使用showInputDialog显示输入框
------------------siwuxie095
工程名:TestJOptionPane
包名:com.siwuxie095.showdialog
类名:TestInputDialog.java
工程结构目录如下:
代码:
package com.siwuxie095.showdialog;
import java.awt.BorderLayout; import java.awt.EventQueue;
import javax.swing.JFrame; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.UIManager; import javax.swing.UnsupportedLookAndFeelException; import javax.swing.border.EmptyBorder;
import com.sun.java.swing.plaf.windows.WindowsLookAndFeel;
import javax.swing.JButton; import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent;
public class TestInputDialog extends JFrame {
private JPanel contentPane;
/** * Launch the application. */ public static void main(String[] args) { EventQueue.invokeLater(new Runnable() { public void run() { try { TestInputDialog frame = new TestInputDialog(); frame.setVisible(true); } catch (Exception e) { e.printStackTrace(); } } }); }
/** * Create the frame. */ public TestInputDialog() {
try { UIManager.setLookAndFeel(new WindowsLookAndFeel()); } catch (UnsupportedLookAndFeelException e1) { e1.printStackTrace(); }
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setBounds(100, 100, 450, 300); contentPane = new JPanel(); contentPane.setBorder(new EmptyBorder(5, 5, 5, 5)); contentPane.setLayout(new BorderLayout(0, 0)); setContentPane(contentPane);
JButton btnshowinputdialog = new JButton("显示输入框(showInputDialog)");
//为 按钮 添加鼠标点击事件 btnshowinputdialog.addMouseListener(new MouseAdapter() { @Override public void mouseClicked(MouseEvent e) { /** * 直接通过静态方法调用 * 需要指定信息和初始值(默认输入值) * 返回值是 String 类型,创建以接收返回值 * 没有关闭输入框时,后面的主窗体是完全无法操作的(即 阻塞) */ // String input=JOptionPane.showInputDialog("请输入:", "ABC"); // //显示刚才输出的信息 // JOptionPane.showMessageDialog(TestInputDialog.this, input);
//需要指定 父级窗体,信息,标题,信息类型,图标,可选值(数组),初始值(默认输入值) //返回值是 Object 类型,需要强转 String inputx=(String) JOptionPane.showInputDialog(TestInputDialog.this, "请输入你的选择:", "选择", JOptionPane.WARNING_MESSAGE, null, new String[]{"A","B","C"}, "A"); JOptionPane.showMessageDialog(TestInputDialog.this, inputx); } }); btnshowinputdialog.setFocusable(false); contentPane.add(btnshowinputdialog, BorderLayout.NORTH); }
} |
将窗体 JFrame 的 LookAndFeel 设定为 Windows
在根面板 contentPane 的上方添加一个 JButton,
将其 focusable 属性设为 false
为 JButton 添加 mouseClicked 事件,点击 按钮 弹出输入框
运行程序:
【made by siwuxie095】
posted on 2017-04-06 21:11 siwuxie095 阅读(6722) 评论(0) 编辑 收藏 举报