我試圖將一個(gè)水族館（它是一個(gè)擴(kuò)展JPanel并包含水族館 img 的類）設(shè)置為背景，并在頂部設(shè)置一條魚（它也是一個(gè)擴(kuò)展 aJPanel并包含魚 img 的類）。問題是它只顯示一個(gè)圖像，而不是水族箱頂部的魚（水族箱或魚，取決于首先添加到 中的那個(gè)JFrame）。主要的public class Core { JFrame window; JLabel label; ImageIcon img; Aquarium aquarium = new Aquarium(); JavaFish javaFish = new JavaFish(); public void start() { window = new JFrame(); window.setPreferredSize(new Dimension(600, 400)); window.setVisible(true); window.setTitle("Java Game"); aquarium.add(javaFish); window.add(aquarium); window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); } public static void main(String[] args) { Core c = new Core(); c.start(); }}水族館public class Aquarium extends JPanel { private BufferedImage img; //Initiate aquarium width public int width; //Initiate aquarium height public int height; @Override protected void paintComponent(Graphics g) { width = getSize().width; height = getSize().height; try { img = ImageIO.read(new File("img/AquariumBackground.png")); } catch (IOException e) { e.printStackTrace(); System.out.println("Image not fount!"); } g.drawImage(img, 0, 0, width, height, this); } }魚public class JavaFish extends JPanel { BufferedImage img; int xPos = 50; int yPos = 50; public JavaFish() { this.setOpaque(false); } @Override protected void paintComponent(Graphics g) { BufferedImage JavaFish = LoadImage("img/JavaFish.png"); Graphics2D g2d = (Graphics2D) g; g2d.drawImage(JavaFish, xPos, yPos, 100, 100, null); repaint(); } BufferedImage LoadImage(String FileName) { img = null; try { img = ImageIO.read(new File (FileName)); } catch (IOException e) { e.printStackTrace(); } return img; }}
如何在 JFrame 上顯示兩個(gè)帶有圖像的 JPanel，并且兩個(gè) img 都可見？
炎炎設(shè)計(jì)
2021-09-15 10:25:32
