[英]How to change the value of a boolean when a JButton is pressed
My question states it all. 我的问题说明了一切。
Here is my code: 这是我的代码:
fullscreen.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
MainMenu.isFullscreen = true;
}
});
Where fullscreen is a JButton. 全屏显示的是JButton。
And then in my Screen class: 然后在我的Screen类中:
if(mm.isFullscreen) { if(mm.isFullscreen){
GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice().setFullScreenWindow(this);
repaint();
}
With mm being a deceleration of MainMenu. mm是MainMenu的减速度。 When mm.isFullscreen is false the Screen is its normal size.
如果mm.isFullscreen为false,则屏幕为正常大小。
I think I read somewhere that ActionListeners can't change the value of something outside the ActionListener...? 我想我读过某个地方,说ActionListeners无法更改ActionListener之外的东西的值...?
edit: 编辑:
I have fixed the isue thanks for the help but this is new code: 我已经修复了isue感谢您的帮助,但这是新代码:
In the screen class: 在屏幕类中:
public void setFullscreen() { 公共无效setFullscreen(){
GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice().setFullScreenWindow(this);
repaint();
}
In the mainMenu class: 在mainMenu类中:
fullscreen.addActionListener(new ActionListener() { fullscreen.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e) {
if(isFullscreen) {
isFullscreen = false;
}
if(!isFullscreen) {
isFullscreen = true;
screen.setFullScreen();
}
});
When setting isFullscreen = false;
当设置
isFullscreen = false;
you are not changing the state of full screen window! 您没有更改全屏窗口的状态!
You may use GraphicsDevice#setFullScreenWindow(null);
您可以使用
GraphicsDevice#setFullScreenWindow(null);
to set it back to windowed mode. 将其设置回窗口模式。
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