如何在JFrame上显示带有透明parst的png 我目前有这个代码,一切都很好,但它显示透明部分灰色!
private static void createAndShowSplashScreen() throws Exception {
Image image = ImageIO.read(TCPServer.class
.getResource("images/splash.png"));
BufferedImage img = (BufferedImage) image;
frame = new JFrame("Splash");
frame.setUndecorated(true);
frame.add(new JLabel(new ImageIcon(image)) {
{
setOpaque(false);
}
});
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setPreferredSize(new Dimension(img.getWidth(), img.getHeight()));
frame.setBounds((int) (java.awt.Toolkit.getDefaultToolkit()
.getScreenSize().getWidth() / 2 - img.getWidth() / 2),
(int) (java.awt.Toolkit.getDefaultToolkit().getScreenSize()
.getHeight() / 2 - img.getHeight() / 2),
img.getWidth(), img.getHeight());
frame.setOpacity(0f);
frame.setMinimumSize(frame.getPreferredSize());
frame.setVisible(true);
}
THX的帮助! 真诚的罗伯托!
编辑: IMG
问题已解决:
Image image = ImageIO.read(TCPServer.class
.getResource("images/splash.png"));
BufferedImage img = (BufferedImage) image;
frame = new JFrame("Splash");
frame.setUndecorated(true);
frame.add(new JLabel(new ImageIcon(image)) {
{
setOpaque(false);
}
});
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setPreferredSize(new Dimension(img.getWidth(), img.getHeight()));
frame.setBounds((int) (java.awt.Toolkit.getDefaultToolkit()
.getScreenSize().getWidth() / 2 - img.getWidth() / 2),
(int) (java.awt.Toolkit.getDefaultToolkit().getScreenSize()
.getHeight() / 2 - img.getHeight() / 2),
img.getWidth(), img.getHeight());
RoundRectangle2D r = new RoundRectangle2D.Double(0, 0, img.getWidth(), img.getHeight(), 25, 25);
frame.setShape(r);
frame.setOpacity(0f);
frame.setMinimumSize(frame.getPreferredSize());
frame.setVisible(true);
答案 0 :(得分:3)
我不知道这是否适合您的具体情况但是如何更改JFrame
的形状以匹配图像? setShape(Shape shape)
允许您使用geom
包中的任何形状。我看到这是一个闪屏并且可能是未修饰的,所以设置形状应该可以解决问题。