GUI学习之窗口监听

写小游戏里面窗口监听的应用比较少

package lesson3;

import java.awt.*;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

import static com.sun.glass.ui.Cursor.setVisible;

public class TestWindow {
    public static void main(String[] args) {

    }
}
class WindowFrame extends Frame {
    public WindowFrame(){
        setBackground(Color.pink);
        setBounds(100,100,200,200);
            setVisible(true);
            //addWindowListener(new MyWindowListener());
            this.addWindowListener(
                    //匿名内部类
                    new WindowAdapter() {
                        @Override
                        public void windowClosing(WindowEvent e) {
                            System.out.println("你点击了×");
                        }
                    }
            )

        }
    }
class MyWindowListener extends WindowAdapter{
    @Override
    public void windowClosing(WindowEvent e) {
        setVisible(false);//隐藏窗口，通过按钮，隐藏窗口
        System.exit(0);//0正常退出，非正常退出是1
}
}
}

重新写下方法

package lesson3;

import java.awt.*;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;


public class TestWindow {
    public static void main(String[] args) {
        new WindowFrame();
    }
}
class WindowFrame extends Frame {
    public WindowFrame(){
        setBackground(Color.pink);
        setBounds(100,100,200,200);
            setVisible(true);
            //addWindowListener(new MyWindowListener());
            this.addWindowListener(
                    //匿名内部类
                    new WindowAdapter() {
                        @Override
                        public void windowOpened(WindowEvent e) {
                            System.out.println("opened");
                        }

                        @Override
                        public void windowClosing(WindowEvent e) {
                            System.out.println("closing");
                        }

                        @Override
                        public void windowClosed(WindowEvent e) {
                            System.out.println("closed");
                            System.exit(0);
                        }
                            //窗口激活
                        @Override
                        public void windowActivated(WindowEvent e) {
                            WindowFrame source=(WindowFrame)e.getSource();
                            source.setTitle("被激活了");
                            System.out.println("Activated");
                        }
                      @Override
                        public void windowDeactivated(WindowEvent e) {
                            super.windowDeactivated(e);
                        }
                     @Override
                        public void windowIconified(WindowEvent e) {
                            super.windowIconified(e);
                        }

                        @Override
                        public void windowDeiconified(WindowEvent e) {
                            super.windowDeiconified(e);
                        }

                        @Override
                        public void windowStateChanged(WindowEvent e) {
                            super.windowStateChanged(e);
                //状态改变，从激活到另外的一个状态
                        }

                       @Override
                        public void windowGainedFocus(WindowEvent e) {
                            super.windowGainedFocus(e);
                        }

                        @Override
                        public void windowLostFocus(WindowEvent e) {
                            super.windowLostFocus(e);
                        }

                    }
            );

        }
}

内部类，打开窗口，窗口激活，关闭窗口，窗口输出closing，打开窗口之后，窗口被激活，可以重置窗口名称