/*
*
*
*/import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.*;
import javax.swing.*;public class Splash_Window extends JWindow {
ImageIcon imageIcon;
public Splash_Window(final JFrame f,int waitTime)
{
super(f);
imageIcon=new ImageIcon(getClass().getResource("/").getPath().replace("%20", " ")+"image/xinlangweibo.jpg");
f.setSize(this.imageIcon.getIconWidth(), this.imageIcon.getIconHeight());
f.setTitle("请选择");
f.setDefaultCloseOperation(3);
f.setUndecorated(true);
if(imageIcon==null)
System.out.println("imageIcon null ");
JPanel p=new JPanel(){
public void paintComponent(Graphics g){//重写paintComponent
super.paintComponent(g);//继承的绘制组件方法
Graphics2D gg=(Graphics2D)g;
if(imageIcon !=null){//绘制背景
gg.drawImage(imageIcon.getImage(),0,0,f.getWidth(),f.getHeight(),f);
System.out.println("draw ");
}
}
};
p.setLayout(null);//空布局 任意摆放
String [] selectItem=new String[]{"请选择关联文件","关联数据库","关联已存文件","默认"};
JComboBox ComboBox_Select=new JComboBox(selectItem);
ComboBox_Select.setVisible(true);
p.add(ComboBox_Select);
ComboBox_Select.setLocation(f.getWidth()/2, f.getHeight()/2);
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
f.setBounds((screenSize.width-this.imageIcon.getIconWidth())/2, (screenSize.height-this.imageIcon.getIconHeight())/2, this.imageIcon.getIconWidth(), this.imageIcon.getIconHeight());
System.out.println((screenSize.width-this.imageIcon.getIconWidth())/2+" "+(screenSize.height-this.imageIcon.getIconHeight())/2);
System.out.println(this.imageIcon.getIconWidth()+" "+this.imageIcon.getIconHeight());
f.setContentPane(p);//不可直接用f.add(p);
// f.add(ComboBox_Select);
f.setVisible(true); pack(); f.addMouseListener(new MouseAdapter()
{
public void mousePressed(MouseEvent e) {
setVisible(false);
System.exit(0);
dispose();
}
});
} public static void main(String [] args){
final JFrame f=new JFrame();
Splash_Window sWindow=new Splash_Window(f,10000);
}
}
运行之后只有一个自己做的窗体，ComboBox却显示不出来，求解决方法！
这句去掉
现在的api已经可以直接用f.add(p);了,你可以试一试