[fengwangjiang]

你好，有点问题想请教！
我用view结构写了一个需要显示listbox的程序，
但是一启动程序的时候就报告出现异常 （可以看见程序图标）：
“应用程序发生异常unknown software exception (0x80000003),位置在0x6001bb22。
在确定上单击，中止应用程序
在取消上单击，调试应用程序”

这是什么訽因？代码不是很难的，帮我看看好吗？
我的主要代码:

appui创建了一个CMainMenuView(CMainMenuView中包含MainMenuContainer* iContainer),CMainMenuContainer中包含 CAknSingleStyleListBox* iMainMenuListBox;
代码如下：
void CNavboyAppUi::ConstructL()
{
BaseConstructL();
CMainMenuView* MainMenuView = new (ELeave) CMainMenuView;

CleanupStack::PushL( MainMenuView );
MainMenuView->ConstructL();
AddViewL( MainMenuView ); // transfer ownership to CAknViewAppUi
CleanupStack::Pop(); // MainMenuView

CCityMapView* CityMapView = new (ELeave) CCityMapView;

CleanupStack::PushL( CityMapView );
CityMapView->ConstructL();
AddViewL( CityMapView ); // transfer ownership to CAknViewAppUi
CleanupStack::Pop(); // CityMapView

SetDefaultViewL(*MainMenuView);

}

void CMainMenuView::ConstructL()
{
BaseConstructL( R_NAVBOY_MAINMENUVIEW );

//construct the poiner iContainer
iContainer = new (ELeave) CMainMenuContainer;
CleanupStack::PushL( iContainer );
iContainer->SetMopParent(this);
iContainer->ConstructL( ClientRect( ) );

AppUi( )->AddToStackL( *this, iContainer );
//CleanupStack::Pop( iContainer );
}

void CMainMenuContainer::ConstructL(const TRect& aRect)
{
CreateWindowL();

iMainMenuListBox = new (ELeave) CAknSingleStyleListBox( );
CleanupStack::PushL( iMainMenuListBox );
//创建LISTBOX类型
iMainMenuListBox->ConstructL( this, EAknListBoxSelectionList);
//创建SCROLLBAR
iMainMenuListBox->CreateScrollBarFrameL(ETrue);
iMainMenuListBox->ScrollBarFrame()->SetScrollBarVisibilityL(CEikScrollBarFrame::EOff, CEikScrollBarFrame::EAuto);
//从资源中创建LISTBOX
TResourceReader reader;
iEikonEnv->CreateResourceReaderLC( reader, R_NAVBOY_MAINMENU_SINGLE );
iMainMenuListBox->ConstructFromResourceL( reader );
CleanupStack::PopAndDestroy(); // resource stuffs.
//设置容器窗口
iMainMenuListBox->SetContainerWindowL( *this );
//设置OBSERVER
iMainMenuListBox->SetObserver( this );
//设置大小尺寸，位置
iMainMenuListBox->SetRect( aRect );
//iMainMenuListBox->SetExtent( TPoint(0,0)

//SetRect(aRect);
ActivateL();
}

我选择的是支持创建document file的view,我把上面出现的函数中的创建iContainer和i
MainMenuListBox去掉，还是出现同样的异常问题.
感谢！

[liuxg]

Hi,

Since I do not have whole view of your code (class inheritance etc), I do not quite understand how your code is contructed!

I suggest you to read the document located at the following location:

\Symbian\6.1\Series60\Series60Doc\Application framework handbook.pdf

It will tell you the application architectures:

1) Traditional Symbian OS Control Architecture
2) Dialog Based Architecture
3) View Architecture

From your code, I can see that your architecture does fall into any of them. Maybe this produces the problem.

When you use the VC++ wizard, you can easily generate the template for all these sample code. Please have a try.

