JavaGUI编程

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虽说java在做pc应用并不是很有市场，我那时学的也是VS下用WPF做的，有了WPF那些基础，之后的Android也更容易入手，还是有些帮助的。

GUI编程

组件和容器

Frame

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public class TestFrame2 {
    public static void main(String[] args) {
        MyFrame myFrame1 =new MyFrame(100,100,200,200,Color.blue);
        MyFrame myFrame2 =new MyFrame(200,100,200,200,Color.yellow);
        MyFrame myFrame3 =new MyFrame(300,100,200,200,Color.red);
        MyFrame myFrame4 =new MyFrame(400,100,200,200,Color.gray);
    }
}
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);
    }
}

Panel

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

        frame.setLayout(null);

        frame.setBounds(300,300,500,500);
        frame.setBackground(new Color(40,160,50));

        panel.setBounds(50,50,400,400);
        panel.setBackground(new Color(90,20,150));

        frame.add(panel);

        frame.setVisible(true);

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

布局管理器

流式布局

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

        Button button1 = new Button("button1");
        Button button2 = new Button("button2");
        Button button3 = new Button("button3");

        frame.setLayout(new FlowLayout(FlowLayout.LEFT));

        frame.setSize(200,200);
        frame.add(button1);java
        frame.add(button2);
        frame.add(button3);
        frame.setVisible(true);
    }
}

边界布局

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public class TestBorderLayout {
    public static void main(String[] args) {
        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(500,500);

        frame.setVisible(true);
    }
}

网格布局

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

        Button btn1 = new Button("btn1");
        Button btn2 = new Button("btn2");
        Button btn3 = new Button("btn3");
        Button btn4 = new Button("btn4");
        Button btn5 = new Button("btn5");
        Button btn6 = new Button("btn6");

        frame.setLayout(new GridLayout(3,2));

        frame.add(btn1);
        frame.add(btn2);
        frame.add(btn3);
        frame.add(btn4);
        frame.add(btn5);
        frame.add(btn6);

        frame.pack();

        frame.setVisible(true);
    }
}

事件监听

单个按钮

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public class TestActionEvent {
    public static void main(String[] args) {
        Frame frame=new Frame();
        Button button=new Button();
        MyActionListener myActionListener=new MyActionListener();
        button.addActionListener(myActionListener);

        frame.add(button,BorderLayout.CENTER);
        frame.pack();
        frame.setVisible(true);

        windowClosing(frame);

    }
    private static void windowClosing(Frame frame){
        frame.addWindowListener(new WindowAdapter() {
            @Override
            public void windowClosing(WindowEvent e) {
                System.exit(0);
            }
        });
    }
}
class MyActionListener implements ActionListener{

    @Override
    public void actionPerformed(ActionEvent e) {
        System.out.println("as");
    }
}

多个按钮

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public class TestAction2 {
    public static void main(String[] args) {
        Frame frame=new Frame("开始-停止");
        Button start=new Button("start");
        Button stop=new Button("stop");
        start.setActionCommand("start");
        stop.setActionCommand("stop");
        MyMonitor myMonitor=new MyMonitor();
        start.addActionListener(myMonitor);
        stop.addActionListener(myMonitor);


        frame.add(start,BorderLayout.NORTH);
        frame.add(stop,BorderLayout.SOUTH);
        frame.pack();
        frame.setVisible(true);
    }
}
class MyMonitor implements ActionListener{
    @Override
    public void actionPerformed(ActionEvent e) {
        System.out.println("点击，msg=>"+e.getActionCommand());
    }
}

文本框

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public class TestText0 {
    public static void main(String[] args) {
        new MyFrame2();
    }
}

class MyFrame2 extends Frame {
    public MyFrame2() {
        TextField textField = new TextField();
        add(textField);

        MyActionListener2 myActionListener = new MyActionListener2();
        textField.addActionListener(myActionListener);

        //设置替换编码
        textField.setEchoChar('*');

        pack();
        setVisible(true);
    }
}

class MyActionListener2 implements ActionListener {

    @Override
    public void actionPerformed(ActionEvent e) {
        TextField textField = (TextField) e.getSource();
        System.out.println(textField.getText());
        textField.setText("");
    }
}

简易计算器

组合

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public class TestCalc {
    public static void main(String[] args) {
        new Calculator().loadFrame();
    }
}

class Calculator extends Frame {
    TextField num1,num2,num3;

    public void loadFrame(){
        num1 = new TextField("10");
        num2 = new TextField("10");
        num3 = new TextField("20");

        Button btn = new Button("=");
        Label label = new Label("+");

        btn.addActionListener(new MyCalcActionListener(this));

        setLayout(new FlowLayout());
        add(num1);
        add(label);
        add(num2);
        add(btn);
        add(num3);
        pack();
        setVisible(true);
    }
}

class MyCalcActionListener implements ActionListener {
    Calculator calculator=null;

    public MyCalcActionListener(Calculator calculator) {
        this.calculator=calculator;
    }

    @Override
    public void actionPerformed(ActionEvent e) {
       int n1= Integer.parseInt(calculator.num1.getText());
       int n2= Integer.parseInt(calculator.num2.getText());

       calculator.num3.setText(""+(n1+n2));

       calculator.num1.setText("");
       calculator.num2.setText("");
    }
}

内部类

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public class TestCalc {
    public static void main(String[] args) {
        new Calculator().loadFrame();
    }
}

class Calculator extends Frame {
    TextField num1,num2,num3;

    public void loadFrame(){
        num1 = new TextField("10");
        num2 = new TextField("10");
        num3 = new TextField("20");

        Button btn = new Button("=");
        Label label = new Label("+");

        btn.addActionListener(new MyCalcActionListener());

        setLayout(new FlowLayout());
        add(num1);
        add(label);
        add(num2);
        add(btn);
        add(num3);
        pack();
        setVisible(true);
    }
    public class MyCalcActionListener implements ActionListener {
        @Override
        public void actionPerformed(ActionEvent e) {
            int n1= Integer.parseInt(num1.getText());
            int n2= Integer.parseInt(num2.getText());

            num3.setText(""+(n1+n2));

            num1.setText("");
            num2.setText("");
        }
    }
}

画笔Paint

鼠标监听

窗口监听

键盘监听

Swing

参考

https://www.bilibili.com/video/BV1DJ411B75F

总结

前面很多都没去总结，我是觉得这方面了解就好，不想深入钻研。