看起复杂,其实不复杂,嘿嘿!
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets; import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPasswordField;
import javax.swing.JTextField; public class LoginJFrameTest {
private JFrame jframe;
private JLabel jlabel,jlabel1;
private GridBagLayout gridbag;
private GridBagConstraints constraints;
private JTextField jtfield1;
private JPasswordField jpfield1;
private JButton jbutton1,jbutton2,jbutton3;
public LoginJFrameTest(){
jframe = new JFrame();
jlabel = new JLabel();
jlabel1 = new JLabel();
jtfield1 = new JTextField();
jpfield1 = new JPasswordField();
gridbag = new GridBagLayout();
jbutton1 = new JButton();
jbutton2 = new JButton();
jbutton3 = new JButton();
init();
}
private void init(){
jframe.setTitle("全屏幕测试");
jlabel.setText("用户名:");
jlabel1.setText("密 码:");
jbutton1.setText("登 录");
jbutton2.setText("退 出");
jbutton3.setText("更改密码");
jframe.setUndecorated(true);
jframe.getGraphicsConfiguration().getDevice().setFullScreenWindow(jframe);
jframe.setLayout(gridbag);
//用户名文本框显示
constraints = getGridBagConstraints(0,0,1,1,0,0,GridBagConstraints.CENTER,
GridBagConstraints.NONE,new Insets(10,0,10,0),0,0);
gridbag.setConstraints(jlabel, constraints);
jframe.add(jlabel);
//用户名输入框显示
constraints = getGridBagConstraints(1,0,1,1,0,0,GridBagConstraints.CENTER,
GridBagConstraints.NONE,new Insets(10,0,10,0),100,0);
gridbag.setConstraints(jtfield1, constraints);
jframe.add(jtfield1);
//密码文本框显示
constraints = getGridBagConstraints(0,1,1,1,0,0,GridBagConstraints.CENTER,
GridBagConstraints.NONE,new Insets(10,0,10,0),0,0);
gridbag.setConstraints(jlabel1, constraints);
jframe.add(jlabel1);
//密码输入框显示
constraints = getGridBagConstraints(1,1,1,1,0,0,GridBagConstraints.CENTER,
GridBagConstraints.NONE,new Insets(10,0,10,0),100,0); gridbag.setConstraints(jpfield1, constraints);
jframe.add(jpfield1);
//更改密码按钮显示
constraints = getGridBagConstraints(0,2,1,1,0,0,GridBagConstraints.CENTER,
GridBagConstraints.NONE,new Insets(10,0,10,0),0,0); gridbag.setConstraints(jbutton3, constraints);
jframe.add(jbutton3);
//登录按钮显示
constraints = getGridBagConstraints(1,2,1,1,0,0,GridBagConstraints.CENTER,
GridBagConstraints.NONE,new Insets(10,0,10,0),0,0); gridbag.setConstraints(jbutton1, constraints);
jframe.add(jbutton1); //退出按钮显示
constraints = getGridBagConstraints(2,2,1,1,0,0,GridBagConstraints.CENTER,
GridBagConstraints.NONE,new Insets(10,0,10,0),0,0); gridbag.setConstraints(jbutton2, constraints);
jframe.add(jbutton2);
}
private static GridBagConstraints getGridBagConstraints(int gridx,int gridy,int gridwidth,
int gridheight,double weightx,double weighty,int anchor,int fill,Insets insets,
int ipadx,int ipady){ return new GridBagConstraints(gridx, gridy, gridwidth, gridheight, weightx, weighty,
anchor, fill, insets, ipadx, ipady);
}
public void showMe(){
jframe.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
jframe.setVisible(true);
}
public static void main(String[] args) {
new LoginJFrameTest().showMe();
}
}
参数说明: gridx=0; //放在第0列
gridy=0; //放在第0行
gridwidth=1; //组件的长度
gridheight=1; //组件的高度
weightx=10; //组件根据窗口的大小而变化,系数为10,1
weighty=1;
anchor=GridBagConstraints.CENTER; //组件大于放置空间位置时,将组件放置在中心
fill=GridBagConstraints.HORIZONTAL; //显示区域变化时,设置组件是否变化。
inset=new Insets(0,0,0,0); //设置组件间上下左右间距
ipadx=0; //设置组件内的间距
ipady=0; |