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java SWT怎么在母面板中获取子控件及其值

热度:83   发布时间:2016-04-24 00:59:38.0
java SWT如何在母面板中获取子控件及其值
在一个tabFolder中,有一个tabitem,在tabitem之上放一个composite,然后再在compsite上放了许多个Text控件,
现在我点击一个确定按钮,获取tabFolder当前选中项中的控件,也就是compsite上的text控件,依次获取text中的值,
求一个简单的例子( ⊙ o ⊙ )啊!

------解决方案--------------------
Java code
import java.awt.Component;import java.awt.FlowLayout;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import javax.swing.JButton;import javax.swing.JFrame;import javax.swing.JTextField;public class ChildrenTest extends JFrame{        JTextField text1, text2, text3, text4;    JButton btn1, btn2;    public ChildrenTest(){                this.setSize(250,500);        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);        this.setLocationRelativeTo(null);        this.setLayout(new FlowLayout());        text1 = new JTextField(20);        text2 = new JTextField(20);        text3 = new JTextField(20);        text4 = new JTextField(20);        btn1 = new JButton("确定");                btn1.addActionListener(new ActionListener() {                        @Override            public void actionPerformed(ActionEvent e) {                Component[] components = btn1.getParent().getComponents();                for(Component c: components){                    if(c instanceof JTextField){                        JTextField textField = (JTextField)c;                        System.out.println(textField.getText());                    }                }            }        });        btn2 = new JButton("清空");                this.add(text1);        this.add(text2);        this.add(text3);        this.add(text4);        this.add(btn1);        this.add(btn2);            }        public static void main(String[] args) {        ChildrenTest test = new ChildrenTest();        test.setVisible(true);    }}
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