创建 Java 对话框
创建对话框最简单的方法是什么:
What would be the easiest way for creating a dialog:
- 在一个窗口中,我提供信封寻址数据,同时从大小列表中设置字体类型
- 单击确定"后,在同一窗口或下一个窗口中,我可以预览使用给定名称的信封外观,并使用选定的字体大小
它应该类似于:
替代文字 http://img15.imageshack.us/img15/7355/lab10aa.gif
我应该使用 Jdialog 吗?还是 JOptionPane 就足够了?下一步将是选择字体和背景的颜色,所以我必须牢记这一点.
Should I use Jdialog? Or will JOptionPane will be enough? The next step will be to choose color of font and background so I must keep that in mind.
推荐答案
如果需要使用JOptionPane:
If you need to use JOptionPane :
import java.awt.*;
import javax.swing.*;
public class Main extends JFrame {
private static JTextField nameField = new JTextField(20);
private static JTextField surnameField = new JTextField();
private static JTextField addr1Field = new JTextField();
private static JTextField addr2Field = new JTextField();
private static JComboBox sizes = new JComboBox(new String[] { "small", "medium", "large", "extra-large" });
public Main(){
JPanel mainPanel = new JPanel();
mainPanel.setLayout(new BoxLayout(mainPanel, BoxLayout.Y_AXIS));
getContentPane().add(mainPanel);
JPanel addrPanel = new JPanel(new GridLayout(0, 1));
addrPanel.setBorder(BorderFactory.createTitledBorder("Receiver"));
addrPanel.add(new JLabel("Name"));
addrPanel.add(nameField);
addrPanel.add(new JLabel("Surname"));
addrPanel.add(surnameField);
addrPanel.add(new JLabel("Address 1"));
addrPanel.add(addr1Field);
addrPanel.add(new JLabel("Address 2"));
addrPanel.add(addr2Field);
mainPanel.add(addrPanel);
mainPanel.add(new JLabel(" "));
mainPanel.add(sizes);
String[] buttons = { "OK", "Cancel"};
int c = JOptionPane.showOptionDialog(
null,
mainPanel,
"My Panel",
JOptionPane.DEFAULT_OPTION,
JOptionPane.PLAIN_MESSAGE,
null,
buttons,
buttons[0]
);
if(c ==0){
new Envelope(nameField.getText(), surnameField.getText(), addr1Field.getText()
, addr2Field.getText(), sizes.getSelectedIndex());
}
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
pack();
setVisible(true);
}
public static void main(String[] args) {
new Main();
}
}
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