Java 的swing.GroupLayout布局管理器的使用方法和实例
/*** @author ：陶伟基 ，微博：http://weibo.com/taoandtao* @date ：2012/12/10* @place：广州大学华软软件学院*/import javax.swing.GroupLayout;import javax.swing.GroupLayout.Alignment;import javax.swing.JButton;import javax.swing.JLabel;import javax.swing.JPasswordField;import javax.swing.JRadioButton;import javax.swing.JTextField;public class MyFrame extends javax.swing.JFrame { public static void main(String[] args) { MyFrame f = new MyFrame(); } JLabel label1; JLabel label2; JLabel label3; JTextField tf; JPasswordField psf; JRadioButton rb1; JRadioButton rb2; JButton bt1; JButton bt2; public MyFrame() { this.setVisible(true); this.setSize(250, 220); this.setVisible(true); this.setLocation(400, 200); label1 = new JLabel("华软BBS快捷登陆"); label2 = new JLabel("账号："); label3 = new JLabel("密码："); tf = new JTextField(); psf = new JPasswordField(); rb1 = new JRadioButton("记住密码"); rb2 = new JRadioButton("自动登陆"); bt1 = new JButton("登陆"); // 为指定的 Container 创建 GroupLayout GroupLayout layout = new GroupLayout(this.getContentPane()); this.getContentPane().setLayout(layout); //创建GroupLayout的水平连续组，，越先加入的ParallelGroup，优先级级别越高。 GroupLayout.SequentialGroup hGroup = layout.createSequentialGroup(); hGroup.addGap(5);//添加间隔 hGroup.addGroup(layout.createParallelGroup().addComponent(label2) .addComponent(label3)); hGroup.addGap(5); hGroup.addGroup(layout.createParallelGroup().addComponent(label1) .addComponent(psf).addComponent(rb1).addComponent(rb2) .addComponent(tf).addComponent(bt1)); hGroup.addGap(5); layout.setHorizontalGroup(hGroup); //创建GroupLayout的垂直连续组，，越先加入的ParallelGroup，优先级级别越高。 GroupLayout.SequentialGroup vGroup = layout.createSequentialGroup(); vGroup.addGap(10); vGroup.addGroup(layout.createParallelGroup().addComponent(label1)); vGroup.addGap(10); vGroup.addGroup(layout.createParallelGroup().addComponent(label2) .addComponent(tf)); vGroup.addGap(5); vGroup.addGroup(layout.createParallelGroup().addComponent(label3) .addComponent(psf)); vGroup.addGroup(layout.createParallelGroup().addComponent(rb1)); vGroup.addGroup(layout.createParallelGroup().addComponent(rb2)); vGroup.addGroup(layout.createParallelGroup(Alignment.TRAILING) .addComponent(bt1)); vGroup.addGap(10); //设置垂直组 layout.setVerticalGroup(vGroup); }}?
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