布局管理器使用代码

 
Class
{
super("Teradata DataPump 1.0");   //设置窗口标题
this.setResizable(false);         //禁止改变窗口的大小
 
//实例化一个布局的类
       LoginFrameLayout customLayout = new LoginFrameLayout();
       getContentPane().setFont(new Font("Helvetica", Font.PLAIN, 12)); 
       getContentPane().setLayout(customLayout);        //设置容器  
 
 
Icon splash=new ImageIcon("image/logo.jpg");   //加入图片、按钮、文本框等
label_1 = new JLabel(splash);
getContentPane().add(label_1);     
 
        pack();
       setLocationRelativeTo(getOwner());   //将页面显示在屏幕最中间
 
 
 
 
/*
 *
 * 添加一个类，用于布局
 */
       class LoginFrameLayout implements LayoutManager {                               
           public LoginFrameLayout() {                                                 
           }                                                                                                                                                     
           public void addLayoutComponent(String name, Component comp) {               
           }                                                                                                                                                     
           public void removeLayoutComponent(Component comp) {                         
           }                                                                                                                                                     
           public Dimension preferredLayoutSize(Container parent) {                    
               Dimension dim = new Dimension(0, 0);                                                                                                            
               Insets insets = parent.getInsets();                                     
               dim.width = 423 + insets.left + insets.right;                           
               dim.height = 469 + insets.top + insets.bottom;                                                                                                
               return dim;                                                             
           }                                                                                                                                                 
           public Dimension minimumLayoutSize(Container parent) {                      
               Dimension dim = new Dimension(0, 0);                                    
                return dim;                                                             
           }                                                                                                                                                   
           public void layoutContainer(Container parent) {                             
               Insets insets = parent.getInsets();                                                                                                       
               Component c;                                                             
               c = parent.getComponent(0);                                             
               if (c.isVisible()) {c.setBounds(insets.left+16,insets.top+16,392,264);}  //picture
               c = parent.getComponent(1);           //设置空间的位置大小                                
               if (c.isVisible()) {c.setBounds(insets.left+16,insets.top+16,392,264);}   //logo
               c = parent.getComponent(2);                                             
               if (c.isVisible()) {c.setBounds(insets.left+120,insets.top+400,88,32);}  //button logout
               c = parent.getComponent(3);                                             
           }                                                                           
       }             
 
}