Loading a picture from URL
I'm trying to load a picture from an url. However, the class is not an applet. so I can't use: (apparently)
try{
base =new URL ("http://somewhereonthenet/" );
}
catch (MalformedURLException e)
{
System.out.println ("ouch that hurts");
}
images[m] = getImage(base,"orange.png");
So how the heck can I load a picture from an url into a picture object? My applet has a total of 10 classes so do I really can't make the helper class an applet right?
I don't know if I made everyone confused but this is what I'm trying to do in simplest terms:
I have a project with ... 'Main.java' (extends applet) then I have a class 'Loadpictures.java'. In 'Main.java' I instantiate 'Loadpictures.java' with this
publicvoid init()
{
Loadpictures images =new Loadpictures(url);
}
And finally within the "Loadpictures.java" class I need to load the picture up via "images[m] = getImage(base, "orange.png");" as I stated earlier. But I can't because 'Loadpictures.java' isn't an applet.
Wow, what do I do? Do I really need to create these pictures within Main.java?
Message was edited by:
Java_Rabbit
# 2
Image files are in the images folder which is in the current folder.
Images from links at the bottom of [url=http://java.sun.com/docs/books/tutorial/uiswing/components/examples/index.html]Examples Index[/url].
// <applet code="AppletImages" width="400" height="400"></applet>
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.*;
import java.net.*;
import javax.imageio.ImageIO;
import javax.swing.*;
public class AppletImages extends JApplet {
public void init() {
Image[] images = loadImages();
setLayout(new GridLayout(0,2));
for(int j = 0; j < images.length; j++)
add(new JLabel(new ImageIcon(images[j]), JLabel.CENTER));
}
private Image[] loadImages() {
String[] ids = { "-t", "-c", "-cg--", "h-", "-c-h-" };
Image[] images = new Image[ids.length];
int j = 0;
try {
// Use applet methods.
images[j] = getImage(getCodeBase(), "images/geek" + ids[j] + ".gif");
loadImage(images[j]);
j++;
images[j] = getImage(new URL("file:c:/jexp/images/geek" +
ids[j] + ".gif"));
loadImage(images[j]);
// Use Toolkit method.
j++;
// Class loader does the lookup with this Class method.
// Therefore, image file must be on class path.
URL url = getClass().getResource("images/geek" + ids[j] + ".gif");
images[j] = Toolkit.getDefaultToolkit().createImage(url);
loadImage(images[j]);
// Use ImageIcon method.
j++;
url = getClass().getResource("images/geek" + ids[j] + ".gif");
ImageIcon icon = new ImageIcon(url);
int status = icon.getImageLoadStatus();
if(status != MediaTracker.COMPLETE)
System.out.println("ImageIcon load error: " + status);
images[j] = icon.getImage();
// Use ImageIO method.
j++;
url = getClass().getResource("images/geek" + ids[j] + ".gif");
images[j] = ImageIO.read(url);
} catch(MalformedURLException mue) {
System.out.println("url error for " + ids[j] +
": " + mue.getMessage());
} catch(IOException ioe) {
System.out.println("read error for " + ids[j] +
": " + ioe.getMessage());
}
return images;
}
private void loadImage(Image image) {
MediaTracker mt = new MediaTracker(this);
mt.addImage(image, 0);
try {
mt.waitForID(0);
} catch(InterruptedException e) {
System.out.println("load error status: " + mt.statusAll(false));
}
if(mt.isErrorAny())
System.out.println("load error: " + mt.statusAll(false));
}
}
