CodenameOne - Multilist is not working in the project

Question

Am facing some problem with populating the Multilist in Codename One. But values are not loaded in the form. It shows blank list with checkbox. What am I doing wrong ?

@Override
    protected boolean initListModelMultiList(List cmp) {
        Vector vec = new Vector();
        Hashtable h = new Hashtable();
        h.put("User1", "List1");
        h.put("User2", "List2");
        h.put("User3", "List3");
        vec.addElement(h);
            cmp.setModel(new DefaultListModel(vec));
        return true;
    }

Below warnings are displayed in the eclipse window. Vector vec = new Vector() is line number 279.

Description Resource Path Location Type Vector is a raw type. References to generic type Vector should be parameterized StateMachine.java /Testing/src/userclasses line 279 Java Problem List is a raw type. References to generic type List should be parameterized StateMachine.java /Testing/src/userclasses line 278 Java Problem Hashtable is a raw type. References to generic type Hashtable should be parameterized StateMachine.java /Testing/src/userclasses line 280 Java Problem Hashtable is a raw type. References to generic type Hashtable should be parameterized StateMachine.java /Testing/src/userclasses line 280 Java Problem Vector is a raw type. References to generic type Vector should be parameterized StateMachine.java /Testing/src/userclasses line 279 Java Problem

Shai Almog Shai Almog · Accepted Answer · 2014-05-20T07:28:24

You need 3 elements in the list not in the vector and the keys for the hashtable need to match the keys defined in the multi-list see http://www.codenameone.com/how-do-i---create-a-list-of-items-the-easy-way.html

Sample code:

Vector v = new Vector();
for(int iter = 0 ; iter < 100 ; iter++) {
   Hashtable h = new Hashtable();
   h.put("Line1", "First line of row: " + iter");
   h.put("Line2", "Second line of row: " + iter");
   v.addElement(h);
}
cmp.setModel(new DefaultListModel(v));

CodenameOne - Multilist is not working in the project

1 Answers