GUI编程

GUI编程

1、简介

Gui的核心技术：Swing AWT

2、AWT

2.1、Awt介绍

1.包含了很多类和接口！GUI！

2.元素：窗口，按钮，文本框

3.java.awt

2.2、组件和容器

2.3、布局管理器

2.4、事件监听

5、输入框TextField监听

6、简易计算器，组合+内部类回顾复习！

2.7、画笔

2.8、鼠标监听

2.9、窗口监听

2.10、键盘监听

3、Swing

3.1、窗口、面板

3.2、弹窗

3.3、标签

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new JLabel("xxx");

图标****ICON

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package com.java.gui.lesson04;

import javax.swing.*;
import java.awt.*;

public class IconDemo extends JFrame implements Icon {
    private int width;
    private int height;

    public IconDemo() {
    }

    public IconDemo(int width, int height) {
        this.width = width;
        this.height = height;
    }

    public void init() {
        IconDemo iconDemo = new IconDemo(15, 15);
        // 图标放在标签，也可以放在按钮上
        JLabel jLabel = new JLabel("iconTest", iconDemo, SwingConstants.CENTER);
        Container container = getContentPane();
        container.add(jLabel);
        this.setVisible(true);
        this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);

    }

    public static void main(String[] args) {
        new IconDemo().init();
    }

    @Override
    public void paintIcon(Component c, Graphics g, int x, int y) {
        g.fillOval(x, y, this.width, this.height);
    }

    @Override
    public int getIconWidth() {
        return this.width;
    }

    @Override
    public int getIconHeight() {
        return this.height;
    }
}

图片****ICON

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package com.java.gui.lesson04;

import javax.swing.*;
import java.awt.*;
import java.net.URL;

public class ImageIconDemo extends JFrame {
    public ImageIconDemo() throws HeadlessException {
        // 获取图片的地址
        JLabel label = new JLabel("ImageIcon");
        URL url = ImageIconDemo.class.getResource("tx.jpg");

        ImageIcon imageIcon = new ImageIcon(url);
        label.setIcon(imageIcon);
        label.setHorizontalAlignment(SwingConstants.CENTER);
        Container container = getContentPane();
        container.add(label);

        setVisible(true);
        setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
    }

    public static void main(String[] args) {
        new ImageIconDemo();
    }
}

3.4、面板

JPanel

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package com.java.gui.lesson05;

import javax.swing.*;
import java.awt.*;

public class JPanelDemo extends JFrame {
    public JPanelDemo() throws HeadlessException {
        Container container = this.getContentPane();
        container.setLayout(new GridLayout(2, 1, 10, 10)); // 后面参数是间距

        JPanel jPanel1 = new JPanel(new GridLayout(1, 3));
        JPanel jPanel2 = new JPanel(new GridLayout(1, 2));
        JPanel jPanel3 = new JPanel(new GridLayout(2, 1));
        JPanel jPanel4 = new JPanel(new GridLayout(3, 2));

        jPanel1.add(new JButton("1"));
        jPanel1.add(new JButton("1"));
        jPanel1.add(new JButton("1"));

        jPanel2.add(new JButton("2"));
        jPanel2.add(new JButton("2"));

        jPanel3.add(new JButton("3"));
        jPanel3.add(new JButton("3"));

        jPanel4.add(new JButton("4"));
        jPanel4.add(new JButton("4"));
        jPanel4.add(new JButton("4"));
        jPanel4.add(new JButton("4"));
        jPanel4.add(new JButton("4"));
        jPanel4.add(new JButton("4"));

        container.add(jPanel1);
        container.add(jPanel2);
        container.add(jPanel3);
        container.add(jPanel4);

        this.setSize(500, 500);
        this.setVisible(true);
        this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
    }

    public static void main(String[] args) {
        new JPanelDemo();
    }
}

JScrollPanel

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package com.java.gui.lesson05;

import javax.swing.*;
import java.awt.*;

public class JScrollDemo extends JFrame {
    public JScrollDemo() throws HeadlessException {
        Container container = this.getContentPane();

        // 文本域
        JTextArea jTextArea = new JTextArea(20, 50);
        jTextArea.setText("默认文本");

        JScrollPane scrollPane = new JScrollPane(jTextArea);

        container.add(scrollPane);

        this.setBounds(100, 100, 300, 350);
        this.setVisible(true);
        this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
    }

    public static void main(String[] args) {
        new JScrollDemo();
    }
}

3.5、按钮

图片按钮

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package com.java.gui.lesson05;

import javax.swing.*;
import java.awt.*;
import java.net.URL;

public class JButtonDemo01 extends JFrame {
    public JButtonDemo01() throws HeadlessException {
        Container container = this.getContentPane();

        // 图标
        URL resource = JButtonDemo01.class.getResource("tx.jpg");
        ImageIcon icon = new ImageIcon(resource);

        // 把图片放在按钮上
        JButton jButton = new JButton();
        jButton.setIcon(icon);
        jButton.setToolTipText("图片按钮");

        container.add(jButton);

        this.setSize(500, 300);
        this.setVisible(true);
        this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);

