Java捕获窗口状态事件
Java捕获窗口状态事件
Java捕获窗口状态事件:
- package com.han;
- import java.awt.Frame;
- import java.awt.event.WindowEvent;
- import java.awt.event.WindowStateListener;
- import javax.swing.JFrame;
- /**
- * 捕获窗口状态事件
- * @author HAN
- *
- */
- public class WindowEvent_2 extends JFrame {
- /**
- *
- */
- private static final long serialVersionUID = -2809729177140674307L;
- public WindowEvent_2() {
- // TODO Auto-generated constructor stub
- addWindowStateListener(new WindowStateListener() {
- @Override
- public void windowStateChanged(WindowEvent e) {
- // TODO Auto-generated method stub
- int oldState = e.getOldState();
- int newState = e.getNewState();
- String from = null;
- String to;
- switch (oldState) {
- case Frame.NORMAL:
- from = "正常化";
- break;
- case Frame.MAXIMIZED_BOTH:
- from = "最大化";
- break;
- case Frame.ICONIFIED:
- from = "图标化";
- break;
- }
- switch (newState) {
- case Frame.NORMAL:
- to = "正常化";
- break;
- case Frame.MAXIMIZED_BOTH:
- to = "最大化";
- break;
- default:
- to = "图标化";
- break;
- }
- System.out.println(from + "---->" + to);
- }
- });
- }
- /**
- * @param args
- */
- public static void main(String[] args) {
- // TODO Auto-generated method stub
- WindowEvent_2 frame = new WindowEvent_2();
- frame.setTitle("捕获窗口状态事件");
- frame.setVisible(true);
- frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
- frame.setBounds(0, 0, 300, 100);
- }
- }
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