Codenameone列表添加功能

1 回答

• 1

  这是一个简短的例子：

  Form form = new Form("List Example");  //Create Form
  
  Button button = new Button("PRESS ME"); //Create Button
  form.add(button);  // add button to Form
  
  List myList = new List<>(); //Create List
  form.add(myList);  //add List to Form
  
  // Create an Array of Elements 
  ArrayList<String> arrayList = new ArrayList<>();
  for (int i = 0; i < 20; i++)
    {
      arrayList.add("Elemnt " + i);
    }
  
  // Create ListModel
  DefaultListModel<String> listModel = new DefaultListModel<>(arrayList);
  
  // Add Button ActionListner
  button.addActionListener(new ActionListener<ActionEvent>()
  {
    public void actionPerformed(ActionEvent arg0)
    {
      myList.setModel(listModel);  //add ListModel to List
      form.repaint(); 
    }
  });
  
  form.show();
  

  回复于 2024-04-28T05:20:10+08:00