Java JFrame implementation Without Borders untitled __java

A lot of times we get an interface, do not want the default border, or do not want the top right corner of the maximum button, such as the QQ panel does not have the maximum button.

But I checked a lot of information that can not directly remove the maximum button, you must have the entire border and the title are removed, and then draw their own.

The test code is also simple:

"1" jframe no border without a title

"2" Add a background picture (there are many ways to add a background picture, mostly pictures in the JLabel, JLabel on the Panel, the Panel has a panel above the other controls)

"3" to create ImageIcon, directly with the new ImageIcon ("Img/aaa.jpg"), the creation of the picture can not be placed inside the SRC package, put inside no, I do not know why ...

"3" to implement drag. No border without a title can not be dragged, to achieve their own.

Package com.qiantu.jframe;
Import java.awt.event.ActionEvent;
Import Java.awt.event.ActionListener;
Import Java.awt.event.MouseAdapter;
Import java.awt.event.MouseEvent;

Import Java.awt.event.MouseMotionAdapter;
Import Javax.swing.ImageIcon;
Import Javax.swing.JButton;
Import Javax.swing.JFrame;
Import Javax.swing.JLabel;
Import Javax.swing.JLayeredPane;

Import Javax.swing.JPanel; public class Jframenoborder extends JFrame {public static void main (string[] args) {Jframenoborder j = new Jframeno
		Border ();
	J.setvisible (TRUE);
	Private static final long serialversionuid = 1L;
	Used to handle drag events, indicating the coordinates of the mouse when pressed, relative to jframe int xold = 0;
	
	int yold = 0;

		Public Jframenoborder () {this.setlayout (null); Handle drag Event This.addmouselistener (new Mouseadapter () {@Override public void mousepressed (MouseEvent e) {xold =
				E.getx ();
			Yold = E.gety ();
		}
		}); This.addmousemotionlistener (New Mousemotionadapter () {@Override public void mousedragged (MouseEvent e) {intXonscreen = E.getxonscreen ();
				int yonscreen = E.getyonscreen ();
				int xx = Xonscreen-xold;
				int yy = Yonscreen-yold;
			JFrameNoBorder.this.setLocation (xx, yy);

		}
		});
		JLayeredPane is used to add two layers, one for the background, one for the interface JLayeredPane Layeredpane = new JLayeredPane ();
		Layeredpane.setbounds (0, 0, 200, 200);
		
		This.add (Layeredpane);
		Background panel JPanel Bgpanel = new JPanel ();
		Bgpanel.setbounds (0, 0, 200, 200);
		
		Layeredpane.add (Bgpanel);
		Background picture, add to Background panel inside JLabel Bglabel = new JLabel (New ImageIcon ("Img/bgimage.png"));
		
		Bgpanel.add (Bglabel);
		The main interface, that is, the background above the layer panel JPanel mainpanel = new JPanel ();
		Mainpanel.setbounds (0, 0, 200, 200);
		Mainpanel.setlayout (NULL);

		Layeredpane.add (Mainpanel);
		Close button JButton CloseButton = new JButton ();
		Closebutton.seticon (New ImageIcon ("Img/closebutton.png"));
		Closebutton.setbounds (170, 0, 30, 30);
				Closebutton.addactionlistener (new ActionListener () {@Override public void actionperformed (ActionEvent e) {System.exit (0);
		}
		});
		
		Mainpanel.add (CloseButton);
		This.setbounds (50,50,200,200);
	This.setundecorated (TRUE);
 }
}

Drag schematic: