java绘制自定义窗体.docx

java自定义窗体大家都说java图形界面不尽人意，相比C#，VB的快捷方便简直不可同日而语。但是如果仔细研究的话，也不尽然，我们通过代码同样可以实现自己想要的漂亮界面。下面就给大家介绍一下，如何使用java自己定义一个去除系统边框，使用自己喜欢的图片作为窗体主体的方法。简述一下方法步骤：1. 去除系统边框2. 为窗体设置一个放置组件的容器JPanel，并设置布局3. 向容器中添加标题栏，然后添加鼠标监听事件4.加入主体部分此程序为java经典案例之一，初级必学，在此分享给大家，感谢那些帮助我，启发我的朋友们！import java.awt.BorderLayout;import java.awt.Dimension;import java.awt.FlowLayout;import java.awt.Graphics;import java.awt.GridLayout;import java.awt.Image;import java.awt.Point;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.awt.event.ItemEvent;import java.awt.event.ItemListener;import java.awt.event.MouseAdapter;import java.awt.event.MouseEvent;import java.awt.event.MouseMotionAdapter;import java.io.File;import java.io.IOException;import javax.imageio.ImageIO;import javax.swing.ImageIcon;import javax.swing.JButton;import javax.swing.JFrame;import javax.swing.JPanel;import javax.swing.JToggleButton;publicclassMyImgFrameextends JFrame{ JPanel contentPanel; Point pressedPoint;public MyImgFrame() throws IOException{this.setUndecorated(true);this.setDefaultCloseOperation(EXIT_ON_CLOSE);this.setBounds(200, 80, 400, 380);this.setVisible(true);//this.pack();contentPanel=new JPanel();contentPanel.setBorder(null);contentPanel.setLayout(new BorderLayout(0,0));this.setContentPane(contentPanel); MyBacPanel topPanel=new MyBacPanel(); Image topimg=ImageIO.read(new File(E:\\Images\\15.jpg)); Dimension dim=new Dimension(topimg.getWidth(this),topimg.getHeight(this)); topPanel.setPreferredSize(dim); topPanel.setImg(topimg); topPanel.addMouseMotionListener(new MouseMotionAdapter(){publicvoid mouseDragged(MouseEvent e){ topPanel_mouseDragged(e); } }); topPanel.addMouseListener(new MouseAdapter(){publicvoid mousePressed(MouseEvent e){ topPanel_mousePressed(e); } }); contentPanel.add(topPanel,BorderLayout.NORTH); topPanel.setLayout(new FlowLayout(FlowLayout.RIGHT,5,5)); JPanel controlJP=new JPanel(); controlJP.setPreferredSize(new Dimension(60,22)); controlJP.setOpaque(false); topPanel.add(co