Thread: JFrame - ImageIcon not displaying

Originally Posted by KevinWorkman

Does the layout you're using respect the bounds you've set? Normally you either use a layout *or* setBounds, not both.

Using setBounds and the panel is within bounds of the JFrame. Doesn't help, just a blank JFrame.

Originally Posted by KevinWorkman

Your code works fine for me. What does your directory structure look like?

Thanks for testing it! Here's my structure:

Project Folder:

>src >>default package
>jre
>splash_screen.png

Originally Posted by Norm

To see what is happening add a println() to the getContent() method that prints the bounds for the background object.

Here's the output:

javax.swing.JPanel[,0,0,800x600,invalid,layout=java.awt.FlowLayout,al ignmentX=0.0,alignmentY=0.0,border=,flags=9,maximu mSize=,minimumSize=,preferredSize=]

Originally Posted by KevinWorkman

Yep, that's pretty much what mine looks like. Try printing this to see if Java is looking in the right place:

System.out.println(new File("splash_screen.png").getAbsolutePath());

--- Update ---



Oh yeah, I just realized OP is adding the JPanel to the JFrame after the JFrame has already been displayed. OP, is there a reason you're doing this?

You have to revalidate and repaint your window for components that have been added after the JFrame is already visible.

File directory is fine.
I moved gameWindow.setVisible(true); to after the line gameWindow.add(splashScreen.getContent()); but it didn't make a difference.

First verify that your 'background' label is where you expect it to be:

background = new JLabel(backgroundImage);
background.setPreferredSize(new Dimension(75, 75));
background.setBorder(new LineBorder(Color.RED));

Run that and you should see a red square. If you do, then the problem is ImageIcon is not finding "splash_screen.png". I recommend you make a folder called 'images' inside your 'src' folder and put your images there. Then you can get them like this:

backgroundImage = new ImageIcon(getClass().getResource("/images/splash_screen.gif"));

This works both in the IDE and as a distributed jar, because the images are embedded inside the jar.

Originally Posted by BinaryDigit09

First verify that your 'background' label is where you expect it to be:

background = new JLabel(backgroundImage);
background.setPreferredSize(new Dimension(75, 75));
background.setBorder(new LineBorder(Color.RED));

Run that and you should see a red square. If you do, then the problem is ImageIcon is not finding "splash_screen.png". I recommend you make a folder called 'images' inside your 'src' folder and put your images there. Then you can get them like this:

backgroundImage = new ImageIcon(getClass().getResource("/images/splash_screen.gif"));

This works both in the IDE and as a distributed jar, because the images are embedded inside the jar.

Yup there is a red square, but the image is being located. I've tested for that already. Why should putting the image in my src folder make a difference?

Having said that there was one little thing with the file directory. THe project is in "My Documents" but the file location printed in java stated "Documents" but I'm pretty sure thats the same thing in windows.

EDIT: I double checked, "My Documents" did indeed show as "Documents" under properties in windows 7.

Originally Posted by mohagan9

Yup there is a red square, but the image is being located. I've tested for that already. Why should putting the image in my src folder make a difference?

I don't have "splash_screen.png" on my PC, so when I ran your code I got the same blank JFrame as you. But when I created my own "splash_screen.png" inside src/images/ and loaded it with getClass().getResource(), I got an image on the label. So based on your symptom, and mine being the same in the absence of the file, I concluded that it must not be finding the file.

I suggested having a /src/images folder because it works the same both in the IDE and as a distributed jar. It's better to have the file in a guaranteed relative location instead of some external place like My Documents. Especially if your path to the file is relative to user.dir like this is.

However, it works for me both ways. When I put the image next to src instead of inside it, and use new ImageIcon("splash_screen.gif") it works. Maybe you're on to something with the whole Documents vs My Documents thing?

Originally Posted by BinaryDigit09

I don't have "splash_screen.png" on my PC, so when I ran your code I got the same blank JFrame as you. But when I created my own "splash_screen.png" inside src/images/ and loaded it with getClass().getResource(), I got an image on the label. So based on your symptom, and mine being the same in the absence of the file, I concluded that it must not be finding the file.

I suggested having a /src/images folder because it works the same both in the IDE and as a distributed jar. It's better to have the file in a guaranteed relative location instead of some external place like My Documents. Especially if your path to the file is relative to user.dir like this is.

However, it works for me both ways. When I put the image next to src instead of inside it, and use new ImageIcon("splash_screen.gif") it works. Maybe you're on to something with the whole Documents vs My Documents thing?

Thanks for the reply, but still a blank screen

Line is as follows:

backgroundImage = new ImageIcon(getClass().getResource("/images/splash_screen.png"));

My structure is as follows for Project Folder:

>src
>>(default package) - //java files in here//
>>images - //splash_screen.png in here//

>jre


EDIT: Could there be any restrictions on file size and/or dimensions? The image is 1.4MB and 800x600.

Originally Posted by Norm

If you can't change the code to have it find the image,
try making many copies of the folder with the image putting a copy of the images folder in all the possible places that the code could be looking for it. Put it in dozens of places. When the code works, delete a folder and test. When the delete stops the code from working, that is the folder that the code is using.

Project Folder:

>src
>>(default package) - //java files here//
>>images - //image here//

>jre

>images - //image here//


Still a blank screen!

Originally Posted by KevinWorkman

What happened when you tested it out with a smaller image?

I just worked it out and I can't believe it! I'm so sorry guys haha.

Turns out the image was actually a bmp, it just had the file extension of png. WOOOOPS!

Thanks very much to everyone who helped out anyway