl = null;

            } catch (MediaException me) { }

        }

    };

}