Images d'arrière-plan dans des Applets Java

Je ne pense pas qu'il existe une fonction pour faire cela. Mais vous pouvez l'étendre un Panneau (qui peut agir comme un simple conteneur de composants) et de redéfinir la méthode paint pour dessiner une image en arrière-plan.

Ce qui suit est un exemple de programme. Espérons que cette aide.

import java.applet.*;
import java.awt.*;
import java.net.*;
import java.io.IOException.*;
public class BackgroundApplet extends Applet {
Image backGround;
public void init() {
//set the size of the applet to the size of the background image.
//Resizing the applet may cause distortion of the image.
setSize(300, 300);
//Set the image name to the background you want. Assumes the image 
//is in the same directory as the class file is
backGround = getImage(getCodeBase(), "save.GIF");
BackGroundPanel bgp = new BackGroundPanel();
bgp.setLayout(new FlowLayout());
bgp.setBackGroundImage(backGround);
//Add the components you want in the Applet to the Panel
bgp.add(new Button("Button 1"));
bgp.add(new TextField("isn't this cool?"));
bgp.add(new Button("Useless Button 2"));
//set the layout of the applet to Border Layout
setLayout(new BorderLayout());
//now adding the panel, adds to the center
//(by default in Border Layout) of the applet
add(bgp);
}
}
class BackGroundPanel extends Panel {
Image backGround;
BackGroundPanel() {
super();
}
public void paint(Graphics g) {
//get the size of this panel (which is the size of the applet),
//and draw the image
g.drawImage(getBackGroundImage(), 0, 0,
(int)getBounds().getWidth(), (int)getBounds().getHeight(), this);
}
public void setBackGroundImage(Image backGround) {
this.backGround = backGround;    
}
private Image getBackGroundImage() {
return backGround;    
}
}

OriginalL'auteur confucius