将背景图像添加到面板 [英] Add an Background image to a Panel
本文介绍了将背景图像添加到面板的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我有 JPanel
,我想添加一张图片作为背景。我该怎么做?
I have a JPanel
, and i want to add an image as its background. How can i do that ?
frame = new JFrame("Some frame");
panel1 = new JPanel();
panel1.setBorder(new EmptyBorder(5, 5, 5, 5));
// NEED TO ADD AN IMAGE TO THIS PANEL
panel1.setLayout(cardlayout);
frame.getContentPane().add(panel1);
frame.setLocationByPlatform(true);
frame.setVisible(true);
我需要将图像添加到面板
我该怎么办?
I need to add an image to the panel
and how can i do it ?
UPDATE 1
panel1 = new JPanel()
{
private static final long serialVersionUID = 1L;
@Override
public void paintComponent(Graphics g)
{
g.drawImage(Toolkit.getDefaultToolkit().createImage("1.jpg"), 0, 0, null);
}
};
推荐答案
您需要覆盖方法 paintComponent (a gref =http://docs.oracle.com/javase/6/docs/api/javax/swing/JPanel.html =的图形g)
nofollow noreferrer> JPanel 并使用 drawImage()
在图形对象 g
,如此示例。
You need to override the method paintComponent(Graphics g)
of JPanel and use drawImage()
on the Graphics object g
as in this example.
另外,请通过 @trashgod 查看这两个示例:
Also, check these two examples by @trashgod:
- example.
- example.
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