I have a small JApplet that is supposed to simply import an image and display it on screen. However, I am having some trouble with it.
private Image logo1;
public void init() {
logo1 = getImage( getCodeBase(), "Penguins.jpg" );
}
#Override
public void paint( Graphics g ) {
g.drawImage( logo1, 0, 0, this );
}
That is essentially my entire program. Is there any problem with it? I am assuming one of the problems might be that the picture might have to be in a specific part of your computer or something like that...The address for this image is C:\Users\Public\Pictures\Sample Pictures
The reason that getCodeBase() is in the method call of getImage() is to get the codebase location.
The codebase is the folder that holds all of your source packages. It's most likely the folder above your src folder for your project. Here's the basic structure of a normal project (at least my projects):
-MyProject - This is the codebase
-src - All of your code is probably in this folder. All packages show up as folders here
-bin - When your code compiles, it ends up here
-data - This is where all of the resources are held (my preference)
-images - Pretty obvious, the image would go here
-Penguin.jpg - Your image
All this leads up to this answer: With the above structure, your call to getImage() should read:
getImage(getCodeBase(), 'data/images/Penguin.jpg');
Try including the image that you want to display in the folder of your java program. Sometimes if the image is in another folder, it's not displayed in the applet.
I too faced a similar problem. Just copy the image into your project folder.
public void init() {
Picture = getImage(getDocumentBase(),"image.gif");
}
I use this code. Do following steps to add your image:
Clean and Build the project
Add the image into build folder of your project.
Run the project.
Related
I think I'm doing everything right in my code but my background won't show up in my processing project, here is my code.
package finalproject;
import processing.core.PApplet;
import processing.core.PImage;
public class FinalProject extends PApplet {
PImage background;
PImage player;
public void setup() {
size(1360, 1080);
player = loadImage("player.png");
background = loadImage("rust.png");
}
public void draw() {
background(background);
image(player, 500, 500);
}
}
Processing expects files to be inside a data directory next to the code.
You're presumably running this from an IDE like Eclipse instead of the Processing editor, so where you put that data directory depends on how your code is setup. And you haven't posted a MCVE, so it's hard to help you with that.
But basically, you need to debug your sketch to figure out exactly where Processing is looking for the files. Then you need to move the files there. This is probably something simple like putting them inside a data directory.
If you still can't get it working, please post a MCVE along with a screenshot or a description of your directory structure.
If you are using the processing IDE than the data folder should be located in your sketch folder next to all the .pde files. Make sure that the image you are using has the same resolution as the sketch window. If you are still having issues I would recommend that you try moving your setup and draw methods out of your class and into the main processing sketch.
I am using eclipse and wondering where to put an image so that I can import it into java. I am trying to import an image called viewport.png into JPanel from a folder called pictures that I have placed in my src folder within my workspace. This is what I have tried:
private Image viewport = new ImageIcon("src/images/viewport.png").getImage();
then of course later,
g.drawImage(viewport, 2, 2, null);
I really just want to be able to import a picture from the same folder, as this project is being moved to another computer where it will have a different path, but still be in the same folder. I was wondering if there is a shortcut to finding it that way (just be looking in the same folder as the classes are in).
Access the image via the classpath. You can do it by using getClass().getResource() which returns an URL you can pass the ImageIcon(URL) or ImageIO.read(URL) (which returns an Image. The latter is preferred, as an exception will be thrown is something is wrong with the path
BufferedImage viewPort;
...
try {
viewPort = ImageIO.read(getClass().getResource("/pictures/viewport.png"));
} catch (IOException ex) {
// print some message
}
Your pictures should be in the src
ProjectRoot
src
pictures
viewport.png
My textures have only been working in Eclipse but when I try to export it as a runnable jar ill start it up and there is no textures. I made a resources folder and connected it to the project by making it a class folder but it only works in eclipse. this is how I usually access the textures.
Image something;
public Image getsomethingImg(){
ImageIcon s=new ImageIcon("res/something.png");
something=s.getImage();
return something;
}
Then i draw it.
g2d.drawImage(getsomethingImg(), 0, 0, null);
How to includes all images in jar file using eclipse
Try this next.
