Create java swinging frame movable and setUndecorated

Question

I created a frame without a title, for this I used setUndecorated (true); but after that the frame became motionless for some reason.

How can I make my frame movable and still hide my title bar?

Answer 1

The following code will create a JFrame without a title that you can move:

import javax.swing.*; import java.awt.*; import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent; public class FrameDragListenerExample { public static void main(String[] args) { Runnable runnable = new Runnable() { public void run() { final JFrame frame = new JFrame("Hello"); frame.setUndecorated(true); frame.setBounds(0, 0, 400, 400); JPanel contentPane = new JPanel(new BorderLayout()); JLabel label = new JLabel("Click anywhere in the Jframe and drag"); label.setFont(label.getFont().deriveFont(16f)); label.setBorder(BorderFactory.createEmptyBorder(100, 100, 100, 100)); contentPane.add(label); frame.setContentPane(contentPane); FrameDragListener frameDragListener = new FrameDragListener(frame); frame.addMouseListener(frameDragListener); frame.addMouseMotionListener(frameDragListener); frame.pack(); frame.setLocationRelativeTo(null); frame.setVisible(true); } }; SwingUtilities.invokeLater(runnable); } public static class FrameDragListener extends MouseAdapter { private final JFrame frame; private Point mouseDownCompCoords = null; public FrameDragListener(JFrame frame) { this.frame = frame; } public void mouseReleased(MouseEvent e) { mouseDownCompCoords = null; } public void mousePressed(MouseEvent e) { mouseDownCompCoords = e.getPoint(); } public void mouseDragged(MouseEvent e) { Point currCoords = e.getLocationOnScreen(); frame.setLocation(currCoords.x - mouseDownCompCoords.x, currCoords.y - mouseDownCompCoords.y); } } } 

You can drag it by dragging the frame body.

Answer 2

Perhaps this will help you move the window