GUI编程学习

1、简介

Gui的核心技术：Swing、AWT

2、AWT

包含了很多类和接口！GUI：图形用户界面编程

元素：创空、按钮、文本框

Frame

单个窗口

package com.yl;
 
import java.awt.*;
 
public class TestFrame {
    public static void main(String[] args) {
        Frame frame = new Frame("我妹最漂亮");
        //设置可见性
        frame.setVisible(true);
        //设置窗口大小
        frame.setSize(666,222);
        //设置背景颜色
        frame.setBackground(new Color(191, 183, 27));
        //设置弹出的初始位置
        frame.setLocation(222,222);
        //设置大小固定
        frame.setResizable(false);
    }
}

  

停止java运行才可以关闭窗口

 多个窗口

package com.yl;
 
import java.awt.*;
 
public class TestFrame2 {
    public static void main(String[] args) {
        MyFrame frame = new MyFrame(100, 100, 500, 500, Color.yellow);
        MyFrame frame2 = new MyFrame(150, 150, 500, 500, Color.red);
        MyFrame frame3 = new MyFrame(200, 200, 500, 500, Color.pink);
        MyFrame frame4 = new MyFrame(250, 250, 500, 500, Color.orange);
    }
 
}
class MyFrame extends Frame{
    static int id=0;//可能存在多个窗口我们需要一个计数器
    public MyFrame(int x,int y,int w,int h,Color color){
        super("Myframe+"+(++id));
        setBackground(color);
        setBounds(x,y,w,h);
        setVisible(true);
    }
}

 

Panel

解决关闭窗口问题

package com.yl;
 
import java.awt.*;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
 
//Panel可以看成是一个空间，但是不能单独存在
public class TestPanel {
    public static void main(String[] args) {
        Frame frame = new Frame();
        //布局的概念
        Panel panel  = new Panel();
        //设置布局
        frame.setLayout(null);
        //坐标
        frame.setBounds(300,300,500,500);
        frame.setBackground(new Color(203, 243, 29, 255));
        //Panel设置坐标，相对于frame
        panel.setBounds(50,50,400,400);
        panel.setBackground(new Color(207, 25, 25));
        //frame.add(panel) Container extends Component, Panel extends Container
        frame.add(panel);
        frame.setVisible(true);//设置可见性
        //监听窗口关闭时间
        frame.addWindowListener(new WindowAdapter() {
            //结束程序
            @Override
            public void windowClosing(WindowEvent e) {
                System.exit(0);
            }
        });
    }
}

3、布局管理器

•  流式布局

package com.yl;
 
import java.awt.*;
 
public class TestLowLayout {
    public static void main(String[] args) {
        Frame frame = new Frame();
        //组件--按钮
        Button button = new Button("my");
        Button button2 = new Button("sister");
        Button button3 = new Button("beautiful");
        //设置为流式布局
       // frame.setLayout(new FlowLayout());//默认居中
//        frame.setLayout(new FlowLayout(FlowLayout.LEFT));
        frame.setLayout(new FlowLayout(FlowLayout.RIGHT));
        frame.setSize(222,222);
        //把按钮加上去
        frame.add(button);
        frame.add(button2);
        frame.add(button3);
        frame.setVisible(true);
    }
}

  

• 东西南北中

package com.yl;
 
import java.awt.*;
 
public class TestBodyLayout {
    public static void main(String[] args) {
        Frame frame = new Frame("TestBodyLayout");
        Button east = new Button("East");
        Button west = new Button("West");
        Button south = new Button("South");
        Button north = new Button("North");
        Button center = new Button("Center");
        frame.setSize(666, 666);
        frame.setVisible(true);
        frame.add(east, BorderLayout.EAST);
        frame.add(west, BorderLayout.WEST);
        frame.add(south, BorderLayout.SOUTH);
        frame.add(north, BorderLayout.NORTH);
        frame.add(center, BorderLayout.CENTER);
    }
}

  

• 表格布局

package com.yl;
 
import java.awt.*;
 
public class TestGrid {
    public static void main(String[] args) {
        Frame frame = new Frame();
        Button button1 = new Button("1");
        Button button2 = new Button("2");
        Button button3 = new Button("3");
        Button button4 = new Button("4");
        Button button5 = new Button("5");
        Button button6 = new Button("6");
        frame.setLayout(new GridLayout(3,2));
        frame.add(button1);
        frame.add(button2);
        frame.add(button3);
        frame.add(button4);
        frame.add(button5);
        frame.add(button6);
        frame.pack();//自动填充，不用setsize
        frame.setVisible(true);
    }
}

 

练习

 

package com.yl;
 
import java.awt.*;
 
public class Test {
    public static void main(String[] args) {
        Frame frame = new Frame();
        Panel east11 = new Panel();
        Panel center12 = new Panel();
        Panel center11 = new Panel();
        Panel center22 = new Panel();
        Panel west11 = new Panel();
        Button east = new Button("East");
        Button east2 = new Button("East");
        east11.setBackground(Color.red);
        east11.setLayout(new GridLayout(2,1));
        east11.add(east);
        east11.add(east2);
        Button west = new Button("West");
        Button west2 = new Button("West");
        west11.setBackground(Color.green);
        west11.setLayout(new GridLayout(2,1));
        west11.add(west);
        west11.add(west2);
        Button center1 = new Button("Center");
        Button center2 = new Button("Center");
        Button center3 = new Button("Center");
        Button center4 = new Button("Center");
        Button center5 = new Button("Center");
        Button center6 = new Button("Center");
        center12.setLayout(new GridLayout(2,1));
        center12.add(center11);
        center11.setLayout(new GridLayout(2,1));
        center11.add(center1);
        center11.add(center2);
        center12.add(center22);
        center22.setLayout(new GridLayout(2,2));
        center22.add(center3);
        center22.add(center4);
        center22.add(center5);
        center22.add(center6);
        frame.setLayout(new GridLayout(1,3));
        frame.add(east11);
        frame.add(center12);
        frame.add(west11);
        frame.pack();
        frame.setVisible(true);
        frame.addWindowListener(new WindowAdapter() {
            @Override
            public void windowClosing(WindowEvent e) {
                System.exit(0);
            }
        });
    }
}

  

package com.yl;
 
import java.awt.*;
 
public class Test1 {
    public static void main(String[] args) {
        Frame frame = new Frame();
        frame.setLayout(new GridLayout(2,1));
        frame.setSize(666,666);
        frame.setLocation(222,222);
        frame.setVisible(true);
        frame.setLayout(new GridLayout(2,1));
        Panel p1 = new Panel(new BorderLayout());
        Panel p2 = new Panel(new GridLayout(2,1));
        Panel p3 = new Panel(new BorderLayout());
        Panel p4 = new Panel(new GridLayout(2,2));
        p1.add(new Button("east1"),BorderLayout.EAST);
        p1.ad