Categories: Symbian C++ | UI | Code Examples

This page was last modified 23:43, 2 January 2008.

From Forum Nokia Wiki

The SelectSomethingL() method illustrates how to use Popup lists for displaying data or for showing a selection to the user. In this example five constant strings are added to the selection but you could also make this part dynamic.

With this example the Popup list is constructed as CAknSinglePopupMenuStyleListBox, but you could also use following types of Popuplists:

• CAknSingleHeadingPopupMenuStyleListBox
• CAknSingle2GraphicPopupMenuStyleListBox
• CAknSingleGraphicPopupMenuStyleListBox
• CAknSingleGraphicHeadingPopupMenuStyleListBox
• CAknSingleGraphicBtPopupMenuStyleListBox
• CAknDoubleGraphicPopupMenuStyleListBox
• CAknDouble2PopupMenuStyleListBox
• CAknDoublePopupMenuStyleListBox
• CAknDoubleLargeGraphicPopupMenuStyleListBox

Note that the format for the item text string depends on the Popup list type. If you change the Popup list type you also need to modify the item text string format accordingly.

_LIT(KtxPopUpTitle			,"Select item");
 
_LIT(KtxPopUpItem1			,"Item 1");
_LIT(KtxPopUpItem2			,"Item 2");
_LIT(KtxPopUpItem3			,"Item 3");
_LIT(KtxPopUpItem4			,"Item 4");
_LIT(KtxPopUpItem5			,"Item 5");
 
void SelectSomethingL(TDes& aSelected)
{
    CAknSinglePopupMenuStyleListBox* list =
new(ELeave)CAknSinglePopupMenuStyleListBox;
    CleanupStack::PushL(list);
 
    CAknPopupList* popupList = CAknPopupList::NewL(list,
R_AVKON_SOFTKEYS_OK_BACK, AknPopupLayouts::EMenuWindow);  
    CleanupStack::PushL(popupList);
 
    list->ConstructL(popupList, 0);
    list->CreateScrollBarFrameL(ETrue);
    list->ScrollBarFrame()->SetScrollBarVisibilityL(CEikScrollBarFrame::EOff,
CEikScrollBarFrame::EAuto);
 
    CDesCArrayFlat* ItemArray = new(ELeave)CDesCArrayFlat(5);
    CleanupStack::PushL(ItemArray);
 
    // add the item adding in here..
    ItemArray->AppendL(KtxPopUpItem1); 
    ItemArray->AppendL(KtxPopUpItem2); 
    ItemArray->AppendL(KtxPopUpItem3); 
    ItemArray->AppendL(KtxPopUpItem4); 
    ItemArray->AppendL(KtxPopUpItem5); 
 
    CleanupStack::Pop();            //ItemArray
    list->Model()->SetItemTextArray(ItemArray);
    list->Model()->SetOwnershipType(ELbmOwnsItemArray);
 
    popupList->SetTitleL(KtxPopUpTitle);
 
    // Show popup list and then show return value.
    TInt popupOk = popupList->ExecuteLD();
    if (popupOk)
    {
    	TInt Sel = list->CurrentItemIndex();
    	if (Sel >= 0 && Sel < ItemArray->MdcaCount())
    	{
    	    aSelected.Copy(ItemArray->MdcaPoint(Sel));
    	}
    }
	
    CleanupStack::Pop();            // popuplist
    CleanupStack::PopAndDestroy(1); // list
}