How to give JFrame initial focus

Question

What's the method that allows you to use the JFrame without clicking on it first? I have a game, but in order to move with WASD I first need to click on the frame when the application is run. Isn't there a method that makes it so you can use it straight away without clicking first?

I have this:

Game game = new Game();
game.frame.setResizable(false);
game.frame.setTitle(Game.title);
game.frame.add(game);
game.frame.pack();
game.frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
game.frame.setLocationRelativeTo(null);
game.frame.setVisible(true);

Where should I put game.frame.requestFocus();?

try Sysout(game.frame.requestFocusInWindow()) , also you should requestFocusInWindow for a container like a JPanel , not for a JFrame — nachokk, Jun 21 '13 at 15:41

score 2 · Answer 1 · answered Jun 21 '13 at 14:49

2

It is the requestFocus() method, which puts the focus on the component that called it (JFrame in this case).

answered Jun 21 '13 at 14:49

Lanaru

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Before you call game.frame.setVisible(true) call game.frame.requestFocus() – Lars Jun 21 '13 at 14:53
Didn't work :/ It's in the main method if that helps? Also, the way I've done it is added key listeners, and if W is pressed, print: true, false, false, false. If A is pressed, print: false, true, false, false etc. Therefore, if nothing is pressed, print: false, false, false, false. It's displaying full false when I press those buttons, until I click on the JFrame :/ – Michael Jarvis Jun 21 '13 at 14:59
Try putting requestFocus on the very last line. I believe that the component has to be visible before you can request focus. – Lanaru Jun 21 '13 at 15:01
That makes sense, but it didn't work :/ Maybe it's just my laptop? :P – Michael Jarvis Jun 21 '13 at 15:06

score 0 · Answer 2 · edited May 23 '17 at 12:05

0

Sounds like your asking how to set the focus.

Have a look at: How to focus a JFrame?

edited May 23 '17 at 12:05

Community

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answered Jun 21 '13 at 14:49

Menelaos

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score 0 · Answer 3 · answered Jun 21 '13 at 14:50

0

It is the requestFocus() method. This puts the focus on the component that called it. You may want to have a look at the following documentation: http://docs.oracle.com/javase/tutorial/uiswing/misc/focus.html

answered Jun 21 '13 at 14:50

blackpanther

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How to give JFrame initial focus

3 Answers3