我正在为我的客户创建一个配置文件界面。但是,当我在“网格布局”中指定像素数时,它似乎不起作用。我试图降低JLabel的高度,但这也没有任何效果。
[另外,我如何增加JLabel和JPanel之间的填充。谢谢
更新:我尝试将背景图像添加到JPanel而不是添加到JLabel。现在的问题是,宽度和高度没有生效。它只是显示了我背景图片的一小部分
public CustomerProfile()
{
super("Customer Profile");
setLayout(new BorderLayout());
//BACKGROUND IMAGE OF THE PROFILE JPANEL
ImageIcon backgroundImg= new ImageIcon("background.jpg");
//background = new JLabel("",background_img,JLabel.CENTER);
//background.setLayout(new BorderLayout());
//PROFILE DETAILS JPANEL
jpProfile = new JPanel() {
@Override
protected void paintComponent(Graphics g)
{
super.paintComponent(g);
g.drawImage(backgroundImg.getImage(),0,0,450,775,null);
}
};
add(jpProfile, BorderLayout.WEST);
//jpProfile.add(background);
/*//PROFILE ICON
ImageIcon profImg = new ImageIcon("female.png");
jlProfileIcon = new JLabel("",profImg,JLabel.CENTER);
//ADDING PROFILE ICON TO JLABEL background
background.add(jlProfileIcon,BorderLayout.NORTH);
//DEFINING FONT
standardFont = new Font("Serif",Font.BOLD,20);
//JLABELS FOR PROFILE INFO
jlCusName = new JLabel("Name: ");
jlCusName.setFont(standardFont);
jlCusName.setForeground(Color.WHITE);
jlCusAddr = new JLabel("Address: ");
jlCusAddr.setFont(standardFont);
jlCusAddr.setForeground(Color.WHITE);
jlCusEmail = new JLabel("Email: ");
jlCusEmail.setFont(standardFont);
jlCusEmail.setForeground(Color.WHITE);
jlCusPhone = new JLabel("Phone: ");
jlCusPhone.setFont(standardFont);
jlCusPhone.setForeground(Color.WHITE);
jlCusProblem = new JLabel("Problems: ");
jlCusProblem.setFont(standardFont);
jlCusProblem.setForeground(Color.WHITE);
//JPANEL FOR PROFILE INFO
jpProfileInfo = new JPanel();
jpProfileInfo.setLayout(new GridLayout(5,1,0,0));
jpProfileInfo.setOpaque(false);
//ADDING JLABELS TO JPANEL
jpProfileInfo.add(jlCusName);
jpProfileInfo.add(jlCusAddr);
jpProfileInfo.add(jlCusEmail);
jpProfileInfo.add(jlCusPhone);
jpProfileInfo.add(jlCusProblem);
//ADDING JPANEL TO background JLABEL
background.add(jpProfileInfo,BorderLayout.WEST);
*/
}
public static void main(String[] args)
{
CustomerProfile cp = new CustomerProfile();
cp.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
cp.setSize(900,775);
cp.setVisible(true);
}
}
但是,当我在“网格布局”中指定像素数时,它似乎不起作用。
正确。 GridLayout将展开/收缩以填充可用空间。
因此您可以使用包装面板:
JPanel labelPanel = news JPanel( new GridLayout(…) );
labelPanel.add(…);
JPanel wrapperPanel = new JPanel( new BorderLayout() );
wrapperPanel.add(labelPanel, BorderLayout.PAGE_START); // now the height is respected
background.add(wrapperPanel, BorderLayout.LINE_START); // now the width is respected