ImageIcon s = new ImageIcon(getClass().getResource("res/something.png"));
I recently finished the basics of a game that I'm making and I was going to send it to some friends, but whenever they open the .jar it's just a grey window. When I heard that I assumed it was because of the way I got the images (I used a full path: C:\Users\etc). I did some Googling and found a way to get images that seemed more efficient.
private static Image[] mobImages = new Image[1];
public static void loadImages()
{
mobImages[1] = Handler.loadImage("res/EnemyLv1.png");
}
public static Image getMobImages(int index)
{
return mobImages[index];
}
That's what I would like to use. But I did that and changed the rest of my code to support that. And whenever I run a game I get a few errors. Which all point back to
this:
if(getBounds().intersects(tempEnemy.getBounds()))
and so probably the way I'm getting the images too. How could I fix this? And are there better ways to get Images? I've tried a few but they haven't worked.
EDIT: I finally solved all of the errors! :D The only problem is that none of the images appear. Here's my code again. Any more help? That would be fantastic! Thanks everybody for the support so far!
Hard to say whats going wrong in your code. However I recommend you put your image files into a package in the java project (so they will be part of the JAR file) and access them using Class.getResource()/Class.getResourceAsStream(). That avoids multiple pitfalls and keeps everything together.
A sample how to structure your images into the packages:
myproject
images
ImageLocator.class
MyImage1.jpg
MyImage2.jpg
The ImageLocator class then needs to use relative pathes (just the image name + extension) to access to resources.
public class ImageLocator {
public final static String IMAGE_NAME1 = "MyImage1.jpg";
public static Image getImage(final String name) {
URL url = ImageLocator.class.getResource(name);
Image image = Toolkit.getDefaultToolkit().createImage(url);
// ensure the image is loaded
return new ImageIcon(image).getImage();
}
}
This can be done more elegant, but this should get you started. Defining the image names as constants in the ImageLocator class avoids spreading the concrete path throughout the project (as long as the name is correct in ImageLocator, everything else will be checked by the compiler)
Your code still uses "C:\Users\Kids\Desktop\Java Game\Cosmic Defense\res\EnemyLv2.png" in Enemy.java. Are you sure this exists? If you moved the Cosmic Defense folder, it will not.
(You were talking about changing absolute paths to relative paths, so this may be your problem)
Part of the reason could be that your code is pointing to an index of "1" in an array of size 1, meaning that the only available index is in fact "0".
Try mobImages[0] = Handler.loadImage("res/EnemyLv1.png");
I wrote a method in order to get icon for my swing:
public Icon getIcon(String iconName) {
Icon icon = null;
if(iconName.equals("NEXT")){
icon = new ImageIcon( getClass().getResource("resources/img/next.png" ) );
}
return icon;
}
but
icon = new ImageIcon( getClass().getResource("resources/img/next.png" ) );
goes in null pointer
I created a source folder "resources" and a folder "img" inside it with "next.png" icon
Where's the problem?
Thanks
For this to work, the resources folder should be in the same folder as the folder corresponding to the package of this.getClass(). To start from the root of the classpath, use getClass().getResource("/resources/img/next.png"). (with a leading /)
so, I found the right method:
public static ImageIcon getImageIcon(String iconName) {
ImageIcon imageIcon = null;
if(iconName.equals("DOWNLOAD")){
imageIcon = new ImageIcon(ImagesLocation.class.getResource("/img/download.png"));
}
return imageIcon;
}
with a "resources" source folder at the same level of the project and with an img folder inside (package styled)
ImagesLocation is a generic class containing this method
For those in need of help that have come across this page in Google - I wrote an answer in another StackOverflow question giving the best way to handle images in JAVA apps so that you can easily access the images for all image method types in Java:
This IS the best way to handle all images and icons in a JAR App.
Once you've zipped up all of your images and icons into its own JAR file - Configure your build path by adding the images JAR file into your libraries tab so that its now included in your classpath.
Then simply use the following 3x lines of code at the start of your constuctor to access any image you need for anything including a SystemTray image which doesn't accept the simple ImageIcon's as its main icon (weird I know). The 3x lines are:
URL iconUrl = this.getClass().getResource("/image-iconb.png");
Toolkit tk = this.getToolkit();
someimgicon = tk.getImage(iconUrl);
(someimgicon is just a constructor declared Image variable)
Now you can set a window icon as simply as:
setIconImage(someimgicon);
and at the same time use the same variable when setting the System TrayIcon by declaring:
trayIcon = new TrayIcon(someimgicon, "SystemTray Demo", popupMenu);
The above allows you to declare Images or ImageIcons easily and centrally without running the risk of not keeping image resources in the right place. It keeps it nice and tidy, with the JAR containing all your images automatically compiled at run time and distribution of your program.
As a bonus, once the JAR is registered in your classpath - you can keep adding any other images into the same JAR at any time without any fuss too - Everything just works and the added images are instantly available to your app.
Much better in my view.