blocks|key|1741360|text|要使用BoxLayout：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1741361|public+TextField(String+labelText){
++++this.label+=+new+JLabel(labelText);
++++this.textField+=+new+JTextField("");
++++this.setLayout(+new+BoxLayout(+this,+BoxLayout.X_AXIS+)+);
++++this.add(+label+);
++++this.add(+Box.createHorizontalGlue()+);
++++this.add(+textField+);
}|code-block|syntax|javascript|1741362|我喜欢将GridBagLayout用于具有复杂布局或应该“填充”部分面板的组件的面板。|offset|length|1741363|JPanel+panel+=+new+JPanel();
JLabel+label+=+new+JLabel(+"Enter+your+text:"+);
JTextField+textField+=+new+JTextField();
panel.setLayout(+new+GridBagLayout()+);
panel.add(+label,+
++++new+GridBagConstraints(+0,+0,+1,+1,+0.0,+0.0,+
++++GridBagConstraints.EAST,+GridBagConstraints.NONE,
++++new+Insets(+0,+0,+0,+0+),+0,+0+)+);
panel.add(+textField,+
++++new+GridBagConstraints(+1,+0,+1,+1,+1.0,+0.0,+
++++GridBagConstraints.WEST,+GridBagConstraints.HORIZONTAL,
++++new+Insets(+0,+0,+0,+0+),+0,+0+)+);|1741364|您可以找到关于如何使用GridBagLayout+here的很好的解释。|1741365|entityMap|0|LINK|mutability|MUTABLE|url|http://java.sun.com/javase/6/docs/api/java/awt/GridBagLayout.html|1|http://java.sun.com/docs/books/tutorial/uiswing/layout/gridbag.html^0|0|0|4|D|0|0|0|P|4|1|0^^$0|@$1|2|3|4|5|6|7|Y|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|Z|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|10|8|@]|9|@$I|11|J|12|1|13]]|A|$]]|$1|K|3|L|5|D|7|14|8|@]|9|@]|A|$E|F]]|$1|M|3|N|5|6|7|15|8|@]|9|@$I|16|J|17|1|18]]|A|$]]|$1|O|3|-4|5|6|7|19|8|@]|9|@]|A|$]]]|P|$Q|$5|R|S|T|A|$U|V]]|W|$5|R|S|T|A|$U|X]]]]

To use BoxLayout:

<pre><code>public TextField(String labelText){
 this.label = new JLabel(labelText);
 this.textField = new JTextField("");
 this.setLayout( new BoxLayout( this, BoxLayout.X_AXIS ) );
 this.add( label );
 this.add( Box.createHorizontalGlue() );
 this.add( textField );
}
</code></pre>

I like to use <a href="http://java.sun.com/javase/6/docs/api/java/awt/GridBagLayout.html" rel="nofollow noreferrer">GridBagLayout</a> for panels that have either complex layouts or components that should "fill" part of the panel.

<pre><code>JPanel panel = new JPanel();
JLabel label = new JLabel( "Enter your text:" );
JTextField textField = new JTextField();
panel.setLayout( new GridBagLayout() );
panel.add( label, 
 new GridBagConstraints( 0, 0, 1, 1, 0.0, 0.0, 
 GridBagConstraints.EAST, GridBagConstraints.NONE,
 new Insets( 0, 0, 0, 0 ), 0, 0 ) );
panel.add( textField, 
 new GridBagConstraints( 1, 0, 1, 1, 1.0, 0.0, 
 GridBagConstraints.WEST, GridBagConstraints.HORIZONTAL,
 new Insets( 0, 0, 0, 0 ), 0, 0 ) );
</code></pre>

You can find a good explanation of how you use GridBagLayout <a href="http://java.sun.com/docs/books/tutorial/uiswing/layout/gridbag.html" rel="nofollow noreferrer">here</a>.

