SWING闪屏-----1

最新推荐文章于 2024-12-06 15:42:55 发布

原创最新推荐文章于 2024-12-06 15:42:55 发布 · 555 阅读

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文章标签：

#swing #import #exception #thread #class #null

本文介绍了一个使用Java Swing实现的图片显示程序。该程序通过继承JFrame创建了一个可显示图片的窗口，并利用多线程技术不断调整窗口大小直至达到屏幕宽度。此外，程序还实现了窗口位置居中及背景颜色设置等功能。

package testpicturejava;

import java.awt.BorderLayout;
import java.awt.Dimension;

import javax.swing.JFrame;
import javax.swing.JPanel;
import java.awt.*;
import javax.swing.JLabel;
import javax.swing.ImageIcon;

/**
* Title: 
*
* Description: 
*
* Copyright: Copyright (c) 2007
*
* Company: 
*
* @author not attributable
* @version 1.0
*/
public class PictueFrame extends JFrame implements Runnable {
 JPanel contentPane;
 JLabel jLabel1 = new JLabel();
 boolean packFrame = false;
 public PictueFrame() {
 try {
 Thread thre = new Thread(this);
 thre.start();
 } catch (Exception exception) {
 exception.printStackTrace();
 }
 }

    /**
     * Component initialization.
     *
     * @throws java.lang.Exception
     */
    private void jbInit() throws Exception {

}

public void run() {

        contentPane = (JPanel) getContentPane();
        contentPane.setLayout(null);
        setSize(new Dimension(1024, 768));
        setTitle("Frame Title");
        this.setUndecorated(true);
        this.setResizable(false);

        jLabel1.setBounds(new Rectangle(9, 9, 1024, 768));
        jLabel1.setIcon(new ImageIcon(PictueFrame.class.getResource(
                "sky.jpg")));
        contentPane.add(jLabel1);
        if (packFrame) {
            this.pack();
        } else {
            this.validate();
        }

        int height = 300;
        int width = 100;
        try {
            while (true) {
                Thread.currentThread().sleep(1);
                this.setSize(new Dimension(height, width));
                this.setBackground(Color.BLUE);
                Dimension screenSize = Toolkit.getDefaultToolkit().
                                       getScreenSize();
                Dimension frameSize = this.getSize();
                if (frameSize.height > screenSize.height) {
                    frameSize.height = screenSize.height;
                }
                if (frameSize.width > screenSize.width) {
                    frameSize.width = screenSize.width;
                    this.dispose();
                    break;
                }
                this.setLocation((screenSize.width - frameSize.width) / 2,
                                 (screenSize.height - frameSize.height) / 2);
                this.show();
                height = height + 6;
                width = width + 10;

            }
        } catch (HeadlessException ex) {
            ex.printStackTrace();
        } catch (InterruptedException ex) {
            ex.printStackTrace();
        }

}
}