这是第一个罪魁祸首……
private void PlaySequenc(){ for(int i = 0 ; i < CurrentSequenceLeingth ; i++) { panBoard[Sequence[i]/2][Sequence[i]%2].pressPane(); try { Thread.sleep(100); } catch (InterruptedException e) {} }}这是从事件调度线程的内容中调用的，
这阻止了它处理任何新的更新或更新UI。
有关更多 详细信息，请参阅 Swing中的并发。
请考虑使用Swing Timer，有关 更多详细信息，请参见如何使用Swing
计时器。
pane.update(pane.getGraphics());在
您在Swing中曾经做过的最糟糕的事情中（非常重要）排名很高Thread.sleep。
看看AWT和
Swing中的 绘画以及
执行自定义
绘画，以
了解绘画在Swing中的工作方式
避免使用null布局，像素完美布局是
现代ui设计中的一种幻觉。有太多因素会影响
组件的单个大小，您无法控制。Swing旨在与
布局经理为核心一起工作，舍弃这些问题不会导致问题
和问题的终结，您将花费越来越多的时间来尝试纠正问题
您可能希望通读Java TM编程语言的代码约定，这将使人们更容易阅读您的代码，并使您阅读其他代码更容易
例如…
因此，此示例非常基础。它具有三个按钮…
- “错误的方式”，这基本上就是您在做什么
- 使用Swing的“计时器方式” Timer
- “工人方式”，它使用 SwingWorker
对于您而言，我仍然认为
Swing Timer是最佳选择，因为
aSwingWorker可以备份更新，一次吐出所有更新，这违背了您为什么要使用它的目的。
import java.awt.AlphaComposite;import java.awt.BorderLayout;import java.awt.Color;import java.awt.Dimension;import java.awt.EventQueue;import java.awt.Graphics;import java.awt.Graphics2D;import java.awt.GridLayout;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.util.ArrayList;import java.util.Collections;import java.util.List;import java.util.logging.Level;import java.util.logging.Logger;import javax.swing.JButton;import javax.swing.Jframe;import javax.swing.JPanel;import javax.swing.SwingWorker;import javax.swing.Timer;import javax.swing.UIManager;import javax.swing.UnsupportedLookAndFeelException;public class Sequence { public static void main(String[] args) { new Sequence(); } public Sequence() { EventQueue.invokeLater(new Runnable() { @Override public void run() { try { UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName()); } catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) { ex.printStackTrace(); } Jframe frame = new Jframe("Testing"); frame.setDefaultCloseOperation(Jframe.EXIT_ON_CLOSE); frame.add(new TestPane()); frame.pack(); frame.setLocationRelativeTo(null); frame.setVisible(true); } }); } public class TestPane extends JPanel { private List<SequencePane> panels = new ArrayList<>(4); private Timer timer; private int sequenceIndex; public TestPane() { setLayout(new BorderLayout()); Color colors[] = new Color[]{Color.RED, Color.GREEN, Color.BLUE, Color.YELLOW}; for (int index = 0; index < 4; index++) { panels.add(new SequencePane(colors[index])); } JPanel content = new JPanel(new GridLayout(2, 2)); for (SequencePane pane : panels) { content.add(pane); } add(content); JButton wrong = new JButton("The wrong way"); JButton timerButton = new JButton("The Timer way"); JButton workerButton = new JButton("The Worker way"); JPanel actions = new JPanel(); actions.add(wrong); actions.add(timerButton); actions.add(workerButton); add(actions, BorderLayout.SOUTH); wrong.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { Collections.shuffle(panels); for (SequencePane pane : panels) { try { pane.setHighlighted(true); Thread.sleep(250); pane.setHighlighted(false); } catch (InterruptedException ex) { } } } }); timer = new Timer(250, new ActionListener() { @Override public void actionPerformed(ActionEvent e) { if (sequenceIndex > 0) { panels.get(sequenceIndex - 1).setHighlighted(false); } if (sequenceIndex < panels.size()) { panels.get(sequenceIndex).setHighlighted(true); sequenceIndex++; } else { timer.stop(); // All done, call some "play" method to begin playing } } }); timerButton.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { timer.stop(); Collections.shuffle(panels); sequenceIndex = 0; timer.start(); } }); SwingWorker worker = new SwingWorker<Object, SequenceState>() { @Override protected Object doInBackground() throws Exception { for (SequencePane pane : panels) { publish(new SequenceState(pane, true)); Thread.sleep(100); publish(new SequenceState(pane, false)); } return null; } @Override protected void process(List<SequenceState> chunks) { SequenceState state = chunks.get(chunks.size() - 1); state.applyState(); } @Override protected void done() { // Back in the EDT, call what ever "play" method you need } }; workerButton.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { Collections.shuffle(panels); SequenceWorker worker = new SequenceWorker(); worker.execute(); } }); } public class SequenceWorker extends SwingWorker<Object, SequenceState> { @Override protected Object doInBackground() throws Exception { for (SequencePane pane : panels) { publish(new SequenceState(pane, true)); Thread.sleep(250); publish(new SequenceState(pane, false)); } return null; } @Override protected void process(List<SequenceState> chunks) { for (SequenceState state : chunks) { state.applyState(); } } @Override protected void done() { // Back in the EDT, call what ever "play" method you need } } public class SequenceState { private SequencePane sequencePane; private boolean highlighted; public SequenceState(SequencePane sequencePane, boolean highlighted) { this.sequencePane = sequencePane; this.highlighted = highlighted; } public SequencePane getSequencePane() { return sequencePane; } public boolean isHighlighted() { return highlighted; } public void applyState() { getSequencePane().setHighlighted(isHighlighted()); } } } public class SequencePane extends JPanel { private boolean highlighted; public SequencePane(Color color) { setOpaque(false); setBackground(color); } public void setHighlighted(boolean highlighted) { this.highlighted = highlighted; repaint(); } public boolean isHighlighted() { return highlighted; } @Override public Dimension getPreferredSize() { return new Dimension(50, 50); } @Override protected void paintComponent(Graphics g) { super.paintComponent(g); Graphics2D g2d = (Graphics2D) g.create(); if (!isHighlighted()) { g2d.setComposite(AlphaComposite.SrcOver.derive(0.25f)); } g2d.setColor(getBackground()); g2d.fillRect(0, 0, getWidth(), getHeight()); g2d.dispose(); } }}
