note1

JFrame

http://docs.oracle.com/javase/8/docs/api/

常用屬性

• •  this.setAlwaysOnTop(true);

  •  this.setAutoRequestFocus(true);

  •  this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

  •  this.setResizable(true);

  •  this.setEnabled(true);

  •  this.setSize(100,200);

  • this.setOpacity((float)1.0);// 當前窗體被系統修飾以後，只能opacity給1.0
    this.setUndecorated(true);//當前窗體不被系統裝飾, 最小化，最大化，關閉按鈕都沒有
                                //要自己添加按鈕進行關閉等操作

  • this.setType(Type.POPUP);
    //        this.setType(Type.NORMAL);
    //        this.setType(Type.UTILITY);  //根據type，系統修飾的方式略有不同

  • setVisible(true)

  • JPanel panel1 = new JPanel();
    this.setContentPane(panel1); 要給JFrame設置一個contentPane
    

    
    

JPanel

Container中可以放控件，或者其他容器。

常用屬性

• JPanel panel1 = new JPanel();

• panel1.setBackground(Color.BLUE);

• panel1.setLayout(new FlowLayout());  //JPanel default layout ==> borderlayout

• panel1.setBorder(new TitledBorder("panel1"));

  
  

其他Containter

JLabel

常用屬性

• JLabel lbl1 = new JLabel();

•  lbl1.setFont(new Font("MS Mincho", Font.BOLD, 14));

•  lbl1.setText("lbl1");

•  lbl1.setForeground(Color.BLACK);

•  lbl1.setIcon(new ImageIcon(this.getClass().getResource("icon1.png")));

• 
  

•  lbl1.setToolTipText("tool tip");

• 文本對齊方式：
  

•  lbl1.setHorizontalAlignment(SwingConstants.CENTER);

•  lbl1.setVerticalAlignment(SwingConstants.TOP);

JButton

常用屬性

JButton btn1 = new JButton("btn1");
        btn1.addMouseListener(new MouseAdapter() {
            @Override
            public void mouseClicked(MouseEvent e) {
                System.out.println("1");
            }
        });

JTextField 單行文本框

常用屬性

TextField jtf1 = new JTextField();
        jtf1.setEnabled(true);
        jtf1.setEditable(false);
        jtf1.setText("du text");

JTextArea 多行文本框

常用屬性

JTextArea ta = new JTextArea();
ta.setRows(5);
ta.setColumns(10);
ta.setLineWrap(true);// default : false

JScrollPane

把ta放在JScrollPane中的viewportview中，然後把JScrollPane放在panel中

JScrollPane scrollPane = new JScrollPane();
        scrollPane.setViewportView(ta);
        panel1.add(scrollPane);

JRadioButton,JCheckBox

把rb加到buttongroup中，但是jpanel中加的是rb

JRadioButton rb1 = new JRadioButton("rb1");
rb1.setSelected(true);
System.out.println(rb1.isSelected());
JRadioButton rb2 = new JRadioButton("rb2");
JRadioButton rb3 = new JRadioButton();
rb3.setText("rb3");
ButtonGroup btnGr = new ButtonGroup();
btnGr.add(rb1);
btnGr.add(rb2);
btnGr.add(rb3);
panel1.add(rb1);
panel1.add(rb2);
panel1.add(rb3);

JList

給List設置model數據

lstName = new JList<String>();
lstName.setModel(new AbstractListModel<String>() {
    private String[] values = new String[]{"java", "c++", "c#"};
    @Override
    public int getSize() {
        return values.length;
    }
    @Override
    public String getElementAt(int index) {
        return values[index];
    }
});

常用方法：

lstName.getSelectedValue();
lstName.getSelectedIndex();
lstName.getSelectedIndices();
lstName.getSelectedValuesList();
lstName.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);

• 如果不選擇任何項，selectedIndex是-1.
• 默認selectionmode是可選多行
  

JComboBox

String[] values = new String[]{"java", "c++", "c#"};
comboCours = new JComboBox<String>(values);
comboCours.addItemListener(new ItemListener() {
    @Override
    public void <span style="background-color: rgb(255, 255, 102);">itemStateChanged</span>(ItemEvent e) {
        System.out.println(comboCours.getSelectedItem());
    }
});
panel1.add(comboCours);

JProgressBar

progressBar = new JProgressBar();
progressBar.setMinimum(0);
progressBar.setMaximum(100);

用swingworker多線程控制JprogressBar：

panel1.add(progressBar);
        JButton btnPB = new JButton("add");
        btnPB.addMouseListener(new MouseAdapter() {
            @Override
            public void mouseClicked(MouseEvent e) {
                new SwingWorker<String,Integer>(){

                    @Override
                    protected String doInBackground() throws Exception {
                        for (int i = 0; i <=10; i++ ) {
                            Thread.sleep(1000);//sleep for 1s
                            publish(i*10);
                        }
                        return null;
                    }

                    @Override
                    protected void process(List<Integer> chunks) {
                        for(Integer integer : chunks){
                            progressBar.setValue(integer);
                        }
                    }
                }.execute();
            }
        });
        panel1.add(btnPB);

JSpinner數字調節控件

model是數字：

JSpinner spinner1 = new JSpinner();
spinner1.setModel(new SpinnerNumberModel(60,0,100,1));
                    //int value, int minimum, int maximum, int stepSize
                    //double, double,double,double
panel1.add(spinner1);

int num = Integer.parseInt(spinner1.getValue().toString());
System.out.println(num);

model是日期：

JSpinner spinner2 = new JSpinner();
spinner2.setModel(new SpinnerDateModel());
panel1.add(spinner2);