Load an Image and Display

[Christian V Petersen]

Hey everybody

Im creating a MIDlet that should display an image.
But I get a l java.io.IOException.....
I've placed the picture test_j2me.png in the folder where all my files are.

My code looks like this :

public class Board extends Canvas implements CommandListener
{
private Game the_game;

public Graphics g;
public Image image;

private Command BACK = new Command("Back",Command.BACK,0);
//private Command EXIT = new Command("Exit",Command.EXIT,0);
private Command CLEAR = new Command("Clear",Command.OK,1);
private Display display;
private Displayable currentDisplayable;

private static final int WHITE = 0x00FFFFFF;
private static final int RED = 0x00FF0000;

public Board(Game the_game)
{
// There must be a call to super because this is the Canvas.class no arg constructor
super();

addCommand(BACK);
//addCommand(EXIT);
addCommand(CLEAR);
setCommandListener(this);
// This lines parses the instance of Game to the var the_game
// The instance of Game, instance_Game, is parsed to Board() - no arg constr - in Game.startApp()
this.the_game= the_game;
try
{
image = Image.createImage("C:/Documents and Settings/Christian V Petersen/JavaApplication5/src/BackG/test_j2me.png");
//
}
catch (IOException ioe)
{
System.out.println(ioe.getMessage());
ioe.printStackTrace();
}

}


public void commandAction(Command c, Displayable d)
{
if(c==BACK)
{
the_game.display.setCurrent(the_game.playMenu);
}

else if(c==CLEAR)
{

}
}


// this func is used to clear the Canvas
public void clear (Graphics g)
{
int clipX = g.getClipX();
int clipY = g.getClipY();
int clipH = g.getClipHeight();
int clipW = g.getClipWidth();

int color= g.getColor();
g.setColor(WHITE);
g.fillRect(clipX,clipY,clipW,clipH);

g.setColor(color);
}

public void paint(Graphics g)
{
//graphics
clear(g);

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


}

}

Any help is fine

Thanks
CVP

[lmtang]

image = Image.createImage("C:/Documents and Settings/Christian V Petersen/JavaApplication5/src/BackG/test_j2me.png");

Hi.

Ok. Still pretty new at J2ME, so I will not make my answer a "matter of fact" one. I'm not certain that it is necessary (or valid for that matter) to describe the entire path as you have above.

What I've done (and it works for me) is to place the image in my main source folder. And declare the path as such ("tesimg.png" being the filename):

Image image = Image.createImage("/testimg.png");

When I say the main source folder, in your case I believe it would be src (not within package BackG). Though if that fails, you can try recopying your image back in there I suppose.

Hope that helps.

[Christian V Petersen]

Great it works

I own a book on J2ME and it stated the same as you - except where to place the file

CPV

[jatal]

I believe that the image file needs to be on the classpath. This will allow you to add the image file as a Resource via the JAD/JAR package building tool (which will place the image file in the jar file). The image will probably get added at the root directory, so you can reference it as:

splashImage = Image.createImage("/msmSplash.PNG" );

To keep my project clean, I created an image directory and put my images in that folder. Then, via Eclipse project settings, I added the image folder as a source folder. This just puts the folder on the classpath. I suspect that if I had a subdirectory in my images folder, then the image would go in a different place in the jar... but that is just an untested supposition at this point.

[lmtang]

If you put the image in a package in your src code(eg.P1), what you would need to do (an alternative to putting it as part of your classpath) is this:

Image image = Image.createImage("/P1/testimg.png");

If you had a subdirectory within P1 (eg. sub):

Image image = Image.createImage("/P1/sub/testimg.png");