Scrollbar not showing in JScrollpane

Question

Actually i am adding a Jlayeredpane to a Jscrollpane and then a Jlabel is again added to the Jlayeredpane. I am seeting the size of jlabel explicitly as jlayeredpane has null layout, In the Jlabel i am setting an image.

But the problem is that the scrollbar is not shown here.Please help in the design flaw or guide me to other alternatives.

for better help sooner post an [SSCCE](http://sscce.org/), short, runnable, compilable, shows your issue with PreferredSize for Layer(null layout) — mKorbel, Oct 28 '13 at 13:03
ImageIcon icon = new ImageIcon("output1.jpg"); imageview.setBounds(0, 0, icon.getIconWidth(), icon.getIconHeight()); imageview.setIcon(icon); // imageview is the Jlabel here // and i am adding the jlayeredpane to jscrollpane — Tech Enthusiast, Oct 28 '13 at 13:03
[Don't use `setPreferredSize()` when you really mean to override `getPreferredSize()`](http://stackoverflow.com/q/7229226/230513). — trashgod, Oct 28 '13 at 13:16

score 0 · Answer 1 · answered Oct 28 '13 at 15:40

its may be you expected. but don't use null layout. JScrollPane not work with null layout.

import java.awt.GridLayout;
import java.awt.HeadlessException;
import java.io.File;
import javax.imageio.ImageIO;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;

public class ScrollLabel extends JFrame {

    public ScrollLabel() throws Exception {
        setSize(300, 300);
        setVisible(true);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        panel = new JPanel(new GridLayout());
        pane = new JScrollPane(panel, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
        label = new JLabel();
        ImageIcon icon = new ImageIcon(ImageIO.read(new File(getClass().getResource("baby.jpg").toURI())));
        label.setIcon(icon);
        panel.add(label);
        add(pane);
        repaint();
    }

    public static void main(String[] args) throws Exception {
        new ScrollLabel();
    }
    JPanel panel;
    JLabel label;
    JScrollPane pane;
}

Scrollbar not showing in JScrollpane

1 Answers1