JFrame in full screen Java

user_1123020 0
Viewed 323936

I will be doing a project soon and I will have to use full screen mode in it.

It will draw some graphics in the window. It would be convienient if I use JFrame or something similar.

I don't know what the final resolution of the screen will be. Please tell me if the graphics will be automaticly rescaled?

JFrame jf = new JFrame();
jf.setSize(1650,1080);
//make it fullscreen;
//now is everything is going to be rescaled so it looks like the original?
swing fullscreen java
14 Answers

First of all, that is the resolution you would want to use, 1650,1080.

Now add:

frame.setExtendedState(JFrame.MAXIMIZED_BOTH);

If you have issues with the components on the JFrame, then after you have added all the components using the frame.add(component) method, add the following statement.

frame.pack();
user_93406990

You only need this:

JFrame frame = new JFrame();
frame.setExtendedState(JFrame.MAXIMIZED_BOTH);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);

When you use the MAXIMIZED_BOTH modifier, it will max all the way across the window (height and width).

There are some that suggested using this:

frame.setUndecorated(true);

I won't recommend it, because your window won't have a header, thus no close/restore/minimize button.

user_51277960 
JFrame frame = new JFrame();
frame.setPreferredSize(new Dimension(Toolkit.getDefaultToolkit().getScreenSize()));

This just makes the frame the size of the screen

user_110002830

You can use properties tool.
Set 2 properties for your JFrame: 

extendedState 6
resizeable    true
Admin1

you can simply do like this -

public void FullScreen() {
        if (Build.VERSION.SDK_INT > 11 && Build.VERSION.SDK_INT < 19) {
            final View v = this.activity.getWindow().getDecorView();
            v.setSystemUiVisibility(8);
        }
        else if (Build.VERSION.SDK_INT >= 19) {
            final View decorView = this.activity.getWindow().getDecorView();
            final int uiOptions = 4102;
            decorView.setSystemUiVisibility(uiOptions);
        }
    }
user_151359470
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