Java 隐藏滚动条,但它将继续工作
我试图隐藏滚动窗格的垂直条,但我希望它继续垂直滚动。这是我的代码:Java 隐藏滚动条,但它将继续工作,java,swing,jscrollpane,jscrollbar,Java,Swing,Jscrollpane,Jscrollbar,我试图隐藏滚动窗格的垂直条,但我希望它继续垂直滚动。这是我的代码: JScrollPane scroll=new JScrollPane(arbol); scroll.setBounds(35,40, 230, 530); scroll.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER); scroll.setBorder(null);
JScrollPane scroll=new JScrollPane(arbol);
scroll.setBounds(35,40, 230, 530);
scroll.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
scroll.setBorder(null);
scroll.setOpaque(false);
scroll.getVerticalScrollBar().setBorder(null);
scroll.getViewport().setOpaque(false);
JLabel sep=new JLabel(Imagen("SeparaV.png"));
sep.setSize(scroll.getSize());
sep.setLocation(-17, 0);
sep.setHorizontalAlignment(JLabel.RIGHT);
scroll.add(sep);
Frame.add(scroll);
对我来说,这是好的,如果它只显示箭头。这就是我需要的:
对我来说,只要展示箭头就好了
我想你的意思是你不想看到中间的条用来拖动滚动条。如果是这样,则可以使用滚动条的默认操作创建一个仅包含箭头按钮的简单面板:
import java.awt.*;
import javax.swing.*;
import javax.swing.plaf.basic.*;
public class ScrollPaneSSCCE extends JPanel
{
public ScrollPaneSSCCE()
{
setLayout( new BorderLayout() );
JTable table = new JTable(50, 5);
JScrollPane scrollPane = new JScrollPane( table );
scrollPane.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_NEVER);
add(scrollPane);
JScrollBar vertical = scrollPane.getVerticalScrollBar();
JPanel east = new JPanel( new BorderLayout() );
add(east, BorderLayout.EAST);
BasicArrowButton north = new BasicArrowButton(BasicArrowButton.NORTH);
north.setAction( new ActionMapAction("", vertical, "negativeUnitIncrement") );
east.add(north, BorderLayout.NORTH);
BasicArrowButton south = new BasicArrowButton(BasicArrowButton.SOUTH);
south.setAction( new ActionMapAction("", vertical, "positiveUnitIncrement") );
east.add(south, BorderLayout.SOUTH);
}
private static void createAndShowUI()
{
JFrame frame = new JFrame("ScrollPaneSSCCE");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(new ScrollPaneSSCCE());
frame.setSize(200, 300);
frame.setLocationByPlatform( true );
frame.setVisible( true );
}
public static void main(String[] args)
{
EventQueue.invokeLater(new Runnable()
{
public void run()
{
createAndShowUI();
}
});
}
}
您需要查看以了解这是如何工作的。
如果只显示箭头,对我来说是好的。
-我认为不,不好,删除递增/递减按钮,将PreferredSize设置为(0,0),然后用透明度覆盖Thumb,在这里几次,即箭头是滚动条的一部分。。。