For your information, examples can be found for them

1) Chinese Display Example Application v1.0 for the Series 60 Platform
http://www.forum.nokia.com/files/nds...3,2905,00.html

2) You can easily generate using VC++ wizard

3) \Symbian\6.1\Series60\Series60Ex\MultiViews


Hope this helps!

Liuxg
Forum Nokia

[fengwangjiang]

谢谢你每次的热心指点，我看过关于framework的文档，
我的代码也是用VC++的WIZARD创建出来的。
但是我就是找不到错误所在的地方，我仔细地检查过，还是看不出来。
我也求助其他人，但是没有结果。
再帮我看看好吗？这是我的类的主要接口，再次感谢你！
class CNavboyApp : public CAknApplication
{

public:
private:
CApaDocument* CreateDocumentL();
TUid AppDllUid() const;
};

class CNavboyDocument : public CAknDocument
{
public:
static CNavboyDocument* NewL(CEikApplication& aApp);
virtual ~CNavboyDocument();
public: // from CEikDocument
CFileStore* OpenFileL(TBool aDoOpen,const TDesC& aFilename,RFs& aFs);

private:
CNavboyDocument(CEikApplication& aApp);
void ConstructL();

private:
CEikAppUi* CreateAppUiL();
};

class CNavboyAppUi : public CAknViewAppUi
{
public:
void ConstructL();
~CNavboyAppUi();

private:

void DynInitMenuPaneL(TInt aResourceId,CEikMenuPane* aMenuPane);

private:

void HandleCommandL(TInt aCommand);


virtual TKeyResponse HandleKeyEventL(
const TKeyEvent& aKeyEvent,TEventCode aType);

private: //Data
CAknNavigationControlContainer* iNaviPane;
CAknTabGroup* iTabGroup;
CAknNavigationDecorator* iDecoratedTabGroup;
};

class CMainMenuView : public CAknView
{
public:
void ConstructL();
~CMainMenuView();

public:
TUid Id() const;

void HandleCommandL(TInt aCommand);

void HandleClientRectChange();

private:

void DoActivateL(const TVwsViewId& aPrevViewId,TUid aCustomMessageId,
const TDesC8& aCustomMessage);
void DoDeactivate();

private: // Data
CMainMenuContainer* iContainer;
};

class CMainMenuContainer : public CCoeControl, MCoeControlObserver
{
public: // Constructors and destructor

void ConstructL(const TRect& aRect);

~CMainMenuContainer();

public: // New functions

public: // Functions from base classes
TKeyResponse OfferKeyEventL(const TKeyEvent& aKeyEvent, TEventCode aType );

private: // Functions from base classes

void SizeChanged();
TInt CountComponentControls() const;
CCoeControl* ComponentControl(TInt aIndex) const;
void Draw(const TRect& aRect) const;
void HandleControlEventL(CCoeControl* aControl,TCoeEvent aEventType);

private:
CAknSingleStyleListBox* iMainMenuListBox; //manimenu
};

[liuxg]

Hi,

Please study the code:

\Symbian\6.1\Series60\Series60Ex\MultiViews

From there, you can see:

TUid CMultiViewsView2::Id() const
{
return TUid::Uid(EMultiViewsView2Id);
}

void CMultiViewsView2:oActivateL(const TVwsViewId& /*aPrevViewId*/,
TUid /*aCustomMessageId*/,
const TDesC8& /*aCustomMessage*/)
{
ASSERT(iContainer == NULL);
iContainer = CMultiViewsContainer2::NewL(ClientRect());
}

void CMultiViewsView2:oDeactivate()
{
if (iContainer)
{
AppUi()->RemoveFromStack(iContainer);
delete iContainer;
iContainer = NULL;
}
}

The container class is generated and destroyed in the above two places. However, your code constructed it in the function "ContructL()". This may give you the problem. If I understand correctly, the default implementation of the wizard is not like the way you are implementing!!!

Hope this help!

Good luck to you!

Liuxg
Forum Nokia

[fengwangjiang]

谢谢你的指点，我在仔细检查一下。谢谢你！