I keep trying all this example code and none of it works, it always wants me to have a try/catch which means I have to ini. the variable anyway and I am tearing my hair out on the one, I have a jframe the exact size of my image, all I want is it to fill the entire jframe, also, could you make it so that if the image is transparent, that you can see though the entire jframe.
Thanks in advance
frame.add(new JLabel(new ImageIcon("path/to/image.png"));
There is a class called ImageIcon that can be used for images in Swing. Javadocs for ImageIcon
There are also many other ways to use ImageIcon.
From your saying that your example code want's you to use try / catch blocks, I'm guessing you are using the ImageIO class. It returns you with a BufferedImage which is not able to added to the frame. See the ImageIcon class here which you can use with the JLabel
frame.add(new JLabel(new ImageIcon("my_image.png"));
This should work if your image is outside of your jar. If it's included in the jar, use the classloader to get the resource for you.
URL url = getClass().getClassLoader().getResource("my_image.png");
ImageIcon icon = new ImageIcon(url);
frame.add(new JLabel(icon));
Hope this works.
Related
I have written some lines of code that supposed to show the image as a label in the JFrame. Here is the code.
ImageIcon image = new ImageIcon("funny.jpg");
JLabel label = new JLabel();
label.setIcon(image);
JFrame frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(500,500);
frame.setVisible(true);
frame.add(label);
As you were prompted in the comments of your question, I think you should take care of ensuring that the file exists in the specified location, and using getResource for example.
Other than that, you are not utilizing the image's observer pattern for the JLabel. Try setting the ImageObserver of the image to label, like so:
ImageIcon image = new ImageIcon("funny.jpg");
JLabel label = new JLabel();
label.setIcon(image);
image.setImageObserver(label); // <-- Added this line.
JFrame frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(500,500);
frame.setVisible(true);
frame.add(label);
Else, see the corresponding documentation on setImageObserver.
You can also check the corresponding tutorials' section.
That happens to be because, as far as I know, ImageIcon uses a MediaTracker to load the image asynchronously, so when you construct an instance of an ImageIcon it will return without first blocking until the image is fully loaded. Setting the ImageObserver of the ImageIcon will ensure that the ImageObserver you supplied will get notified about the state of loading the image when the state changes. The default implementation of Component (which is an ImageObserver) repaints itself so you will then be able to see the image fully loaded, when it is ready.
As an alternative, you can always use ImageIO#read which will block until the image is fully loaded into memory (but it will only return a single frame in an animated GIF image for example).
I did not test it though, but that's a problem I encouter very often so I think it should work. If it did or it didn't, let me know.
I'm still pretty new to Java, and in our programming class we are working in a group. My part of the assignment is to insert an image at the top part of the GUI.
this is the code I have so far..
ImageIcon image = new ImageIcon(getClass().getResource("EXTS.png"));
JPanel.add(image, BorderLayout.NORTH);
but right under the .add part of the Jpanel.add is that red squiggly line telling me that I should change my Image to a component and when I do that it tells me to switch it back to an Image?? this is what I'm getting confused on why would it tell me to change it back if it won't use it the way it is now?
So I guess my question is what should I do to fix this problem?
Also exactly how would I position it, I know it goes into the layout spot in the North but will that be dead center? or does it start from the 0,0 top left and then pixel in?
Thank you in advanced!
(P.s. this is the path to the image file if it should be different please tell me otherwise it's fine -- Project 3/Images/EXTS.png)
An Icon is not a component. You need to add the Icon to a component like a JLabel:
ImageIcon image = new ImageIcon(getClass().getResource("EXTS.png"));
//JPanel.add(image, BorderLayout.NORTH);
JPanel.add(new JLabel(image), BorderLayout.NORTH);
Assuming that the path to the image is correct, you should use a JLabel to show the image. See How to Use Labels for more details.
I'd also consider using ImageIO to read the image instead of ImageIcon as ImageIO will throw an IOException if the image can't be loaded for some reason. See Reading/Loading an Image for more deatils
ImageIcon image = new ImageIcon(
ImageIO.read(getClass().getResource("/EXTS.png")));
JPanel.add(new JLabel(image), BorderLayout.NORTH);
I'm a somewhat novice programmer and I'm have some trouble adding an image to my frame. While I know how to add images generally, this specific case it does not work.
public class Tutorial extends JFrame{
Tutorial(){
JFrame frame = new JFrame("ImageTutorial");
frame.setVisible(true);
frame.setSize(750,850);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setLayout(null);
ImageIcon image = new ImageIcon(getClass().getResource("Green Block.png"));
JLabel imagelabel = new JLabel(image);
imagelabel.setBounds(10, 10, 75, 75);
imagelabel.setOpaque(true);
frame.add(imagelabel);
Now, I've located the problem but I don't understand 'why' its a problem. When I remove
frame.setSize(750,850);
the image shows, but when its there it doesn't. How can the frame's size impact the image showing and how can I get around it?
