我有一个程序，目前我正在尝试在单击时找到面板上的坐标位置。到目前为止我得到了 0,0。有什么建议吗？
P.S - 抱歉缺少评论...
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.util.ArrayList;
import java.lang.Math;
public class ShapePanel extends JPanel{
private JButton startButton, stopButton;
private JTextField textField;
private JLabel label;
private Timer timer;
private final int DELAY = 5;
ArrayList<Shape> obj = new ArrayList<Shape>();
public static void main(String[] args){
JFrame frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.getContentPane().add(new ShapePanel());
frame.pack();
frame.setVisible(true);
}
public ShapePanel(){
DrawingPanel dpanel = new DrawingPanel();
JPanel cpanel = new JPanel();
startButton = new JButton("Start");
stopButton = new JButton("Stop");
cpanel.setLayout(new GridLayout(2,1));
cpanel.add(startButton);
cpanel.add(stopButton);
dpanel.addMouseListener(new MouseListen());
TimerListener tListen = new TimerListener();
startButton.addActionListener(tListen);
stopButton.addActionListener(tListen);
add(cpanel);
add(dpanel);
timer = new Timer(DELAY, tListen);
timer.start();
}
private class TimerListener implements ActionListener{
public void actionPerformed(ActionEvent e){
if (e.getSource() == timer){
for (int i = 0; i < obj.size(); i++){
obj.get(i).move();
}
}else if (e.getSource() == startButton){
timer.start();
}else if (e.getSource() == stopButton){
timer.stop();
}
repaint();
}
}
private class MouseListen implements MouseListener {
public void mousePressed(MouseEvent e) {
}
public void mouseReleased(MouseEvent e) {
}
public void mouseEntered(MouseEvent e) {
}
public void mouseExited(MouseEvent e) {
}
public void mouseClicked(MouseEvent e) {
System.out.println(getX());
}
}
private class DrawingPanel extends JPanel{
DrawingPanel(){
setPreferredSize(new Dimension(400,400));
setBackground(Color.pink);
}
public void paintComponent(Graphics g){
super.paintComponent(g);
for(int i = 0; i < obj.size(); i++){
obj.get(i).display(g);
}
}
}
}
最佳答案
检查代码的以下部分:
public void mouseClicked(MouseEvent e) {
System.out.println(getX());
// you are putting here only getX() which get the postion of panel
// put e.getX() instead
}
关于java - 鼠标点击坐标不起作用，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/19271785/