blocks|key|348477|text|type|unstyled|depth|inlineStyleRanges|entityRanges|data|348478|我试过使用BoxLayout和水平胶水，但我不能让它工作。有人能解释一下应该怎么做吗？|blockquote|348479|348480|348481|这并不是什么诀窍。请阅读How+to+Use+Box+Layout上的Swing教程以获取工作示例。|offset|length|348482|如果它仍然不能工作，那么你需要发布你的SSCCE，因为我们无法猜测你可能做错了什么。|348483|entityMap|0|LINK|mutability|MUTABLE|url|http://java.sun.com/docs/books/tutorial/uiswing/layout/box.html#filler|1|http://sscce.org/^0|0|0|0|0|C|L|0|0|J|5|1|0^^$0|@$1|2|3|-4|4|5|6|V|7|@]|8|@]|9|$]]|$1|A|3|B|4|C|6|W|7|@]|8|@]|9|$]]|$1|D|3|-4|4|5|6|X|7|@]|8|@]|9|$]]|$1|E|3|-4|4|5|6|Y|7|@]|8|@]|9|$]]|$1|F|3|G|4|5|6|Z|7|@]|8|@$H|10|I|11|1|12]]|9|$]]|$1|J|3|K|4|5|6|13|7|@]|8|@$H|14|I|15|1|16]]|9|$]]|$1|L|3|-4|4|5|6|17|7|@]|8|@]|9|$]]]|M|$N|$4|O|P|Q|9|$R|S]]|T|$4|O|P|Q|9|$R|U]]]]

<blockquote>
 I tried using BoxLayout and
 Horizontal Glues, but I couldn't make
 it work. Can somebody explain how this
 should be done?
</blockquote>

There is no trick to this. Read the Swing tutorial on <a href="http://java.sun.com/docs/books/tutorial/uiswing/layout/box.html#filler" rel="nofollow noreferrer">How to Use Box Layout</a> for a working example.

If it still doesn't work then you need to post your <a href="http://sscce.org" rel="nofollow noreferrer">SSCCE</a> because we can't guess what you might be doing wrong.

blocks|key|441158|text|您还可以使用边框布局，并使用BorderLayout.WEST选项添加标签，使用BorderLayout.EAST选项添加TextField。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|441159|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

You could also use border layout and add the label using the BorderLayout.WEST option and the TextField using the BorderLayout.EAST option.

blocks|key|1741416|text|调试swing+UI的最佳方法之一是向组件添加可见边框，以便更好地了解正在发生的事情。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1741417|尝试在创建horizontalBox后添加此内容|offset|length|style|CODE|1741418|horizontalBox.setBorder(BorderFactory.createLineBorder(Color.black));|code-block|syntax|javascript|1741419|您很可能会发现，您的TextField缩小到了显示传递给构造函数的任何文本所需的绝对最小大小和JTextField的最小大小(基本上就是一个可见的字符空间)。|1741420|现在尝试将以下代码添加到构造函数中：|1741421|horizontalBox.setPreferredSize(new+Dimension(400,+40));|1741422|然后试着用支柱代替胶水：|1741423|horizontalBox.add(Box.createHorizontalStrut(30));|1741424|也就是说，我认为最大的问题是你正在使用一个JPanel，然后向它添加一个盒子组件，这使得调整组件的大小变得有问题。|1741425|试试这个，看看它对你是否有效：|1741426|public+TextField(String+labelText){
++++this.label+=+new+JLabel(labelText);
++++this.textField+=+new+JTextField("");
++++this.setLayout(new+BoxLayout(this,+BoxLayout.X_AXIS));
++++this.setBorder(BorderFactory.createLineBorder(Color.black));++//+debug
++++this.add(label);
++++this.add(Box.createHorizontalStrut(30));
++++this.add(textField);
}|1741427|附注：|1741428|您真的想重新考虑该JPanel扩展的名称。也许TextFieldDisplay或TextFieldPanel更合适。|1741429|entityMap^0|0|5|D|0|0|A|9|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|18|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|19|8|@$D|1A|E|1B|F|G]]|9|@]|A|$]]|$1|H|3|I|5|J|7|1C|8|@]|9|@]|A|$K|L]]|$1|M|3|N|5|6|7|1D|8|@$D|1E|E|1F|F|G]]|9|@]|A|$]]|$1|O|3|P|5|6|7|1G|8|@]|9|@]|A|$]]|$1|Q|3|R|5|J|7|1H|8|@]|9|@]|A|$K|L]]|$1|S|3|T|5|6|7|1I|8|@]|9|@]|A|$]]|$1|U|3|V|5|J|7|1J|8|@]|9|@]|A|$K|L]]|$1|W|3|X|5|6|7|1K|8|@]|9|@]|A|$]]|$1|Y|3|Z|5|6|7|1L|8|@]|9|@]|A|$]]|$1|10|3|11|5|J|7|1M|8|@]|9|@]|A|$K|L]]|$1|12|3|13|5|6|7|1N|8|@]|9|@]|A|$]]|$1|14|3|15|5|6|7|1O|8|@]|9|@]|A|$]]|$1|16|3|-4|5|6|7|1P|8|@]|9|@]|A|$]]]|17|$]]

