爲什麼我的程序不能處理鼠標移動？ （Java）

Question

我嘗試做一些很酷的「鼠標跟蹤器」。它記錄你的鼠標位置，直到你按下「跟蹤」按鈕，當你點擊它時，它「恢復」鼠標位置。

它似乎不處理mouseMove方法。爲什麼？

import java.awt.AWTException; 
import java.awt.Dimension; 
import java.awt.Point; 
import java.awt.Robot; 
import java.awt.event.ActionEvent; 
import java.awt.event.ActionListener; 
import java.awt.event.MouseEvent; 
import java.awt.event.MouseMotionListener; 
import javax.swing.JButton; 
import javax.swing.JFrame; 


public class Mouse implements MouseMotionListener { 
    JFrame frame = new JFrame(); 
    JButton move = new JButton("Track"); 
    Point[] points = new Point[100000]; 
    int i = 0; 


    public Mouse() { 
     // restore on track 
     move.addActionListener(new ActionListener() { 

      @Override 
      public void actionPerformed(ActionEvent arg0) { 
       try { 
        Mouse.this.restore(); 
       } catch (InterruptedException | AWTException e) { 
        // TODO Auto-generated catch block 
        e.printStackTrace(); 
       } 

      } 
     }); 
     // initialize component 
     frame.setPreferredSize(new Dimension(300, 300)); 
     frame.getContentPane().add(move); 
     frame.addMouseMotionListener(this); 
     frame.pack(); 
     frame.setVisible(true); 
    } 
    @Override 
    public void mouseDragged(MouseEvent e) {} 

    @Override 
    public void mouseMoved(MouseEvent e) { 
     System.out.println("Mouve move"); 
     if(i < 100000) { 
      points[i] = e.getLocationOnScreen(); 
      i++; 
     } 
    } 

    public void restore() throws InterruptedException, AWTException { 
     System.out.println("Mouse restored"); 
     for(int j = 0; j < i; j++) { 
      Robot r = new Robot(); 
      r.mouseMove(points[j].x, points[j].y); 
      Thread.sleep(100); 
     } 
    } 

    public static void main(String[] args) { 
     Mouse s = new Mouse(); 
    } 

} 

Answer 1

1. 添加MouseListener到JFrame或其ContentPane，不JButton - 使用SwingUtilities.invokeLater()
2. 在EDT線程主要原因
3. 運行的Swing從JFrame中刪除mouseMotionListener當你調用restore
4. 認沽在循環外創建機器人

這

for(int j = 0; j < i; j++) { 
    Robot r = new Robot(); 

到

Robot r = new Robot(); 
for(int j = 0; j < i; j++) {