Just curious, logically, what makes you think a frame should be visible before you add any components? Logically speaking, wouldn't it seem right to add your components first, then make the frame visible. It's like displaying a painting in an art gallery even before the painter has painted anything on it. It just makes no sense. I highly doubt setting the size has anything to do with it. IF you don't set the size of the frame, then the frame appears as small as possible. When you resize the frame, it causes a repaint, then showing the label you add. But generally, you want to always set frame visible after all you components are added, to avoid this problem.
Side note: You should stay away from null layouts. You need to learn to use Layout Managers and let them do the dynamic sizing and locating for you.
I am designing a form in java using JDeveloper.
I am new to JDeveloper.
In JDeveloper tool I didn't found any option to directly add image to form like .Net.
And I don't know how to add image to form manually.
is there any other way to solve it out.
So please help me to solve it.
As simple as this :
image = ImageIO.read(new File(path));
JLabel picLabel = new JLabel(new ImageIcon(image));
Yayy! Now your image is a swing component ! add it to a frame or panel or anything like you usually do! Probably need a repainting too , like
jpanel.add(picLabel);
jpanel.repaint();
Don't know about JDeveloper but in code you have following possibilities:
Create an ImageIcon of the image then set that to a jLabel and add jLabel to your frame.
Override paintComponents() of your frame to draw image using Graphics in it. {Not sure about this}
Override paintComponent() of some panel or any other component to draw image using Graphics in it and then add that component to frame..
You can use Labels as Sanjay says.
also using layered pane you can use as background image.
You can try doing it this way:
ImageIcon image = new ImageIcon(getClass().getResource("imageName.png"));
JLabel lblImage = new JLabel(image);
line 1 of the code will get the image ensure that the image is in the same folder you are saving your work
I want to display an image in my Java application. I found a code to download the image from the webserver and show it in the jframe.
I want to use a label to show the image or something else. It shouldn't be JFrame.
Here is my code:
Image image = null;
try {
URL url = new URL(
"http://www.personal.psu.edu/acr117/blogs/audrey/images/image-2.jpg");
image = ImageIO.read(url);
} catch (IOException e) {
}
// Use a label to display the image
JFrame frame = new JFrame();
JLabel lblimage = new JLabel(new ImageIcon(image));
frame.getContentPane().add(lblimage, BorderLayout.CENTER);
frame.setSize(300, 400);
frame.setVisible(true);
Can someone help me?
Using the code you provided, you already have the image in a JLabel called lblimage. You can now add that to a panel or any other container object, like so:
JPanel mainPanel = new JPanel(new BorderLayout());
mainPanel.add(lblimage);
// add more components here
frame.add(mainPanel);
frame.setVisible(true);
You can treat that label (lblimage) just like you would any normal component.
You could try doing this instead:
import javax.swing.ImageIcon;
...
JLabel image = new JLabel(new ImageIcon("imageName.png"));
...
frame.add(image);
I find it to be much easier to do :D
EDIT: Upon reading the question for the 4th time, I realized that this is exactly what you did in the question. Now, I'm having trouble figuring out what exactly you're asking for.
I would add two notes to the other useful answers:
1) Don't swallow exceptions; write to a log or at least print a stack trace.
catch (IOException e) { e.printStackTrace(); }
2) Instead of writing frame.setSize(300, 400), use pack(), which "Causes this Window to be sized to fit the preferred size and layouts of its subcomponents." In this way, the picture's original dimensions will be used. This is also the foundation of #camickr's suggestion to read about Layout Managers.
Your code already does what you need ( to display it in other than a JFrame - that's a JLabel - )
For what you say in your comments, to try to drag and drop and add more components I think what you need is to use a GUI BUilder to achieve what you want ( which is not only show the image but add other components )
I would recommend you yo use IntelliJ IDEA's GUI Builder
In order to have a complete overview on how Swing works and what can you with it, you can also take a look at: The swing tutorial
and i want to add more and more items
(buttons and labels ) to my GUI. can
you please help me
Your question has nothing to do with labels and images. You need to understand how to use Layout Managers to organize the components you add to a frame.
So start by reading the Swing tutorial on Layout Managers. There are plenty of examples you can download and play with. Also you can nest different layout managers on different panels.
Try this:
JLabel lblNewLabel_1 = new JLabel("");
lblNewLabel_1.setIcon(new ImageIcon(MainMenu.class.getResource("/Images/Bugs.png")));