[英]Java Swing JFrame minimize/maximize resize bug
The problem is that when I try to maximize the JFrame the frame does get maximized, but the content size is preserved. 问题是,当我尝试最大化JFrame时,框架确实被最大化,但内容大小被保留。
http://i.imgur.com/7q5Yh9F.png http://i.imgur.com/7q5Yh9F.png
My main frame class: 我的主要框架类:
private CardLayout layout;
private SettingsFrame settingsFrame;
private Container contentPane;
Frame frame = this;
private ApplicationFrame() {
contentPane = getContentPane();
layout = new CardLayout();
contentPane.setLayout(layout);
initializeFrame();
settingsFrame = new SettingsFrame(model);
initializeMenuBar();
initializePanels();
showPage(FIRST_PAGE);
this.addWindowStateListener(listener);
}
public SettingsFrame getSettingsFrame() {
return settingsFrame;
}
private void initializeFrame() {
this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
this.setTitle(APPLICATION_TITLE);
this.settingsFrame = new SettingsFrame(model);
this.setSize(1400, 900);
this.setLocationRelativeTo(null);
}
private void initializePanels() {
add(new Panel(), FIRST_PAGE);
add(new Panel(), SECOND_PAGE);
add(new Panel(), THIRD_PAGE);
}
I tried to make a listener, catch the maximize event and there i tried: 我试图创建一个监听器,捕获最大化事件,并尝试:
revalidate();
repaint();
also 也
invalidate();
validate();
but with no succes. 但没有成功。
I found out that: 我发现:
frame.setExtendedState(JFrame.MAXIMIZED_BOTH);
is corectly maximizing the Frame, but i cannot use that is the listener because the maximize event already happened. 是核心最大化框架,但我不能使用它是监听器,因为最大化事件已经发生。
You're using a CardLayout
which unfortunately won't allow you to resize the JComponent
. 你正在使用
CardLayout
,遗憾的是它不允许你调整JComponent
大小。 Because the CardLayout
can hold/manage one or more components that share the same display space. 因为
CardLayout
可以保存/管理共享相同显示空间的一个或多个组件。
You should add a JPanel
and set that panel's layout to the CardLayout
if you wish to use it. 如果要使用它,则应添加
JPanel
并将该面板的布局设置为CardLayout
。
I strongly recommend reading the following documentation: A Visual Guide to Layout Managers 我强烈建议您阅读以下文档: 布局管理器的可视指南
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