how to focus a JFrame?

Question

I am writing a small game, with one JFrame that holds the main game, and another JFrame that displays the score. the problem is, when I am done constructing them, the score JFrame always ends up focused! I have tried calling scoreDisplay.toFront(), scoreDisplay.requestFocus(), and even:

display.setState(JFrame.ICONIZED);
display.setState(JFrame.NORMAL);

Is there any way to make this work? Thanks in advance, john murano

Answer 1

Hi,

The way that I would do is:

 frame.toFront();
 frame.setState(Frame.NORMAL);

and If you also want have more control on it you should use requestFocuse.

BTW, here is an example : http://coding.derkeiler.com/Archive/Java/comp.lang.java.gui/2006-06/msg00152.html

Answer 2

Have you consider setting the score in the same frame as the game frame?

Other possible ( quick and dirty ) option is to create them in reverse order, or at least ( if score depends on game ) display them in reverse order.

score.setVisible( true );
game.setVisible( true );

My guess is that currently they are:

game.setVisible( true );
score.setVisible( true );

Answer 3

Toggle alwaysOnTop

See here:

http://forums.sun.com/thread.jspa?threadID=5124278

Read about toFront in the API http://java.sun.com/j2se/1.5.0/docs/api/java/awt/Window.html#toFront

Some platforms may not permit this VM to place its Windows above windows of native applications, or Windows of other VMs.

On Windows OS for example toFront causes the icon on the Task Bar to flicker, but the window stays in the back.

The only think that will force the window to front is setAlwaysOnTop.

frame.setAlwaysOnTop(true); 
frame.setAlwaysOnTop(false);