Question

您好我正在尝试使用jscrollpane制作桌面应用程序。我想在jscrollpane中添加multipul按钮。我只能在那里添加单个按钮，我该怎么办呢

我的代码如下：

 public class AddingToJScrollPane {

  public static void main(String args[]) {
    JFrame frame = new JFrame("Tabbed Pane Sample");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    JLabel label = new JLabel("Label");
    label.setPreferredSize(new Dimension(1000, 1000));
    JScrollPane jScrollPane = new JScrollPane(label);

    JButton jButton1 = new JButton("Hello");
     JButton jButton2 = new JButton("Hello");

    jScrollPane.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
    jScrollPane.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
    jScrollPane.setViewportBorder(new LineBorder(Color.RED));
    jScrollPane.getViewport().add(jButton1,jButton2);

    frame.add(jScrollPane, BorderLayout.NORTH);
    frame.setSize(400, 150);
    frame.setVisible(true);
  }
}

更新了代码

public class AddingToJScrollPane {

  public static void main(String args[]) {
    JFrame frame = new JFrame("Tabbed Pane Sample");
    JPanel panel = new JPanel();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
panel.setLayout( new GridLayout() );
    JLabel label = new JLabel("Label");
    label.setPreferredSize(new Dimension(1000, 1000));
    JScrollPane jScrollPane = new JScrollPane(panel);

    JButton jButton1 = new JButton("Hello");
     JButton jButton2 = new JButton("He");

   // jScrollPane.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
    jScrollPane.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
    jScrollPane.setViewportBorder(new LineBorder(Color.RED));
   // jScrollPane.getViewport().add(panel);

    frame.add(jScrollPane, BorderLayout.NORTH);
    panel.add(jButton1);
     panel.add(jButton2);
    frame.setSize(400, 150);
    frame.setVisible(true);
  }
}

如何实现我想要的输出提前致谢

Answer 1

将按钮添加到具有合适布局的面板（例如GridLayout或FlowLayout）。将面板添加到滚动窗格。

如何在JScrollPane上添加JButton？

1 个答案: