Why does this app not work?

[jensesaat]

Hi, i'm a beginner with SymbianOS-Programming and need some help. i only want to know why this applications doesn't work. Thanks for your help and your advices.


This is my Header-File
/*
============================================================================
Name : SymbianAppContainer.h
Author : Jens Saathoff
Copyright : JS 2006
Description : Declares container control for application.
============================================================================
*/

#ifndef SYMBIANAPPCONTAINER_H
#define SYMBIANAPPCONTAINER_H

// INCLUDES
#include <coecntrl.h>

// FORWARD DECLARATIONS
class CEikLabel; // for example labels
class CEikEdwin;

// CLASS DECLARATION

/**
* CSymbianAppContainer container control class.
*
*/
class CSymbianAppContainer : public CCoeControl, MCoeControlObserver
{
public: // Constructors and destructor

/**
* EPOC default constructor.
* @param aRect Frame rectangle for container.
*/
void ConstructL(const TRect& aRect);

/**
* Destructor.
*/
~CSymbianAppContainer();

public: // New functions

public: // Functions from base classes

private: // Functions from base classes

/**
* From CoeControl,SizeChanged.
*/
void SizeChanged();

/**
* From CoeControl,CountComponentControls.
*/
TInt CountComponentControls() const;

/**
* From CCoeControl,ComponentControl.
*/
CCoeControl* ComponentControl(TInt aIndex) const;

/**
* From CCoeControl,Draw.
*/
void Draw(const TRect& aRect) const;


/**
* From MCoeControlObserver
* Acts upon changes in the hosted control's state.
*
* @param aControl The control changing its state
* @param aEventType The type of control event
*/
void HandleControlEventL(CCoeControl* aControl,TCoeEvent aEventType);

private: //data

CEikLabel* iLabel; // example label
CEikLabel* iToDoLabel; // example label
CEikEdwin* iInput;


};

#endif // SYMBIANAPPCONTAINER_H


This my Implementation.(CPP)

/*
============================================================================
Name : SymbianAppContainer.cpp
Author : Jens Saathoff
Copyright : JS 2006
Description : Container control implementation
============================================================================
*/

// INCLUDE FILES
#include "SymbianAppContainer.h"

#include <eiklabel.h> // for example label control
#include <eikedwin.h>


// ================= MEMBER FUNCTIONS =======================

// ---------------------------------------------------------
// CSymbianAppContainer::ConstructL(const TRect& aRect)
// EPOC two phased constructor
// ---------------------------------------------------------
//
void CSymbianAppContainer::ConstructL(const TRect& aRect)
{
CreateWindowL();

iLabel = new (ELeave) CEikLabel;
iLabel->SetContainerWindowL( *this );
iLabel->SetTextL( _L("Example View") );

iToDoLabel = new (ELeave) CEikLabel;
iToDoLabel->SetContainerWindowL( *this );
iToDoLabel->SetTextL( _L("Add Your controls\n here") );

iInput = new (ELeave) CEikEdwin;
iInput->SetContainerWindowL(* this);
// iInput->SetExtent(TPoint(10,40), iInput->MinimumSize());
//iInput->DrawNow();

SetRect(aRect);
ActivateL();
}

// Destructor
CSymbianAppContainer::~CSymbianAppContainer()
{
delete iLabel;
delete iToDoLabel;
delete iInput;
}

// ---------------------------------------------------------
// CSymbianAppContainer::SizeChanged()
// Called by framework when the view size is changed
// ---------------------------------------------------------
//
void CSymbianAppContainer::SizeChanged()
{
// TODO: Add here control resize code etc.
iLabel->SetExtent( TPoint(10,10), iLabel->MinimumSize() );
iToDoLabel->SetExtent( TPoint(10,100), iToDoLabel->MinimumSize() );
//iInput->SetExtent(TPoint(10,40), iInput->MinimumSize());
}

// ---------------------------------------------------------
// CSymbianAppContainer::CountComponentControls() const
// ---------------------------------------------------------
//
TInt CSymbianAppContainer::CountComponentControls() const
{
return 2; // return nbr of controls inside this container
}

// ---------------------------------------------------------
// CSymbianAppContainer::ComponentControl(TInt aIndex) const
// ---------------------------------------------------------
//
CCoeControl* CSymbianAppContainer::ComponentControl(TInt aIndex) const
{
switch ( aIndex )
{
case 0:
return iLabel;
case 1:
return iToDoLabel;
default:
return NULL;
}
}

// ---------------------------------------------------------
// CSymbianAppContainer:raw(const TRect& aRect) const
// ---------------------------------------------------------
//
void CSymbianAppContainer:raw(const TRect& aRect) const
{
CWindowGc& gc = SystemGc();
// TODO: Add your drawing code here
// example code...
gc.SetPenStyle( CGraphicsContext::ENullPen );
gc.SetBrushColor( KRgbGray );
gc.SetBrushStyle( CGraphicsContext::ESolidBrush );
gc.DrawRect( aRect );
}

// ---------------------------------------------------------
// CSymbianAppContainer::HandleControlEventL(
// CCoeControl* aControl,TCoeEvent aEventType)
// ---------------------------------------------------------
//
void CSymbianAppContainer::HandleControlEventL(
CCoeControl* /*aControl*/,TCoeEvent /*aEventType*/)
{
// TODO: Add your control event handler code here
}



the debug-run starts, if i click on my program icon , my program simply stops with an error: "program closed".

that's all.

sorry for this stupid question, i will get my symbian book this week.

Thank you

[wizard_hu_]

You have forgotten to ConstructL the editor control. Since its documentation is missing from S60 SDK-s, refer to http://www.symbian.com/developer/tec...CEikEdwin.html
You might also want to check "editor" example in the SDK, especially aknexeditorcontainer30 and 33.cpp.
If you would like to actually see the control, do not forget to include it in the ComponentControl method, and increase the number in CountComponentControls.

[jensesaat]

ok, thank you. now the edwin appears, but i can't get the focus. i can't add no text. thnx

[wizard_hu_]

You need to "bridge" keypresses in your control: implement an OfferKeyEventL method (check SDK help for syntax), with a simple

return iInput->OfferKeyEventL(...);

as a first try.
Also make sure that the AppUi contains an AddToStackL after creating your control (although as I remember, the appwizard does so).