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我是新來的java swing。我試圖通過layeredPane
添加由paintComponent()
方法在我的框架形成的繪圖,但它不是在JFrame
在分層平面java中添加繪圖
顯示,如果我把代碼frame.getContentPane().add(drawing)
和評論分層部分代碼工作然而..
我做錯了什麼?
這裏是代碼: 框架類
public class FrameTest extends JFrame {
static JFrame frame= new JFrame("Frame");
public static void main(String[] args) {
FrameTest test= new FrameTest();
}
public FrameTest(){
this.openfrane();
frame.setVisible(true);
frame.setLocationRelativeTo(null);
}
public void openframe(){
//window properties
frame.setDefaultCloseOperation(EXIT_ON_CLOSE);
frame.setSize(1000,600);
frame.setResizable(false);
//changing icon of window
ImageIcon image = new ImageIcon("assets/icon.png");
card.setIconImage(image.getImage());
//label picture background
JLabel background = new JLabel();
ImageIcon back = new ImageIcon("assets/background.jpg");
background.setIcon(back);
background.setLocation(0,-125);
background.setSize(1000,700);
//label for first
JLabel first = new JLabel("Sample text");
first.setForeground(Color.RED);
first.setSize(500,200);
first.setLocation(31, 150);
Draw drawing = new Draw();
JLayeredPane layers = new JLayeredPane();
layers.add(drawing, new Integer(3));
layers.add(first, new Integer(2));
layers.add(background,new Integer(1));
frame.setLayeredPane(layers);
}
}
抽獎類:
public class Draw extends JPanel {
public void paintComponent(Graphics g) {
Graphics2D g2 = (Graphics2D)g;
g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_ON);
int startX = 00;
int startY = 00;
// First circle
Ellipse2D circle1 = new Ellipse2D.Double(startX, startY, 30, 30);
g2.setColor(Color.Black);
g2.draw(circle1);
g2.fill(circle1);
// Second circle
Ellipse2D circle2 = new Ellipse2D.Double(startX+20, startY, 30, 30);
g2.setColor(Color.Black);
g2.draw(circle2);
g2.fill(circle2);
}
}
謝謝,它現在的作品! – Tarounen 2014-09-18 20:54:46