java - 使用用户指定的计时器更新图形用户界面中的 JPanel 和属性？

Question

所以我有这门课。我们称它为 ProcessBox。我有另一个名为 Process 的类，它有一个 ProcessBox 作为成员变量。然后，在我的主要方法中，我有一个 Process 对象的 ArrayList(每个对象都有自己的 ProcessBox)。我将如何着手制作它以便我的 ProcessBox 每 x 毫秒更新一次(其中 x 是用户指定的。我已经完成了输入 x 的监听器)。下面是我的 ProcessBox 类。这就是我希望每 x 毫秒重绘的内容(除了它们的整个列表)。

import java.awt.*;

import javax.swing.*;
import javax.swing.border.LineBorder;

import java.util.*;

public class ProcessBox extends JPanel {
    GridBagLayout gbc_panel;

    public ProcessBox(Process p) {
        super(new GridBagLayout());
        gbc_panel = new GridBagLayout();
        gbc_panel.columnWidths = new int[] { 0, 0, 0 };
        gbc_panel.rowHeights = new int[] { 0, 0, 0, 0, 0, 0 };
        gbc_panel.columnWeights = new double[] { 0, 0, Double.MIN_VALUE };
        gbc_panel.rowWeights = new double[] { 0.0, 0.0, 0.0, 0.0, 0.0,
                Double.MIN_VALUE };
        super.setLayout(gbc_panel);


        setPreferredSize(new Dimension(110, 110));
        setMinimumSize(new Dimension(110, 110));
        setAlignmentX(Component.LEFT_ALIGNMENT);
        setBorder(new LineBorder(new Color(0, 0, 0), 1));
        setSize(new Dimension(110, 110));

        String name = p.getName();
        int priority = p.getPriority();
        int minPriority = p.getMinPriority();
        ArrayList<Integer> times = p.getTime();
        Random r = new Random(System.currentTimeMillis());
        setBackground(new Color(r.nextInt(255 - 210) + 210,
                r.nextInt(255 - 210) + 210, r.nextInt(255 - 210) + 210));

        JLabel lblNewLabel = new JLabel("ID:");
        GridBagConstraints gbc_lblNewLabel = new GridBagConstraints();
        gbc_lblNewLabel.gridheight = 2;
        gbc_lblNewLabel.insets = new Insets(0, 0, 5, 5);
        gbc_lblNewLabel.gridx = 0;
        gbc_lblNewLabel.gridy = 0;
        add(lblNewLabel, gbc_lblNewLabel);

        JLabel lblNewLabel_1 = new JLabel(name);
        GridBagConstraints gbc_lblNewLabel_1 = new GridBagConstraints();
        gbc_lblNewLabel_1.gridheight = 2;
        gbc_lblNewLabel_1.insets = new Insets(0, 0, 5, 0);
        gbc_lblNewLabel_1.gridx = 1;
        gbc_lblNewLabel_1.gridy = 0;
        add(lblNewLabel_1, gbc_lblNewLabel_1);

        JLabel lblNewLabel_2 = new JLabel("Priority:");
        GridBagConstraints gbc_lblNewLabel_2 = new GridBagConstraints();
        gbc_lblNewLabel_2.insets = new Insets(0, 0, 5, 5);
        gbc_lblNewLabel_2.gridx = 0;
        gbc_lblNewLabel_2.gridy = 2;
        add(lblNewLabel_2, gbc_lblNewLabel_2);

        JLabel lblNum = new JLabel(Integer.toString(priority));
        GridBagConstraints gbc_lblNum = new GridBagConstraints();
        gbc_lblNum.insets = new Insets(0, 0, 5, 0);
        gbc_lblNum.gridx = 1;
        gbc_lblNum.gridy = 2;
        add(lblNum, gbc_lblNum);

        JLabel lblNewLabel_3 = new JLabel("Min:");
        GridBagConstraints gbc_lblNewLabel_3 = new GridBagConstraints();
        gbc_lblNewLabel_3.insets = new Insets(0, 0, 5, 5);
        gbc_lblNewLabel_3.gridx = 0;
        gbc_lblNewLabel_3.gridy = 3;
        add(lblNewLabel_3, gbc_lblNewLabel_3);

        JLabel lblMp = new JLabel(Integer.toString(minPriority));
        GridBagConstraints gbc_lblMp = new GridBagConstraints();
        gbc_lblMp.insets = new Insets(0, 0, 5, 0);
        gbc_lblMp.gridx = 1;
        gbc_lblMp.gridy = 3;
        add(lblMp, gbc_lblMp);

        JLabel lblTimeSlice = new JLabel("Slice:");
        GridBagConstraints gbc_lblTimeSlice = new GridBagConstraints();
        gbc_lblTimeSlice.insets = new Insets(0, 0, 0, 5);
        gbc_lblTimeSlice.gridx = 0;
        gbc_lblTimeSlice.gridy = 4;
        add(lblTimeSlice, gbc_lblTimeSlice);

        JLabel lblLeft = new JLabel(Integer.toString(times.get(0)));
        GridBagConstraints gbc_lblLeft = new GridBagConstraints();
        gbc_lblLeft.gridx = 1;
        gbc_lblLeft.gridy = 4;
        add(lblLeft, gbc_lblLeft);
        setVisible(true);

}

Answer 1

以 How to Use Swing Timers 开头看看examples ，例如MarqueeTest或 AnimationTest .