麻烦高手帮我解决一下listbox不显示的问题
/* Copyright (c) 2008, Nokia. All rights reserved */
#include "SkyDoucmentAppView5.h"
#include <eikenv.h>
#include <Skydoucment.rsg>
#include <gdi.h>
#include <e32std.h>
#include <avkon.hrh>
#include <aknutils.h>
#include <aknlists.h>
#include <barsread.h>
CSkydoucmentAppView5* CSkydoucmentAppView5::NewL(const TRect& aRect)
{
CSkydoucmentAppView5* self = NewLC(aRect);
CleanupStack::Pop(self);
return self;
}
CSkydoucmentAppView5* CSkydoucmentAppView5::NewLC(const TRect& aRect)
{
CSkydoucmentAppView5* self = new (ELeave) CSkydoucmentAppView5;
CleanupStack::PushL(self);
self->ConstructL(aRect);
return self;
}
void CSkydoucmentAppView5::ConstructL(const TRect& aRect)
{
CreateWindowL();
CEikColumnListBox* iColListBox;
iColListBox = new (ELeave) CAknSingleStyleListBox();
iColListBox->SetContainerWindowL( *this );
//从资源文件中生成LISTBOX
TResourceReader reader;
CEikonEnv::Static()->CreateResourceReaderLC( reader, R_TEXT_SINGLE);
iColListBox->ConstructFromResourceL( reader );
//设置SCROLLBAR
iColListBox->CreateScrollBarFrameL( ETrue );
iColListBox->ScrollBarFrame()->SetScrollBarVisibilityL(
CEikScrollBarFrame::EOff, CEikScrollBarFrame::EAuto );
//适合窗口大小
iColListBox->SetRect(Rect());
//激活
iColListBox->ActivateL();
CleanupStack::PopAndDestroy();
SetRect(aRect);
ActivateL();
}
CSkydoucmentAppView5::CSkydoucmentAppView5()
{
// Add any construction code that can not leave here
}
CSkydoucmentAppView5::~CSkydoucmentAppView5()
{
// Add any destruction code here
}
void CSkydoucmentAppView5::Draw(const TRect& /*aRect*/) const
{
// Get the standard graphics context
CWindowGc& gc = SystemGc();
// Gets the control's extent
gc.Clear(Rect());
}
在窗口中不显示listbox
RESOURCE LISTBOX r_text_single
{
array_id = r_array_single;
flags = EAknListBoxSelectionList;
}
RESOURCE ARRAY r_array_single
{
items =
{
LBUF
{
txt = " \taaaaaa";
}
};
}
[解决办法]
你的CSkydoucmentAppView5从什么继承的？一般情况下建议将控件放在Continer里，并要注意如下小例中的两个函数：
TInt CContainerContainer::CountComponentControls() const
{
return 1; // return number of controls inside this container
// (i.e. the list)
}
and
CCoeControl* CContainerContainer::ComponentControl(TInt aIndex) const
{
switch ( aIndex )
{
case 0:
return iListBox; // return a pointer to the listbox
default:
return NULL;
}
}
