我创建了两个面板,一个用于JLabel和textfields,另一个用于文本区域。然而,这是我们的第一个GUI任务,而且我是所有不同布局的新手。我已经尝试过群组布局来尝试对齐文本字段和标签,但它并没有为我做好准备。我只是想知道哪种布局最适合实现所需的外观?
答案 0 :(得分:2)
基本答案是为不同的部分使用不同的布局,例如,我更喜欢使用GridBagLayout
作为详细信息窗格,使用GridLayout
来布局细节和相关的文本组件,但如果你聪明,你可以使用一个或多个GridBagLayout
。
但基本的想法是隔离功能并专注于个性化需求
import java.awt.EventQueue;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.GridLayout;
import java.awt.Insets;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
public class Test {
public static void main(String[] args) {
new Test();
}
public Test() {
EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) {
ex.printStackTrace();
}
JFrame frame = new JFrame("Testing");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(new ProjectPane());
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
});
}
public class ProjectPane extends JPanel {
public ProjectPane() {
JPanel detailsPane = new JPanel(new GridBagLayout());
GridBagConstraints gbc = new GridBagConstraints();
gbc.gridx = 0;
gbc.gridy = 0;
gbc.anchor = GridBagConstraints.WEST;
gbc.insets = new Insets(4, 4, 4, 4);
detailsPane.add(new JLabel("Project Name"), gbc);
gbc.gridy++;
detailsPane.add(new JLabel("Project Number"), gbc);
gbc.gridy++;
detailsPane.add(new JLabel("Project Location"), gbc);
gbc.gridy++;
detailsPane.add(new JLabel("Initial Funding"), gbc);
gbc.gridx = 1;
gbc.gridy = 0;
gbc.fill = GridBagConstraints.HORIZONTAL;
detailsPane.add(new JTextField(10), gbc);
gbc.gridy++;
detailsPane.add(new JTextField(10), gbc);
gbc.gridy++;
detailsPane.add(new JTextField(10), gbc);
gbc.gridy++;
detailsPane.add(new JTextField(10), gbc);
gbc.gridy++;
gbc.gridx = 0;
gbc.gridwidth = GridBagConstraints.REMAINDER;
gbc.fill = GridBagConstraints.NONE;
gbc.anchor = GridBagConstraints.CENTER;
detailsPane.add(new JButton("Create a project"), gbc);
setLayout(new GridLayout(1, 2));
add(detailsPane);
add(new JScrollPane(new JTextArea("No Project")));
}
}
}
现在上面的代码主要关注布局,但我很想让detailsPane
成为一个单独的组件,从而允许我将它的功能与它自己的类隔离,但那就是我
该组件显然包含在使用JTabbedPane
添加到容器中的BorderLayout
中,如果这很重要
查看Laying Out Components Within a Container,How to Use GridBagLayout和How to Use GridLayout了解更多详情