Archived:Using CTextResolver to resolve error texts
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Contents |
Overview
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This snippet can be self-signed.
MMP file
The following libraries are required:
LIBRARY commonui.lib
Header file
#ifndef __TESTERAPPUI_H__
#define __TESTERAPPUI_H__
// INCLUDES
#include <aknappui.h>
// FORWARD DECLARATIONS
class CTextResolver;
class CTesterAppView : public CCoeControl
{
private:
// Functions from base classes
void HandleCommandL(TInt aCommand);
//...
void DoHandleCommandL(TInt aCommand);
//...
private:
CTextResolver* iTextResolver;
};
#endif // __TESTERAPPUI_H__
Source file
#include <textresolver.h>
void CTesterAppUi::ConstructL()
{
//...
iTextResolver = CTextResolver::NewL(*iCoeEnv);
}
CTesterAppUi::~CTesterAppUi()
{
//...
delete iTextResolver;
}
void CTesterAppUi::HandleCommandL(TInt aCommand)
{
switch (aCommand)
{
case EEikCmdExit:
case EAknSoftkeyExit:
Exit();
break;
case ECommand1:
{
TPtrC errorTextPtr; // pointer to returned error text
TRAPD( errSimple, DoHandleCommandL( aCommand ) );
if ( errSimple != KErrNone )
{
// resolve the given error code
errorTextPtr.Set(iTextResolver->ResolveErrorString(errSimple));
}
else
{
// KErrNone, do something....
}
}
break;
case ECommand2:
{
TInt textId =0; // ID of the returned text
TUint flags = 0; // priority of the returned error
TPtrC errorTextPtr; // pointer to returned error text
TRAPD( errAdvanced, DoHandleCommandL( aCommand ) );
if ( errAdvanced != KErrNone)
{
// resolve the given error code
errorTextPtr.Set(iTextResolver->ResolveErrorString(errAdvanced, textId, flags));
//the flag indicates that the error has no proper explanation
if (flags & EErrorResBlankErrorFlag)
{
// do something...
}
//the flag indicates that Text Resolver does not support the error code
if (flags & EErrorResUnknownErrorFlag)
{
// do something...
}
//the flag is returned while processing KErrNoMemory error code
if (flags & EErrorResOOMFlag)
{
// do something...
}
}
else
{
// KErrNone do something...
}
}
break;
default:
Panic(ETesterUi);
break;
}
}
void CTesterAppUi::DoHandleCommandL(TInt aCommand)
{
//Do Something that might leave...
User::Leave(KErrNotSupported );
}
Postconditions
The class CTextResolver resolves the error text when the method called by the user leaves.
