所以我有這個班。我們將其稱爲ProcessBox。我有另一個叫Process的類,它有一個ProcessBox作爲成員變量。然後,在我的主要方法中,我有一個ProcessList對象的ArrayList(每個對象都有自己的ProcessBox)。我將如何去做,以便我的ProcessBox會更新每個x毫秒(其中x是用戶指定的,我已經有用於輸入x的偵聽器)。以下是我的ProcessBox類。這是我希望重繪每x毫秒(除了它們的整個列表)。使用用戶指定的計時器更新gui中的JPanel和屬性?
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);
}
}
http://docs.oracle.com/javase/7/docs/api/javax/swing/Timer.html – camickr
在這個擺動計時器內我該做什麼?我是GUI新手。 – snotyak
你讀過API了嗎?您是否按照「如何使用計時器」的Swing教程鏈接?你下載並嘗試這個例子嗎?這個例子的哪部分你不瞭解? – camickr