One of the best ways to debug swing UIs is to add visible borders to your components to get a better idea of what is going on.

Try adding this after you create the <code>horizontalBox</code>:

<pre><code>horizontalBox.setBorder(BorderFactory.createLineBorder(Color.black));
</code></pre>

Most likely what you will find is that your <code>TextField</code> is shrunk to the absolute minimum size required to display whatever text you pass to the constructor and the minimum size of the JTextField (which is basically just one visible character space). 

Now try adding this to the constructor:

<pre><code>horizontalBox.setPreferredSize(new Dimension(400, 40));
</code></pre>

Then try replacing the glue with a strut:

<pre><code>horizontalBox.add(Box.createHorizontalStrut(30));
</code></pre>

That said, I think the biggest issue is that you are using a JPanel and then adding a box component to it, which makes resizing of the component problematic.

Try this and see if it works for you:

<pre><code>public TextField(String labelText){
 this.label = new JLabel(labelText);
 this.textField = new JTextField("");
 this.setLayout(new BoxLayout(this, BoxLayout.X_AXIS));
 this.setBorder(BorderFactory.createLineBorder(Color.black)); // debug
 this.add(label);
 this.add(Box.createHorizontalStrut(30));
 this.add(textField);
}
</code></pre>

[p.s.]

You really want to reconsider the name of that JPanel extension. Perhaps TextFieldDisplay or TextFieldPanel would be more appropriate.

blocks|key|440327|text|您发布的代码的问题与其说是BoxLayout，不如说是包含它的布局。默认情况下，JPanel使用FlowLayout。当您向FlowLayout添加组件时，它不会扩展以填满所有可用空间。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|440328|因此，不是向面板添加Box，而是让类extend+Box或将面板布局设置为BoxLayout并直接添加组件。|440329|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

The problem with the code that you posted isn't so much the BoxLayout, it's the layout that contains it. By default, JPanel uses FlowLayout. When you add a component to a FlowLayout it does not expand to fill all of the available space.

So, instead of adding a Box to the panel, either make the class extend Box or set the panel layout to BoxLayout and add the components directly.

blocks|key|1741458|text|将JPanel设置为使用BorderLayout。这与Box结合在一起，几乎可以提供你需要的任何布局。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1741459|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Set your JPanel to use BorderLayout. This, in combination with Box will give you almost any layout you need.

I have a question about laying out some swing components.

Say, I have a JPanel which contains a JLabel and a JTextField. I want JLabel to be drawn on the left-most side of JPanel, and JTextField to be drawn on the right-most side of JPanel. I tried using BoxLayout and Horizontal Glues, but I couldn't make it work. Can somebody explain how this should be done? And by the way, I also should be able to set the JTextField's size, which will grow from right to left.

EDIT: Here is my class, it's pretty simple.

<pre><code>public class TextField extends JPanel {
 private JLabel label;
 private JTextField textField;
 public TextField(String labelText){
 this.label = new JLabel(labelText);
 this.textField = new JTextField("");
 Box horizontalBox = Box.createHorizontalBox();
 horizontalBox.add(label);
 horizontalBox.add(Box.createHorizontalGlue());
 horizontalBox.add(textField);
 add(horizontalBox);
 }
}
</code></pre>

Swing: Alignment Problem

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我有一个关于布局一些swing组件的问题。比方说，我有一个包含JLabel和JTextField的JPanel。我希望将JLabel绘制在JPanel的最左侧，将JTextField绘制在JPanel的最右侧。我试着使用BoxLayout和水平胶水，但我不能让它工作。有人能解释一下应该怎么做吗？顺便说一句，我还应该能够...

问Swing:对齐问题
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