将 mouseListener 添加到 BufferedImage 时出错

Question

我想在单击其中一个 buffereImage 时发出声音。但它向我显示了这个错误： BufferedImage 类型的方法 addMouseListener(new MouseAdapter(){}) 是未定义的

代码如下：

public class TestPane extends JPanel {

    public TestPane() {
        setLayout(new PropertionalLayoutManager(400, 400));
        add(new Symbol(), new PropertionalConstraint(0f, 0));
        add(new Symbol(), new PropertionalConstraint(0.67f, 0));
        //add(new Symbol(), new PropertionalConstraint(0f, 0.4675f));
        //add(new Symbol(), new PropertionalConstraint(0.67f, 0.4675f));
        add(new Drum(), new PropertionalConstraint(0.205f, 0.1f));
        add(new Drum(), new PropertionalConstraint(0.5f, 0.1f));
        add(new Drum(), new PropertionalConstraint(0f, 0.33f));
        add(new Drum(), new PropertionalConstraint(0.705f, 0.33f));


     DRUM.addMouseListener(new MouseAdapter()
     {
          public void mouseClicked(MouseEvent me) 
          {
            Sound1.Sound5.play();
          }
        }); 


    }static {

    try {
        SYMBOL = ImageIO.read(new File("HiCrash.png"));
    } catch (IOException ex) {
        ex.printStackTrace();
    }
    try {
        DRUM = ImageIO.read(new File("HiTom.png"));
    } catch (IOException ex) {
        ex.printStackTrace();
    }

}
}

Answer 1

MouseListener 只能添加到可以在屏幕上显示的组件中。默认情况下，BufferedImage 不能在屏幕上显示，除非先被某些组件包裹（例如 JLabel 或绘制到 JPanel 的表面上）。

实际上，您不能将鼠标侦听器添加到任何不支持它的东西...

改为将MouseListener 添加到Drum 或Symbol 类

您可能需要阅读How to write a mouse listener