[ammanage]

Hi everyone
I am very new with J2ME.
Actually, I have tried to turn camera on with MMAPI. I use NetBeans for IDE and my program work well with mobile emulator.
Unfortunately, when I install this program to my cell phone, Nokia 6070, there ‘s nothing happened. Only message “Running in background and camera isn’t turned on.
However , I have check if my phone supporting MMAPI.
It supports MMAPI.
http://www.forum.nokia.com/devices/6070

This is code of my program. There ‘re three files.

1. Capture.java : MIDlet


import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
import javax.microedition.media.*;
import javax.microedition.media.control.*;
//import com.sun.midp.io.Base64;
import java.lang.Object.*;

/**
* @author Theeranit
*/
public class Capture extends MIDlet {

private Player player;
private Camera camera;
private VideoControl videoControl;
private int cameraWidth;

public Capture() {
}

public void startApp() {
Thread th = new Thread() {

public void run() {
showCamera();
}
};
th.start();
}

public void pauseApp() {
byte[] amm = "abc".getBytes();
//String stringEncode = Base64.encode(amm, 0, amm.length);


}

public void destroyApp(boolean unconditional) {
}

public void showCamera() {
try {
player = Manager.createPlayer("capture://video");
player.realize();
player.prefetch();
videoControl = (VideoControl) player.getControl("VideoControl");


camera = new Camera(this, videoControl);
cameraWidth = camera.getWidth();

Display.getDisplay(this).setCurrent(camera);

player.start();



} catch (Exception e) {
}




}

public void capturePhoto() {
try {
byte[] raw = videoControl.getSnapshot(null);
//player.stop();
Image image = Image.createImage(raw, 0, raw.length);
Photo photo = new Photo(image);
Display.getDisplay(this).setCurrent(photo);


} catch (MediaException e) {
System.out.println(e.getMessage());
}

}
/*
private Image createThumbnail(Image image) {
int sourceWidth = image.getWidth();
int sourceHeight = image.getHeight();

int thumbWidth = camera.getWidth();
int thumbHeight = -1;

if (thumbHeight == -1) {
thumbHeight = thumbWidth * sourceHeight / sourceWidth;
}

Image thumb = Image.createImage(thumbWidth, thumbHeight);
Graphics g = thumb.getGraphics();

for (int y = 0; y < thumbHeight; y++) {
for (int x = 0; x < thumbWidth; x++) {
g.setClip(x, y, 1, 1);
int dx = x * sourceWidth / thumbWidth;
int dy = y * sourceHeight / thumbHeight;
g.drawImage(image, x - dx, y - dy, Graphics.LEFT | Graphics.TOP);
}
}

Image immutableThumb = Image.createImage(thumb);

return immutableThumb;
}

*/
}


2. Camera.java : Canvas


import javax.microedition.lcdui.*;
import javax.microedition.media.*;
import javax.microedition.media.control.*;
/**
* @author Theeranit
*/
public class Camera extends Canvas implements CommandListener {
/**
* constructor
*/
private Command exitCommand, captureCommand;
private Capture capture;

public Camera(Capture midlet, VideoControl videoControl) {
exitCommand = new Command("Exit",Command.EXIT,0);
captureCommand = new Command("Capture", Command.SCREEN,1);

this.addCommand(exitCommand);
this.addCommand(captureCommand);

this.setCommandListener(this);


capture = midlet;

videoControl.initDisplayMode(VideoControl.USE_DIRECT_VIDEO, this);

try {
//videoControl.setDisplayLocation(2, 2);
videoControl.setDisplaySize(getWidth(), getHeight());

} catch (MediaException me) {
try {
videoControl.setDisplayFullScreen(true);
} catch (MediaException me2) {
}
}

videoControl.setVisible(true);
}

/**
* paint
*/
public void paint(Graphics g) {
g.setColor(0, 0, 0);
g.drawRect(0, 0, getWidth(), getHeight());
}


/**
* Called when action should be handled
*/
public void commandAction(Command c, Displayable s) {
if(c == exitCommand){
capture.notifyDestroyed();
}
else if(c == captureCommand){
Thread th = new Thread () {
public void run() {
capture.capturePhoto();
}
};
th.start();
}


}


/**
* Called when a key is pressed.
*/
protected void keyPressed(int keyCode) {
}

/**
* Called when a key is released.
*/
protected void keyReleased(int keyCode) {
}

/**
* Called when a key is repeated (held down).
*/
protected void keyRepeated(int keyCode) {
}

/**
* Called when the pointer is dragged.
*/
protected void pointerDragged(int x, int y) {
}

/**
* Called when the pointer is pressed.
*/
protected void pointerPressed(int x, int y) {
}

/**
* Called when the pointer is released.
*/
protected void pointerReleased(int x, int y) {
}




}



3. Photo.java : Canvas


import javax.microedition.lcdui.*;
import javax.microedition.media.*;
import javax.microedition.media.control.*;

/**
* @author Theeranit
*/
public class Photo extends Canvas implements CommandListener {

/**
* constructor
*/
Image image;

public Photo(Image img) {
image = img;
}

/**
* paint
*/
public void paint(Graphics g) {
g.setColor(255, 255, 255);
g.fillRect(0, 0, getWidth(), getHeight());

g.drawImage(createThumbnail(image), 0, 0, Graphics.TOP | Graphics.LEFT);

}

private Image createThumbnail(Image image) {
int sourceWidth = image.getWidth();
int sourceHeight = image.getHeight();

int thumbWidth = getWidth();
//int thumbWidth = 128;
int thumbHeight = -1;

if (thumbHeight == -1) {
thumbHeight = thumbWidth * sourceHeight / sourceWidth;
}

Image thumb = Image.createImage(thumbWidth, thumbHeight);
Graphics g = thumb.getGraphics();

for (int y = 0; y < thumbHeight; y++) {
for (int x = 0; x < thumbWidth; x++) {
g.setClip(x, y, 1, 1);
int dx = x * sourceWidth / thumbWidth;
int dy = y * sourceHeight / thumbHeight;
g.drawImage(image, x - dx, y - dy,
Graphics.LEFT | Graphics.TOP);
}
}

Image immutableThumb = Image.createImage(thumb);

return immutableThumb;
}

/**
* Called when a key is pressed.
*/
protected void keyPressed(int keyCode) {
}

/**
* Called when a key is released.
*/
protected void keyReleased(int keyCode) {
}

/**
* Called when a key is repeated (held down).
*/
protected void keyRepeated(int keyCode) {
}

/**
* Called when the pointer is dragged.
*/
protected void pointerDragged(int x, int y) {
}

/**
* Called when the pointer is pressed.
*/
protected void pointerPressed(int x, int y) {
}

/**
* Called when the pointer is released.
*/
protected void pointerReleased(int x, int y) {
}

/**
* Called when action should be handled
*/
public void commandAction(Command command, Displayable displayable) {
}
}



I’ m looking forward to receive good advice.

Thank you.

[jitu_goldie]

code works perfectly on sony ericsson k790i and sony ericsson 810i.
Please check the settings of multimedia in suite settings of application in app manager of device.