#include<etel3rdparty.h>

LIBRARY  etel3rdparty.lib

Capability  ReadDeviceData

#ifndef __NETWORKINFO_H__
#define __NETWORKINFO_H__
 
#include <etel3rdparty.h> // CTelephony
 
// Observer interface
class MNetworkInfoObserver
    {
    public:
        virtual void NetworkInfoRetrievedL(
            const CTelephony::TNetworkInfoV1& aNetworkInfo) = 0;
        virtual void HandleNetworkInfoError(TInt aError) = 0;
    };
 
// Active object to get network info
class CNetworkInfo : public CActive
    {
    public:
        static CNetworkInfo* NewL();
        ~CNetworkInfo();
 
        void GetNetworkInfoL(MNetworkInfoObserver* aObserver);
 
    protected:
        // from CActive
        void RunL();
        TInt RunError(TInt aError);
        void DoCancel();
 
    private:
        CNetworkInfo();
        void ConstructL();
 
    private:
        CTelephony* iTelephony;
        CTelephony::TNetworkInfoV1 iNwInfo;
        CTelephony::TNetworkInfoV1Pckg iNwInfoPckg;
        MNetworkInfoObserver* iObserver;
    };
 
#endif // __NETWORKINFO_H__

#include "NetworkInfo.h"
 
CNetworkInfo::CNetworkInfo()
    : CActive(EPriorityStandard),
      iNwInfoPckg(iNwInfo)
    {
    CActiveScheduler::Add(this);
    }
 
CNetworkInfo* CNetworkInfo::NewL()
    {
    CNetworkInfo* self = new (ELeave) CNetworkInfo;
    CleanupStack::PushL(self);
    self->ConstructL();
    CleanupStack::Pop();
    return self;
    }
 
void CNetworkInfo::ConstructL()
    {
    iTelephony = CTelephony::NewL();
    }
 
CNetworkInfo::~CNetworkInfo()
    {
    Cancel();
    delete iTelephony;
    }
 
// This function is used by our class' users to start getting network info.
void CNetworkInfo::GetNetworkInfoL(MNetworkInfoObserver* aObserver)
    {
    __ASSERT_ALWAYS(!IsActive(), User::Leave(KErrInUse));
    iObserver = aObserver;
 
    // Start async call to receive current network information
    iTelephony->GetCurrentNetworkInfo(iStatus, iNwInfoPckg);
    SetActive();
    }
 
void CNetworkInfo::DoCancel()
    {
    iTelephony->CancelAsync(CTelephony::EGetCurrentNetworkInfoCancel);
    }
 
void CNetworkInfo::RunL()
    {
    User::LeaveIfError(iStatus.Int());
    // Request completed successfully.
    // Now we can notify our observer.
    if(iObserver)
        {
        iObserver->NetworkInfoRetrievedL(iNwInfoPckg());
        }
    }
 
TInt CNetworkInfo::RunError(TInt aError)
    {
    // There was an error retrieving current network info.
    // Let's inform our observer about the error so that it can analyze it
    // and try to recover.
    if(iObserver)
        {
        iObserver->HandleNetworkInfoError(aError);
        }
 
    return KErrNone;
    }