求 Windows 桌面时钟代码 java实现

2010-12-25 01:18:49 580 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

Windows翻页时钟屏保：轻量安装与多场景应用指南屏幕保护程序是Windows系统中用于保护显示器、提升用户体验的重要功能，其原理是在设备闲置时触发预设动画或界面，避免静态图像长时间停留导致烧屏。从技术价值看，优秀的屏保需兼顾低资源占用与视觉清晰度，尤其在办公、会议等需要快速获取信息的场景中发挥实用价值。以翻页时钟屏保为例，这类工具通过复古动画直观显示时间，其轻量特性（如.scr文件免安装）和低CPU占用（通常低于2%）使其成为工程师和创意工作者的高效选择。本文聚焦Fliqlo等翻页时钟屏保的部署测试，涵盖多分辨率适配与稳定性验证，帮助用户快速实现桌面时钟阅读详情

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STM32CubeMX入门实战：环境搭建、时钟配置与代码生成避坑指南在嵌入式开发中，STM32微控制器的初始化配置常涉及复杂的寄存器操作，而STM32CubeMX作为图形化配置工具，能自动生成初始化代码，显著降低开发门槛。其核心原理是通过图形界面抽象时钟树、外设参数等底层细节，自动计算分频系数并生成HAL库代码，从而提升开发效率与代码可靠性。该工具广泛应用于工业控制、物联网设备及教学实验等场景。然而，环境依赖、芯片包下载、代码生成设置等环节常成为初学者的主要障碍。本文围绕STM32CubeMX的安装配置、时钟树设置及HAL库代码结构，梳理关键操作与常见问题，帮助开发者快速搭阅读详情

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切换为时间正序

haiyalangxin 2010-12-27

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en 知道了大家到相册看看有两部分的时钟和日历都有继承Frame类的

huntor 2010-12-26

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把你的图片上传到你在csdn的相册，然后可以贴过来。
像你在3L那种硬盘图片、没人能看到。

huntor 2010-12-26

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我在ubuntu下、帮不了你了

haiyalangxin 2010-12-26

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要的是系统右下角那个时钟的点开的那个窗口啊

haiyalangxin 2010-12-26

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haiyalangxin 2010-12-26

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单单时钟不够的要类似这样的东西啊

huntor 2010-12-25

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一个简陋的时钟、与系统时钟同步。

import javax.swing.*;

import java.awt.*;

import java.awt.event.*;

import java.awt.geom.*;

import java.util.Calendar;



public class ClockBoard extends JComponent {

    private final int BORDER_WIDTH = 5;

    private final int MARKER_WIDTH = 10;

    private int width = 200;

    private Calendar calendar;

    private Point2D center;

    public ClockBoard(int width){

	this.width = width;

	this.calendar = Calendar.getInstance();

	center = new Point2D.Double(width/2+BORDER_WIDTH,width/2+BORDER_WIDTH);

	setPreferredSize(new Dimension(width+BORDER_WIDTH*2,width+BORDER_WIDTH*2));

    }



    public void tick(){

	calendar.add(Calendar.SECOND,1);

	repaint();

    }



    @Override public void paintComponent(Graphics g){

	super.paintComponent(g);

	Graphics2D g2d = (Graphics2D)g;

	g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_ON);

	g2d.setRenderingHint(RenderingHints.KEY_COLOR_RENDERING,RenderingHints.VALUE_COLOR_RENDER_QUALITY);



	paintBoard(g2d);

	paintHourPointer(g2d);

	paintMinutePointer(g2d);

	paintSecondPointer(g2d);

    }



    private void paintBoard(Graphics2D g2d){

	g2d.setPaint(Color.GREEN.darker().darker());

	g2d.setStroke(new BasicStroke(2));

	g2d.draw(new Ellipse2D.Double(5,5,width,width)); // circle

	g2d.setPaint(Color.GREEN.darker().darker());

	g2d.fill(new Ellipse2D.Double(width/2,5,MARKER_WIDTH,MARKER_WIDTH)); // 12

	g2d.fill(new Ellipse2D.Double(5,width/2,MARKER_WIDTH,MARKER_WIDTH)); // 9

	g2d.fill(new Ellipse2D.Double(width-5,width/2,MARKER_WIDTH,MARKER_WIDTH)); // 3

	g2d.fill(new Ellipse2D.Double(width/2,width-5,MARKER_WIDTH,MARKER_WIDTH)); // 6

	g2d.draw(new Ellipse2D.Double(width/2,width/2,MARKER_WIDTH,MARKER_WIDTH)); // center

	Point2D p1 = new Point2D.Double(width/2+BORDER_WIDTH,BORDER_WIDTH);

