将mouseListener添加到BuffereImage时发生java错误

Question

我想在点击我的一个buffereImage时发出声音。但它向我显示了一个错误：类型BuffereImage的addMouseListener（new MouseAdapter（）{}）方法未定义

以下是代码：

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装（例如JLabel或绘制在JPanel的表面）

实际上，你不能在任何不支持鼠标侦听器的地方添加鼠标侦听器

相反，将MouseListener添加到Drum或Symbol类中

你可能想通读一下How to write a mouse listener