java Swing计时器一个接一个地执行几个任务

我完全清楚很少有类似的问题。 我试图实施提供的解决方案 – 徒劳无功。 …我面临的问题是在另一个之后闪烁按钮。 我可以做一个，但是当按顺序闪烁时 – 一切都会中断。 任何对Java新人的帮助都表示赞赏。 PS我不允许使用Threads。 我现在拥有的是：

Timer colorButton = new Timer(1000, new ActionListener() { @Override public void actionPerformed(ActionEvent e) { for (int i = 0; i < pcArray.length; i++) { playSquare = pcArray[i]; System.out.println("PlaySquare " + playSquare); if (playSquare == 1) { if (alreadyColoredRed) { colorBack.start(); colorButton.stop(); } else { red.setBackground(Color.red); alreadyColoredRed = true; System.out.println("RED DONE"); } } else if (playSquare == 2) { if (alreadyColoredGreen) { colorBack.start(); colorButton.stop(); } else { green.setBackground(Color.green); alreadyColoredGreen = true; System.out.println("GREEN DONE"); } } } } }); Timer colorBack = new Timer(1000, new ActionListener() { @Override public void actionPerformed(ActionEvent e) { for (int i = 0; i < pcArray.length; i++) { playSquare = pcArray[i]; System.out.println("PlaySquare " + playSquare); if (playSquare == 1) { red.setBackground(Color.gray); alreadyColoredRed = false; System.out.println("RED PAINTED BACK"); colorBack.stop(); } else if (playSquare == 2) { green.setBackground(Color.gray); alreadyColoredGreen = false; System.out.println("GREEN PAINTED BACK"); colorBack.stop(); } } } }); 

Answer 1

我不认为有两个Timer实例是要走的路。 摇摆Timer因“漂移”而远离完美节拍而臭名昭着。

最好使用控制所有操作所需的逻辑来创建单个计时器。

EG显示国际象棋骑士的允许动作。

 import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.border.*; public class KnightMove { KnightMove() { initUI(); } ActionListener animationListener = new ActionListener() { int blinkingState = 0; @Override public void actionPerformed(ActionEvent e) { final int i = blinkingState % 4; chessSquares[7][1].setText(""); chessSquares[5][0].setText(""); chessSquares[5][2].setText(""); switch (i) { case 0: setPiece(chessSquares[5][0], WHITE + KNIGHT); break; case 1: case 3: setPiece(chessSquares[7][1], WHITE + KNIGHT); break; case 2: setPiece(chessSquares[5][2], WHITE + KNIGHT); } blinkingState++; } }; public void initUI() { if (ui != null) { return; } ui = new JPanel(new GridLayout(8, 8)); ui.setBorder(new CompoundBorder(new EmptyBorder(4, 4, 4, 4), new LineBorder(Color.BLACK,2))); boolean black = false; for (int r = 0; r < 8; r++) { for (int c = 0; c < 8; c++) { JLabel l = getColoredLabel(black); chessSquares[r][c] = l; ui.add(l); black = !black; } black = !black; } for (int c = 0; c < 8; c++) { setPiece(chessSquares[0][c], BLACK + STARTING_ROW[c]); setPiece(chessSquares[1][c], BLACK + PAWN); setPiece(chessSquares[6][c], WHITE + PAWN); setPiece(chessSquares[7][c], WHITE + STARTING_ROW[c]); } Timer timer = new Timer(750, animationListener); timer.start(); } private void setPiece(JLabel l, int piece) { l.setText("&#" + piece + ";"); } private final JLabel getColoredLabel(boolean black) { JLabel l = new JLabel(); l.setBorder(new LineBorder(Color.DARK_GRAY)); l.setOpaque(true); if (black) { l.setBackground(Color.GRAY); } else { l.setBackground(Color.WHITE); } return l; } public JComponent getUI() { return ui; } public static void main(String[] args) { Runnable r = new Runnable() { @Override public void run() { try { UIManager.setLookAndFeel( UIManager.getSystemLookAndFeelClassName()); } catch (Exception useDefault) { } KnightMove o = new KnightMove(); JFrame f = new JFrame("Knight Moves"); f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); f.setLocationByPlatform(true); f.setContentPane(o.getUI()); f.setResizable(false); f.pack(); f.setVisible(true); } }; SwingUtilities.invokeLater(r); } private JComponent ui = null; JLabel[][] chessSquares = new JLabel[8][8]; public static final int WHITE = 9812, BLACK = 9818; public static final int KING = 0, QUEEN = 1, ROOK = 2, KNIGHT = 4, BISHOP = 3, PAWN = 5; public static final int[] STARTING_ROW = { ROOK, KNIGHT, BISHOP, KING, QUEEN, BISHOP, KNIGHT, ROOK }; }