	Point2D p2 = new Point2D.Double(width/2+BORDER_WIDTH,BORDER_WIDTH + MARKER_WIDTH/2);

	AffineTransform t1 = AffineTransform.getRotateInstance(Math.PI/6,center.getX(),center.getY());

	g2d.draw(new Line2D.Double(t1.transform(p1,null),t1.transform(p2,null))); // 1

	AffineTransform t2 = AffineTransform.getRotateInstance(Math.PI/3,center.getX(),center.getY());

	g2d.draw(new Line2D.Double(t2.transform(p1,null),t2.transform(p2,null))); // 2

	AffineTransform t3 = AffineTransform.getRotateInstance(Math.PI*2/3,center.getX(),center.getY());

	g2d.draw(new Line2D.Double(t3.transform(p1,null),t3.transform(p2,null))); // 4

	AffineTransform t4 = AffineTransform.getRotateInstance(Math.PI*5/6,center.getX(),center.getY());

	g2d.draw(new Line2D.Double(t4.transform(p1,null),t4.transform(p2,null))); // 5

	AffineTransform t5 = AffineTransform.getRotateInstance(Math.PI*7/6,center.getX(),center.getY());

	g2d.draw(new Line2D.Double(t5.transform(p1,null),t5.transform(p2,null))); // 7

	AffineTransform t6 = AffineTransform.getRotateInstance(Math.PI*8/6,center.getX(),center.getY());

	g2d.draw(new Line2D.Double(t6.transform(p1,null),t6.transform(p2,null))); // 8

	AffineTransform t7 = AffineTransform.getRotateInstance(Math.PI*10/6,center.getX(),center.getY());

	g2d.draw(new Line2D.Double(t7.transform(p1,null),t7.transform(p2,null))); // 10

	AffineTransform t8 = AffineTransform.getRotateInstance(Math.PI*11/6,center.getX(),center.getY());

	g2d.draw(new Line2D.Double(t8.transform(p1,null),t8.transform(p2,null))); // 11

    }



    private void paintHourPointer(Graphics2D g2d){

	final int H_LENGTH = 50;

	Point2D hourPoint = new Point2D.Double(width/2+BORDER_WIDTH,width/2- H_LENGTH);

	double theta = Math.PI*2 * (calendar.get(Calendar.HOUR)*3600 + calendar.get(Calendar.MINUTE)*60 + calendar.get(Calendar.SECOND))/(12*3600);

	AffineTransform transform = AffineTransform.getRotateInstance(theta,center.getX(),center.getY());

	Line2D hourLine = new Line2D.Double(center,transform.transform(hourPoint,null));

	g2d.setStroke(new BasicStroke(4));

	g2d.setPaint(Color.BLUE);

	g2d.draw(hourLine);

    }



    private void paintMinutePointer(Graphics2D g2d){

	final int M_LENGTH = 70;

	Point2D minutePoint = new Point2D.Double(width/2+BORDER_WIDTH, width/2-M_LENGTH);

	double theta = Math.PI * 2 * (calendar.get(Calendar.MINUTE)*60 + calendar.get(Calendar.SECOND))/3600 ;

	AffineTransform transform = AffineTransform.getRotateInstance(theta,center.getX(),center.getY());

	Line2D minuteLine = new Line2D.Double(center,transform.transform(minutePoint,null));

	g2d.setStroke(new BasicStroke(3));

	g2d.setPaint(Color.BLACK);

	g2d.draw(minuteLine);

    }



    private void paintSecondPointer(Graphics2D g2d){

	final int S_LENGTH = 80;

	Point2D secondPoint = new Point2D.Double(width/2+BORDER_WIDTH,width/2-S_LENGTH);

	double theta = Math.PI * 2 * calendar.get(Calendar.SECOND)/60;

	AffineTransform transform = AffineTransform.getRotateInstance(theta,center.getX(),center.getY());

	Line2D secondLine = new Line2D.Double(center,transform.transform(secondPoint,null));	

	g2d.setStroke(new BasicStroke(2));

	g2d.setPaint(Color.RED);

	g2d.draw(secondLine);

    }



    public static void main(final String[] args) {

	java.awt.EventQueue.invokeLater(new Runnable(){

		public void run(){

		    JFrame frame = new JFrame("Clock");

		    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

		    frame.setLocationRelativeTo(null);

		    final ClockBoard board = new ClockBoard(200);

		    board.setBorder(BorderFactory.createEmptyBorder(15,15,15,15));

		    frame.getContentPane().add(board);

		    Timer timer = new Timer(1000,new ActionListener(){

			    public void actionPerformed(ActionEvent e){

				board.tick();

			    }

			});



		    frame.pack();

		    frame.setVisible(true);

		    timer.start();

		}

	    });

    }

}

求 Windows 桌面时钟代码 java实现

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