[英]What kind of layout should I use for this Java GUI assignment?
基本的答案是對不同的部分使用不同的布局,例如,我更喜歡為詳細信息窗格使用GridBagLayout
,並為細節和相關聯的文本組件使用GridLayout
,但是如果使用一個或多個GridBagLayout
則可以使用你很聰明。
但是,基本思想是隔離功能並專注於各個需求
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")));
}
}
}
現在,上面的代碼着重於布局,但是我很想將detailsPane
做成一個單獨的組件,從而可以將其功能隔離到自己的類中,但這就是我
顯然,該組件包含在JTabbedPane
,該組件已使用BorderLayout
添加到了容器中,如果這很重要
有關更多詳細信息,請參見布局 容器中的組件 , 如何使用GridBagLayout和如何使用GridLayout 。
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