[kapot]

I tried to "continuosly" grab and display a jpg image from http address. But my code below does not work :(

Anyone know how to fix this ?

Thanks

package jpgmidlet;

import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
import java.util.Vector;
import java.io.IOException;
import java.io.DataInputStream;
import javax.microedition.io.HttpConnection;
import javax.microedition.io.ContentConnection;
import javax.microedition.io.Connector;

public class JpgMidlet extends MIDlet implements Runnable
{
private Display display;
private Thread thread;
private Frame frame;

public JpgMidlet() {
display = Display.getDisplay(this);

frame = new Frame();
}

protected void startApp() {
run();
}

protected void pauseApp() {
}

protected void destroyApp(boolean unconditional) {
}

private Image createImage(String name) throws IOException {

// Load from a ContentConnection
HttpConnection c = null;
DataInputStream is = null;

try {
c = (HttpConnection)Connector.open(name);
int status = c.getResponseCode();

if (status != 200) {
throw new IOException("HTTP Response Code = " + status);
}

int len = (int)c.getLength();
String type = c.getType();

if (len > 0) {
is = c.openDataInputStream();
byte[] data = new byte[len];
is.readFully(data);
return Image.createImage(data, 0, len);
} else {
throw new IOException("Content length is missing");
}

} finally {
if (is != null)
is.close();

if (c != null)
c.close();
}

}


public void run() {
Image theimage = null;

String name = "http://127.0.0.1:11001/image.jpg";
try {
theimage = Image.createImage(name);
} catch (IOException err) {
}

frame.setImages(theimage);
display.setCurrent(frame);

}
}

class Frame extends Canvas {

private Image image;

Frame() {
image = Image.createImage(getWidth(), getHeight());
}

void setImages(Image theimage) {
Image image = theimage;
}

protected void paint(Graphics g) {
g.drawImage(image, 0, 0, Graphics.LEFT|Graphics.TOP);
}

}

[grahamhughes]

You're passing the URL to Image.createImage(), which won't accept a URL as a parameter. You don't call your own createImage() method anywhere.

Graham.

[shipf1ferrari]

Then, how do u solve this ? Cud u help ?

Regards,
Shilpa.

[grahamhughes]

The trick is, not to name your methods so that they have the same name as a different method in a different class that works a different way.

Change the name of the createImage() method in this code to fetchImage(), and make sure the method actually gets called from somewhere.

Graham.