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PO
 

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  1. PO
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    <p>I ultimately decided to place the background image in the card panel itself, then put the card panel in a box layout manager so that it's always centered. I renamed cardPanel to gameBoard. Definitely could be cleaner, but I can only work with my requirements.</p> <pre><code>setSize(new Dimension(1000, 600)); gameBoard = new JPanel(); gameBoard.setLayout(null); gameBoard.setOpaque(false); Dimension expectedDimension = new Dimension(920, 500); gameBoard.setPreferredSize(expectedDimension); gameBoard.setMaximumSize(expectedDimension); gameBoard.setMinimumSize(expectedDimension); //add cards to gameBoard here JLabel background = new JLabel( new ImageIcon( getClass().getResource("images/graphic.png") ) ); background.setLocation(79,0); //manually center graphic background.setBounds(new Rectangle(0, 0, 920, 500)); gameBoard.add(background); Box centerBox = new Box(BoxLayout.Y_AXIS); centerBox.setOpaque(true); centerBox.setBackground(Color.WHATEVER); centerBox.add(Box.createVerticalGlue()); centerBox.add(gameBoard); centerBox.add(Box.createVerticalGlue()); add(centerBox); setVisible(true); </code></pre>
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    1. POHow to add two JPanels to a JFrame in the center?
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    1. USJoey
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    1. POHow to add two JPanels to a JFrame in the center?
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    1. CO-1, hard coding values does not support your requirement for dynamic resizing. `none of them worked for me.` - I posted a working example. Is the image not centered in the frame? Is the red panel not centered on the image? How did it NOT work for you? The code I gave you works for a tile panel that uses a null layout. How does that not satisfy your requirement? Take the time to understand the solution. If the example I posted does not reflect the structure of your frame, then where is the code that reflects your structure. That is what a `SSCCE` is for.
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    2. COIt definitely is dynamically resizing. I told you my exact requirements: fixed middle panel that always stays centered while the frame dynamically resizes. I cannot change my requirements, so -1 me for that is absurd. I solved the problem without using your suggestions, unfortunately, as I spent a couple hours trying each one, but they didn't work in the end.
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    3. COThe code I gave you works as is. Everything is centered. All you need to do is add some components to the "tiles" panel and adjust the preferred size. `didn't work in the end` - this doesn't describe the problem. What doesn't work? You made a change and broke the code. How do you expect help when you don't describe the problem? Using a BoxLayout is not a bad solution. It is the second most common way to center components. Using the GridBagLayout is just easier because you don't need to worry about the glue. If BoxLayout works, then GridBagLayout should as well.
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