Source code:
com.dedetok.tutorialcustomjlist.Person.java
package com.dedetok.tutorialcustomjlist;
public class Person {
int id;
String name;
public Person(int id, String name) {
this.id = id;
this.name = name;
}
}
com.dedetok.tutorialcustomjlist.MyListModel.java
package com.dedetok.tutorialcustomjlist;
import java.util.Vector;
import javax.swing.ListModel;
import javax.swing.event.ListDataListener;
public class MyListModel implements ListModel<String> {
Vector<Person> myData = new Vector<>();
public MyListModel(Vector<Person> myData) {
this.myData = myData;
}
@Override
public int getSize() {
return myData.size();
}
// to render in JList
@Override
public String getElementAt(int index) {
Person tmpP = myData.get(index);
return tmpP.name;
}
@Override
public void addListDataListener(ListDataListener l) {
// TODO Auto-generated method stub
}
@Override
public void removeListDataListener(ListDataListener l) {
// TODO Auto-generated method stub
}
}
com.dedetok.tutorialcustomjlist.MyCBRenderer.java
package com.dedetok.tutorialcustomjlist;
import java.awt.Component;
import javax.swing.JList;
import javax.swing.plaf.basic.BasicComboBoxRenderer;
public class MyCBRenderer extends BasicComboBoxRenderer {
// to render to JComboBox
@Override
public Component getListCellRendererComponent(JList<?> list, Object value, int index, boolean isSelected,
boolean cellHasFocus) {
// TODO Auto-generated method stub
super.getListCellRendererComponent(list, value, index, isSelected,
cellHasFocus);
Person mPerson = (Person) value;
setText(mPerson.name);
return this;
}
}
com.dedetok.tutorialcustomjlist.TutorialJList.java
package com.dedetok.tutorialcustomjlist;
import java.awt.EventQueue;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Vector;
import javax.swing.JFrame;
import javax.swing.JList;
import javax.swing.SpringLayout;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
import javax.swing.JComboBox;
public class TutorialJList {
private JFrame frame;
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
TutorialJList window = new TutorialJList();
window.frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the application.
*/
public TutorialJList() {
initialize();
}
/**
* Initialize the contents of the frame.
*/
private void initialize() {
frame = new JFrame();
frame.setBounds(100, 100, 450, 300);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
SpringLayout springLayout = new SpringLayout();
frame.getContentPane().setLayout(springLayout);
Vector<Person> myList = new Vector<>();
Person tmp = new Person(1,"one");
myList.add(tmp);
tmp = new Person(2,"two");
myList.add(tmp);
tmp = new Person(3,"Three");
myList.add(tmp);
MyListModel myDataList = new MyListModel(myList); // implements ListModel<String>
JList<String> list = new JList<>(myDataList);
list.addListSelectionListener(new ListSelectionListener( ) {
@Override
public void valueChanged(ListSelectionEvent e) {
// TODO Auto-generated method stub
if (!e.getValueIsAdjusting()) {
int selectInt = list.getSelectedIndex();
Person tmpP = myDataList.myData.get(selectInt);
System.out.println(tmpP.id+" "+tmpP.name);
}
}
});
springLayout.putConstraint(SpringLayout.NORTH, list, 0, SpringLayout.NORTH, frame.getContentPane());
springLayout.putConstraint(SpringLayout.WEST, list, 0, SpringLayout.WEST, frame.getContentPane());
springLayout.putConstraint(SpringLayout.EAST, list, 436, SpringLayout.WEST, frame.getContentPane());
frame.getContentPane().add(list);
JComboBox<Person> comboBox = new JComboBox<>(myList);
MyCBRenderer myCBRenderer = new MyCBRenderer();
comboBox.setRenderer(myCBRenderer);
ActionListener myAL = new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
Person myPerson = (Person) comboBox.getSelectedItem();
System.out.println(myPerson.id+" "+myPerson.name);
}
};
comboBox.addActionListener(myAL);
springLayout.putConstraint(SpringLayout.WEST, comboBox, 0, SpringLayout.WEST, list);
springLayout.putConstraint(SpringLayout.SOUTH, comboBox, 0, SpringLayout.SOUTH, frame.getContentPane());
frame.getContentPane().add(comboBox);
}
}
