GUI编程学习1

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mob604756e75222 2021-09-28 17:45:00

文章标签 java ide 流式布局 ico 适配器模式 文章分类 代码人生

GUI编程组件和容器

1.Frame

package Color;

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

public class Rgb {
    public static void main(String[] args) {
        Frame frame=new Frame();
        //设置可见性
        frame.setVisible(true);
        //设置大小
        frame.setSize(400,400);
        //设置背景颜色
        frame.setBackground(new Color(105, 58, 138));
        //设置弹出的初始位置
        frame.setLocation(0,300);
        //设置弹窗大小固定
        frame.setResizable(false);
        //设置窗口监听器(适配器)
        frame.addWindowListener(new WindowAdapter() {
            @Override
            public void windowClosing(WindowEvent e) {
                super.windowClosing(e);
                System.exit(0);
            }
        });
    }
}

多个窗体的实现

package Color;

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

public class Fen {
    public static void main(String[] args) {
        MyFrame myFrame1=new MyFrame(100,100,200,200,Color.blue);
        MyFrame myFrame2=new MyFrame(100,100,200,200,Color.blue);
        MyFrame myFrame3=new MyFrame(100,100,200,200,Color.blue);
       
    }

}
class  MyFrame extends Frame{
    static int id=0;
    public MyFrame(int x,int y,int w,int h,Color color){
        super("MyFrame"+(++id));
        setBackground(color);
        setBounds(x,y,w,h);
        setVisible(true);
        addWindowListener(new WindowAdapter() {
            @Override
            public void windowClosing(WindowEvent e) {
                super.windowClosing(e);
                System.exit(0);
            }
        });
    }

}

2.面板Panel

package Color;

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

public class TextPanel {
    public static void main(String[] args) {
        Frame frame=new Frame();
        //布局概念
        Panel panel=new Panel();
        //设置布局
        frame.setLayout(null);
        //坐标
        frame.setBounds(300,300,500,500);
        frame.setBackground(new Color(20,20,220));
        //panel设置坐标
        panel.setBounds(50,50,400,400);
        panel.setBackground(Color.yellow);
        //frame.add(panel)
        frame.add(panel);
        frame.setVisible(true);

        //监听事件,监听窗口关闭事件 system.exit(0);
//        frame.addWindowListener(new WindowListener() {
//            @Override
//            public void windowOpened(WindowEvent e) {
//
//            }
//
//            @Override
//            public void windowClosing(WindowEvent e) {
//
//            }
//
//            @Override
//            public void windowClosed(WindowEvent e) {
//
//            }
//
//            @Override
//            public void windowIconified(WindowEvent e) {
//
//            }
//
//            @Override
//            public void windowDeiconified(WindowEvent e) {
//
//            }
//
//            @Override
//            public void windowActivated(WindowEvent e) {
//
//            }
//
//            @Override
//            public void windowDeactivated(WindowEvent e) {
//
//            }
//        });
        //适配器模式
        frame.addWindowListener(new WindowAdapter() {
            @Override
            public void windowClosing(WindowEvent e) {
                super.windowClosing(e);
                System.exit(0);
            }
        });
    }

}

3.布局管理器

流式布局（FlowLyout)

package Color;

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

public class TextFlowLayout {
    public static void main(String[] args) {
        Frame frame=new Frame();
        //组件-按钮
        Button button1=new Button("button1");
        Button button2=new Button("button2");
        Button button3=new Button("button3");
        //设置为流式布局
        //frame.setLayout(new FlowLayout());
        frame.setLayout(new FlowLayout(FlowLayout.RIGHT));
        frame.setSize(200,200);
        //添加按钮
        frame.add(button1);
        frame.add(button2);
        frame.add(button3);

        frame.setVisible(true);
        frame.addWindowListener(new WindowAdapter() {
            @Override
            public void windowClosing(WindowEvent e) {
                super.windowClosing(e);
                System.exit(0);
            }
        });
    }

}

东西南北中（BorderLayout）

package Color;

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

public class TestBorderLayout {
    public static void main(String[] args) {
        //东西南北中
        Frame frame=new Frame();

        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.add(east,BorderLayout.EAST);
        frame.add(west,BorderLayout.WEST);
        frame.add(south,BorderLayout.SOUTH);
        frame.add(north,BorderLayout.NORTH);
        frame.add(center,BorderLayout.CENTER);

        frame.setSize(300,300);
        frame.setVisible(true);

        frame.addWindowListener(new WindowAdapter() {
            @Override
            public void windowClosing(WindowEvent e) {
                super.windowClosing(e);
                System.exit(0);
            }
        });
    }
}

网格布局（GridLayout）

package Color;

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

public class TestGridLayout {
    public static void main(String[] args) {
        Frame frame=new Frame();


        Button button1=new Button("Btn1");
        Button button2=new Button("Btn2");
        Button button3=new Button("Btn3");
        Button button4=new Button("Btn4");
        Button button5=new Button("Btn5");
        Button button6=new Button("Btn6");

        frame.setLayout(new GridLayout(3,2));
        frame.add(button1);
        frame.add(button2);
        frame.add(button3);
        frame.add(button4);
        frame.add(button5);
        frame.add(button6);

        //Java函数，自动选择最优的布局方式
        frame.pack();
        frame.setVisible(true);

        frame.addWindowListener(new WindowAdapter() {
            @Override
            public void windowClosing(WindowEvent e) {
                super.windowClosing(e);
                System.exit(0);
            }
        });
    }
}

4.课后作业

实现简单的嵌套布局

package Color;

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

public class Study {
    public static void main(String[] args) {
        Frame frame=new Frame();
        frame.setSize(400,400);
        frame.setLocation(300,300);
        frame.setLayout(new GridLayout(2,1));

        Panel panel1=new Panel(new BorderLayout());
        Panel panel2=new Panel(new GridLayout(2,1));
        Panel panel3=new Panel(new BorderLayout());
        Panel panel4=new Panel(new GridLayout(2,2));

        //第一行
        panel1.add(new Button("左1"),BorderLayout.EAST);
        panel1.add(new Button("西1"),BorderLayout.WEST);
        panel2.add(new Button("p2-btn-1"));
        panel2.add(new Button("p2-btn-2"));
        panel1.add(panel2,BorderLayout.CENTER);

        //第二行
        panel3.add(new Button("左2"),BorderLayout.EAST);
        panel3.add(new Button("西2"),BorderLayout.WEST);
        for (int i = 0; i < 4; i++) {
            panel4.add(new Button("p4-btn-"+(i+1)));
        }
        panel3.add(panel4,BorderLayout.CENTER);
        frame.add(panel1);
        frame.add(panel3);

        frame.setVisible(true);
        frame.addWindowListener(new WindowAdapter() {
            @Override
            public void windowClosing(WindowEvent e) {
                super.windowClosing(e);
                System.exit(0);
            }
        });![](https://img2020.cnblogs.com/blog/2398589/202109/2398589-20210928174244965-981925607.png)


    }
}

实现效果：

GUI编程学习1_ico