如何在Blackberry AutoCompleteField中将所选项目作为String？

Question

如何在使用Blackberry自动完成字段时将所选项目作为字符串。我现在能够获得所选的索引。我按照

中的说明覆盖AutoCompleteField类中的onSelect方法

Autocomplete Class Reference API JDE 5.0

以下代码片段 -

AutoCompleteField autoCompleteField = new AutoCompleteField(filterList)
{
     public void onSelect(Object selection, int SELECT_TRACKWHEEL_CLICK) {
         ListField _list = getListField();
         if (_list.getSelectedIndex() > -1) {
             Dialog.alert("You selected: "+_list.getSelectedIndex());
             // get text selected by user and do something...
         }
     }
};

Answer 1

AutoCompleteField的默认实现#onSelect（Object，int）将AutoCompleteField对象的AutoCompleteFieldEditField的文本设置为select参数。所以你可以用那种方式查询String。这是我的意思的片段：

AutoCompleteField autoCompleteField = new AutoCompleteField(filterList)
{
     public void onSelect(Object selection, int type) {
         super.onSelect(selection, type);
         if(selection != null) {
             String selectionAsString = getEditField().getText();
             // Do whatever else you need to do with the String.
         }
     }
};

Answer 2

  /*  
onSelect

    protected void onSelect(Object selection,
                            int type)

    Parameters:
    *selection - The selected item*
    type - The method of selection. This will be one of SELECT_TRACKWHEEL_CLICK SELECT_TRACKBALL_CLICK SELECT_ENTER

*/

BasicFilteredList filterList = new BasicFilteredList();
        String[] days = {"Monday","Tuesday","Wednesday",
                         "Thursday","Friday","Saturday","Sunday"};
        filterList.addDataSet(1,days,"days",BasicFilteredList.COMPARISON_IGNORE_CASE);

        AutoCompleteField autoCompleteField = new AutoCompleteField(filterList){
            protected void onSelect(Object selection, int type) {
                BasicFilteredListResult result = (BasicFilteredListResult) selection;
                Dialog.alert("You selected: "+ result._object);
                super.onSelect(selection, type);
            }
        };
        add(autoCompleteField);