[英]Why buttons are not in the center in Java Swing?
Screenshot is here: http://imgur.com/a/33rhe 屏幕截图在这里: http : //imgur.com/a/33rhe
I'm using this code: 我正在使用此代码:
layout.setHorizontalGroup(
layout.createSequentialGroup()
.addComponent(greeting)
.addGroup(layout.createParallelGroup(GroupLayout.Alignment.CENTER)
.addGap(0,0,Short.MAX_VALUE)
.addComponent(english)
.addComponent(german)
.addComponent(french))
.addGroup(layout.createSequentialGroup()
.addGap(0,0,Short.MAX_VALUE)
.addComponent(quit))
);
So with this GroupLayout.Alignment.CENTER
I'm expecting that my buttons will be centralized, but they are not in the center on render. 因此,使用此GroupLayout.Alignment.CENTER
我希望按钮可以集中显示,但是它们不在渲染的中心。 What is the problem? 问题是什么? What I did wrong? 我做错了什么?
I'm a newbie and trying to understand what is going there 我是新手,想了解那里发生的事情
I never manually use a GroupLayout. 我从不手动使用GroupLayout。 It is typically used by IDE's. 它通常由IDE使用。 So I have no idea why the GroupLayout isn't doing whag you expect. 所以我不知道为什么GroupLayout没有按照您的期望做。
Instead I build my GUI's by hand using nested layouts when required. 相反,我在需要时使用嵌套布局手动构建GUI。
So instead I would do something like: 因此,我将改为:
JPanel buttonPanel = new JPanel( new GridLayout(...) );
buttonPanel.add(...);
frame.setLayout( new GridBagLayout() );
frame.add(buttonPanel, new GridBagConstraints());
Now the "buttonPanel" will be centered both vertically and horizontally. 现在,“ buttonPanel”将在垂直和水平方向居中。
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