Question

作为Swing的新手，我不确定使用哪种布局来设计以下设计。请建议我。我尝试使用GridLayout，但它将框架分成相等的部分，这会混淆按钮区域。我读到了使用GridBagLayout，但在Swing中是全新的，我不确定它是否会起作用。由于我在这个项目上有很多工作而且时间很少，所以我不想浪费时间。所以寻找一个简单而有保障的解决方案。请建议我一个简单的解决方案。

设计：框架的上半部分有两个编辑器（每个编辑器占据框架的一半宽度）。接下来它将在中心有一个按钮。按钮后面将是两个可滚动的表格（每个表格占据框架宽度的一半）。

编辑：谢谢大家。所以我从GridBagLayout开始，我接近我想要的。唯一的问题是我希望第二行只有一个提交按钮，但由于某种原因我的提交按钮嵌入到第三行的可滚动表中。基本上第二行根本没有出现。以下是我写的代码。请建议我更正。

class SplitPane扩展了JFrame {

private static JPanel panel2;
private static JPanel panel5;
private static JScrollPane panel3;
private static JScrollPane panel4;
protected JSplitPane split;

public SplitPane(JChemPaintPanel p){

    JFrame f = new JFrame("");
    //f.setLayout(new GridLayout(3, 2, 10, 10 ));
     f.addWindowListener(new JChemPaintPanel.AppCloser());
       f.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);
    //f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    f.setPreferredSize(new Dimension(800, 800));
    JPanel pane = new JPanel(new GridBagLayout());
    GridBagConstraints c = new GridBagConstraints();


    c.gridx=0;
    c.gridy=0;
    c.fill=GridBagConstraints.BOTH;
    c.weightx=0.3;
    c.weighty=0.3;
    p.setPreferredSize( new Dimension( 200, 200 ) );
    p.setMaximumSize(new Dimension(300, 300));
    pane.add(p, c);

    c.gridx=1;
    c.gridy=0;
    c.fill=GridBagConstraints.BOTH;
    c.weightx=0.3;
    c.weighty=0.3;
    pane.add(createPanel2(), c);


    c.gridx=0;
    c.gridy=1;
    c.gridheight=2;
    c.gridwidth=0;
    c.fill=GridBagConstraints.NONE;
    //c.weightx=0.3;
    //c.weighty=0.3;
    pane.add(createPanel5(), c);


    c.gridx=0;
    c.gridy=2;
    c.gridheight=1;
    c.gridwidth=1;
    c.fill=GridBagConstraints.BOTH;
    c.weightx=0.3;
    c.weighty=0.3;
    pane.add(createPanel3(), c);


    c.gridx=1;
    c.gridy=2;
    c.gridheight=1;
    c.gridwidth=1;
    c.fill=GridBagConstraints.BOTH;
    c.weightx=0.3;
    c.weighty=0.3;
    pane.add(createPanel4(), c);

    f.add(pane);
    f.pack();
    Point point = GraphicsEnvironment.getLocalGraphicsEnvironment().getCenterPoint();

    int w2 = 1000;
    int h2 = 1000;
    f.setLocation(point.x - w2, point.y - h2);
    f.setVisible(true);

}
//top right
public static JPanel createPanel2(){
    panel2 = new JPanel();
    panel2.setLayout( new BorderLayout() );
    panel2.add((new TextArea("Panel2")));
    panel2.setPreferredSize( new Dimension( 200, 200 ) );
    panel2.setMaximumSize(new Dimension(300, 300));
    return panel2;
}

public static JPanel createPanel5(){
    panel5 = new JPanel();
    JButton b1 = new JButton("Submit");
    panel5.add(b1);

    return panel5;
}


//bottom left
public static JScrollPane createPanel3(){
    Label label_prop = new Label("Properties:", Label.LEFT);
    String[] columnNames = {"Properties","",};
    Object[][] data = {
            {"", "",}, {"", ""}, {"", ""},{"", ""},
            {"", "",}, {"", ""}, {"", ""},{"", ""},
            {"", "",}, {"", ""}, {"", ""},{"", ""},
            {"", "",}, {"", ""}, {"", ""},{"", ""},
            {"", "",}, {"", ""}, {"", ""},{"", ""},
            {"", "",}, {"", ""}, {"", ""},{"", ""},
            {"", "",}, {"", ""}, {"", ""},{"", ""},
            {"", "",}, {"", ""}, {"", ""},{"", ""},
            {"", "",}, {"", ""}, {"", ""},{"", ""} 
            };


    JTable table = new JTable(data, columnNames);
    table.setBackground(Color.LIGHT_GRAY);
    table.setRowHeight(20);
    table.setBorder(BasicBorders.getMenuBarBorder());

    panel3 = new JScrollPane(table, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
    panel3.add(new JButton("Submit"));
    panel3.add(label_prop);
    panel3.setPreferredSize( new Dimension( 5, 5 ) );
    panel3.setMinimumSize( new Dimension( 5, 5 ) );
    return panel3;


}
//bottom right
public static JScrollPane createPanel4(){

    panel4 = new JScrollPane();
    String[] columnNames = {"Activities","",};
    Object[][] data = {
                {"", "",}, {"", ""}, {"", ""},{"", ""},
                {"", "",}, {"", ""}, {"", ""},{"", ""},
                {"", "",}, {"", ""}, {"", ""},{"", ""},
                {"", "",}, {"", ""}, {"", ""},{"", ""},
                {"", "",}, {"", ""}, {"", ""},{"", ""},
                {"", "",}, {"", ""}, {"", ""},{"", ""},
                {"", "",}, {"", ""}, {"", ""},{"", ""},
                {"", "",}, {"", ""}, {"", ""},{"", ""},
                {"", "",}, {"", ""}, {"", ""},{"", ""} 
                };


    JTable table = new JTable(data, columnNames);
    table.setBackground(Color.LIGHT_GRAY);
    table.setRowHeight(20);
    table.setBorder(BasicBorders.getMenuBarBorder());
    panel4 = new JScrollPane(table, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
    panel4.setPreferredSize( new Dimension( 5, 5 ) );
    panel4.setMinimumSize( new Dimension( 5, 5 ) );
    return panel4;
}

}

Answer 1

看看A Visual Guide to Layout Managers，有一些示例GUI使用布局管理器，并告诉您在哪里可以找到每个布局管理器的操作方法页面。这非常有帮助。

哪种Swing布局可用于开发以下GUI设计？

1 个答案: