无法在JLabel

Question

我想动画放置在JLabel中的图片，就像您在下面看到的那样。

我的动画有问题。代码不会产生任何错误，但它只能无限期地在void中运行。

阶级障碍：

package imageTest;

import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.IOException;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.Timer;

public class Obstacle extends JPanel  {

//Position
int posX,posY;
public int getPosX(){
    return this.posX;
}
public void setPosX(int posX){
    this.posX=posX;
}
public int getPosY(){
    return this.posY;
}
public void setPosY(int posY){
    this.posY=posY;
}

public int fctHasard(int borneInf,int borneSup){
    int random = (int)(Math.random() * (borneSup-borneInf)) + borneInf;
    return random;
}

//Image Obstacle
Image imgObstacle =new Image("C:\\Users\\antoine\\Desktop\\imgProjetObstacle.JPG");

JLabel labImgObstacle =null;

public void fctDessinerObstacle(JFrame fenPrincipale, JPanel panPrincipale) throws IOException{

    int posXDepart=fctHasard(0,fenPrincipale.getWidth()),posYDepart=ImageUtil.getImageHeight(imgObstacle.adresseImg);


    posX=posXDepart;
    posY=posYDepart;
    labImgObstacle=imgObstacle.fctAfficherImg(panPrincipale, posX,posY,ImageUtil.getImageWidth(imgObstacle.adresseImg), ImageUtil.getImageHeight(imgObstacle.adresseImg));
    panPrincipale.add(labImgObstacle);

    //fctMouvement(fenPrincipale, labImgObstacle ,panPrincipale,posX,posY);

}

public void fctMouvement(JFrame fenPrincipale, JLabel labImgObstacle , JPanel panPrincipale,int posX ,int posY) throws IOException{
    boolean continuer=true;

    while(continuer){
        posY++;
        labImgObstacle=imgObstacle.fctAfficherImg(panPrincipale, posX,posY,ImageUtil.getImageWidth(imgObstacle.adresseImg), ImageUtil.getImageHeight(imgObstacle.adresseImg));
        panPrincipale.add(labImgObstacle);
        panPrincipale.repaint();//remetlefondvierge
        if(posY==fenPrincipale.getHeight()){
            posX=fctHasard(0,fenPrincipale.getWidth());
            posY=-ImageUtil.getImageHeight(imgObstacle.adresseImg);
            //remet le fond vierge
            labImgObstacle=imgObstacle.fctAfficherImg(panPrincipale, posX,posY,ImageUtil.getImageWidth(imgObstacle.adresseImg), ImageUtil.getImageHeight(imgObstacle.adresseImg));
            panPrincipale.add(labImgObstacle);
        }
    }
}


}

EDIT1：

Answer 1

我试着理解你的问题，将图像移动到JLabel中吗？ 在这种情况下，我尝试将图像作为图标放入Jlabel并在点击JPanel时移动，如下所示：

import java.awt.Dimension;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JFrame;
import javax.swing.ImageIcon;
import javax.swing.UIManager;
import javax.swing.SwingUtilities;


public class Main extends JPanel {

    public JLabel label1 ;
    private int x = 100; 
    private int y = 5;

    public Main() {

        setLayout(null);
        setPreferredSize(  new Dimension(640, 480 ) );

        addMouseListener(new MouseListener() {
            @Override
            public void mousePressed(MouseEvent e) {               
                x = x + 10;
                y = y + 10;
                label1.setBounds(x + getInsets().left, y + getInsets().top,   label1.getPreferredSize().width,  label1.getPreferredSize().height);
            }
            @Override
            public void mouseClicked(MouseEvent e) {
            }
            @Override
            public void mouseReleased(MouseEvent e) {
            }
            @Override
            public void mouseEntered(MouseEvent e) {
            }
            @Override
            public void mouseExited(MouseEvent e) {
            }
        });


        ImageIcon icon = createImageIcon("middle.gif", "a pretty but meaningless splat");

        label1 = new JLabel("Image and Text",icon, JLabel.CENTER);
        add(label1);

        label1.setBounds(x + getInsets().left, y + getInsets().top,   label1.getPreferredSize().width,  label1.getPreferredSize().height);
    }


    protected static ImageIcon createImageIcon(String path,
                                               String description) {
        java.net.URL imgURL = Main.class.getResource(path);
        if (imgURL != null) {
            return new ImageIcon(imgURL, description);
        } else {
            System.err.println("Couldn't find file: " + path);
            return null;
        }
    }

    /**
     * Create the GUI and show it.  For thread safety,
     * this method should be invoked from the
     * event dispatch thread.
     */
    private static void createAndShowGUI() {
        JFrame frame = new JFrame("Demo");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        frame.add(new Main());

        frame.pack();
        frame.setVisible(true);
    }

    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
        UIManager.put("swing.boldMetal", Boolean.FALSE);

        createAndShowGUI();
            }
        });
    }
}

可能是开始制作动画的开始吗？