    }

    public static void main(String[] args) {
        new JScrollDemo();
    }
}

单选按钮

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package com.java.gui.lesson05;

import javax.swing.*;
import java.awt.*;
import java.net.URL;

public class JButtonDemo02 extends JFrame {
    public JButtonDemo02() throws HeadlessException {
        Container container = this.getContentPane();

        // 图标
        URL resource = JButtonDemo02.class.getResource("tx.jpg");
        ImageIcon icon = new ImageIcon(resource);

        // 单选框
        JRadioButton radioButton01 = new JRadioButton("JRadioButton01");
        JRadioButton radioButton02 = new JRadioButton("JRadioButton02");
        JRadioButton radioButton03 = new JRadioButton("JRadioButton03");

        // 由于单选框只能选择一个，分组，一个组中只能选择一个
        ButtonGroup buttonGroup = new ButtonGroup();
        buttonGroup.add(radioButton01);
        buttonGroup.add(radioButton02);
        buttonGroup.add(radioButton03);

        container.add(radioButton01, BorderLayout.CENTER);
        container.add(radioButton02, BorderLayout.NORTH);
        container.add(radioButton03, BorderLayout.SOUTH);

        this.setSize(500, 300);
        this.setVisible(true);
        this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);

    }

    public static void main(String[] args) {
        new JButtonDemo02();
    }
}

复选按钮

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package com.java.gui.lesson05;

import javax.swing.*;
import java.awt.*;
import java.net.URL;

public class JButtonDemo03 extends JFrame {
    public JButtonDemo03() throws HeadlessException {
        Container container = this.getContentPane();

        // 图标
        URL resource = JButtonDemo03.class.getResource("tx.jpg");
        ImageIcon icon = new ImageIcon(resource);

        // 多选框
        JCheckBox jCheckBox01 = new JCheckBox("jCheckBox01");
        JCheckBox jCheckBox02 = new JCheckBox("jCheckBox01");

        container.add(jCheckBox01, BorderLayout.NORTH);
        container.add(jCheckBox02, BorderLayout.SOUTH);

        this.setSize(500, 300);
        this.setVisible(true);
        this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);

    }

    public static void main(String[] args) {
        new JButtonDemo03();
    }
}

3.6、列表

下拉框

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package com.java.gui.lesson06;

import javax.swing.*;
import java.awt.*;

public class TestComboboxDemo01 extends JFrame {
    public TestComboboxDemo01() throws HeadlessException {
        Container container = this.getContentPane();

        JComboBox status = new JComboBox();

        status.addItem(null);
        status.addItem("正在热映");
        status.addItem("已下架");
        status.addItem("即将上映");

        container.add(status);

        this.setSize(500, 350);
        this.setVisible(true);
        this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
    }

    public static void main(String[] args) {
        new TestComboboxDemo01();
    }
}

列表框

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package com.java.gui.lesson06;

import javax.swing.*;
import java.awt.*;
import java.util.Vector;

public class TestComboboxDemo02 extends JFrame {
    public TestComboboxDemo02() throws HeadlessException {
        Container container = this.getContentPane();

        // 生成列表的内容 稀疏数组，压缩数组
//        String[] contents = {"1", "2", "3"};

        Vector contents = new Vector();

        // 列表需要放入内容
        JList jList = new JList(contents);

        contents.add("张三");
        contents.add("李四");
        contents.add("王五");

        container.add(jList);

        this.setSize(500, 350);
        this.setVisible(true);
        this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
    }

    public static void main(String[] args) {
        new TestComboboxDemo02();
    }
}

3.7、文本框

文本框

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package com.java.gui.lesson06;

import javax.swing.*;
import java.awt.*;

public class TestTextDemo01 extends JFrame {
    public TestTextDemo01() throws HeadlessException {
        Container container = this.getContentPane();

        JTextField textFiled1 = new JTextField("hello");
        JTextField textFiled2 = new JTextField("world", 20);

        container.add(textFiled1, BorderLayout.NORTH);
        container.add(textFiled2, BorderLayout.SOUTH);

        this.setSize(500, 350);
        this.setVisible(true);
        this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
    }

    public static void main(String[] args) {
        new TestTextDemo01();
    }
}

密码框

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package com.java.gui.lesson06;

import javax.swing.*;
import java.awt.*;

public class TestTextDemo02 extends JFrame {
    public TestTextDemo02() throws HeadlessException {
        Container container = this.getContentPane();

        JPasswordField passwordField = new JPasswordField();
        passwordField.setEchoChar('*');

        container.add(passwordField);

        this.setSize(500, 350);
        this.setVisible(true);
        this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
    }

    public static void main(String[] args) {
        new TestTextDemo02();
    }
}

文本域

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package com.java.gui.lesson05;

import javax.swing.*;
import java.awt.*;

public class JScrollDemo extends JFrame {
    public JScrollDemo() throws HeadlessException {
        Container container = this.getContentPane();

        // 文本域
        JTextArea jTextArea = new JTextArea(20, 50);
        jTextArea.setText("默认文本");

        JScrollPane scrollPane = new JScrollPane(jTextArea);

        container.add(scrollPane);

        this.setBounds(100, 100, 300, 350);
        this.setVisible(true);
        this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
    }

    public static void main(String[] args) {
        new JScrollDemo();
    }
}