[英]How to improve the margin and padding of JPanel in Java Swing?
When I initially run my java swing application, the padding and margining of the JLabels and JTextFields in JPanel look good, but whenever, I resize the application, the padding and margining for the JLabels and JTextFields increases so much that it does not look as good.当我最初运行我的 java swing 应用程序时,JPanel 中 JLabels 和 JTextFields 的填充和边距看起来不错,但是每当我调整应用程序的大小时,JLabels 和 JTextFields 的填充和边距增加太多以至于看起来不太好. I understand a GridLayout has a set amount of vertical and horizontal spacing, but what can I do to make the spacing look better as the size of the application increases?
我知道 GridLayout 有一定数量的垂直和水平间距,但是随着应用程序大小的增加,我该怎么做才能使间距看起来更好? I would also like the text in the text fields to resize as the textfield increases but have been unable to figure out.
我还希望文本字段中的文本随着文本字段的增加而调整大小,但一直无法弄清楚。 I have been thinking to use a GridBadLayout but have not had much luck with that either.
我一直在考虑使用 GridBadLayout 但也没有太多运气。 There is just way too much spacing as the size increases, which does not look good, and I have been unable to find or learn a good solution.
随着尺寸的增加,间距太大,看起来不太好,我一直无法找到或学习一个好的解决方案。 I would appreciate any advice.
我将不胜感激任何建议。
Here is the code:这是代码:
package TestPackage;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import java.awt.GridLayout;
import javax.swing.JTextField;
public class TestGridLayout {
public static void main(String[] args) {
JPanel testPanel = new JPanel();
GridLayout layoutManager = new GridLayout(5,2);
testPanel.setLayout(layoutManager);
JLabel platformEnumerationNameLabel = new JLabel();
JLabel logicalEnumerationNameFieldLabel = new JLabel();
JLabel valueTypeUnitNameFieldLabel = new JLabel();
JLabel measurementNameFieldLabel = new JLabel();
JLabel measurementAxisNameFieldLabel = new JLabel();
JTextField platformEnumerationNameField = new JTextField();
JTextField logicalEnumerationNameField = new JTextField();
JTextField valueTypeUnitNameField = new JTextField();
JTextField measurementNameField = new JTextField();
JTextField measurementAxisNameField = new JTextField();
platformEnumerationNameLabel.setText("Label 1");
testPanel.add(platformEnumerationNameLabel);
platformEnumerationNameField.setText("input some data");
testPanel.add(platformEnumerationNameField);
logicalEnumerationNameFieldLabel.setText("Label 2");
testPanel.add(logicalEnumerationNameFieldLabel);
logicalEnumerationNameField.setText("input some data");
testPanel.add(logicalEnumerationNameField);
valueTypeUnitNameFieldLabel.setText("Label 3");
testPanel.add(valueTypeUnitNameFieldLabel);
valueTypeUnitNameField.setText("input some data");
testPanel.add(valueTypeUnitNameField);
measurementNameFieldLabel.setText("Label 4");
testPanel.add(measurementNameFieldLabel);
measurementNameField.setText("input some data");
testPanel.add(measurementNameField);
measurementAxisNameFieldLabel.setText("Label 5");
testPanel.add(measurementAxisNameFieldLabel);
measurementAxisNameField.setText("input some data");
testPanel.add(measurementAxisNameField);
JDialog dialog = new JDialog();
dialog.add(testPanel);
dialog.setSize(700,200);
dialog.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
dialog.setVisible(true);
}
}
Use a different layout manager that doesn't resize all the components (unless you want them to)使用不同的布局管理器,它不会调整所有组件的大小(除非您希望它们这样做)
See How to Use GridBagLayout for more details有关更多详细信息,请参阅如何使用 GridBagLayout
import java.awt.EventQueue;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;
public class Test {
public static void main(String[] args) {
new Test();
}
public Test() {
EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
JFrame frame = new JFrame();
frame.add(new TestPane());
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
});
}
public class TestPane extends JPanel {
public TestPane() {
setLayout(new GridBagLayout());
GridBagConstraints gbc = new GridBagConstraints();
gbc.insets = new Insets(8, 8, 8, 8);
gbc.gridx = 0;
gbc.gridy = 0;
JLabel platformEnumerationNameLabel = new JLabel();
JLabel logicalEnumerationNameFieldLabel = new JLabel();
JLabel valueTypeUnitNameFieldLabel = new JLabel();
JLabel measurementNameFieldLabel = new JLabel();
JLabel measurementAxisNameFieldLabel = new JLabel();
JTextField platformEnumerationNameField = new JTextField(20);
JTextField logicalEnumerationNameField = new JTextField(20);
JTextField valueTypeUnitNameField = new JTextField(20);
JTextField measurementNameField = new JTextField(20);
JTextField measurementAxisNameField = new JTextField(20);
platformEnumerationNameLabel.setText("Label 1");
add(platformEnumerationNameLabel, gbc);
gbc.gridx++;
platformEnumerationNameField.setText("input some data");
add(platformEnumerationNameField, gbc);
gbc.gridy++;
gbc.gridx = 0;
logicalEnumerationNameFieldLabel.setText("Label 2");
add(logicalEnumerationNameFieldLabel, gbc);
gbc.gridx++;
logicalEnumerationNameField.setText("input some data");
add(logicalEnumerationNameField, gbc);
gbc.gridy++;
gbc.gridx = 0;
valueTypeUnitNameFieldLabel.setText("Label 3");
add(valueTypeUnitNameFieldLabel, gbc);
gbc.gridx++;
valueTypeUnitNameField.setText("input some data");
add(valueTypeUnitNameField, gbc);
gbc.gridy++;
gbc.gridx = 0;
measurementNameFieldLabel.setText("Label 4");
add(measurementNameFieldLabel, gbc);
gbc.gridx++;
measurementNameField.setText("input some data");
add(measurementNameField, gbc);
gbc.gridy++;
gbc.gridx = 0;
measurementAxisNameFieldLabel.setText("Label 5");
add(measurementAxisNameFieldLabel, gbc);
gbc.gridx++;
measurementAxisNameField.setText("input some data");
add(measurementAxisNameField, gbc);
}
}
}
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