需要的頭文件:
#include<etel3rdparty.h>
所需鏈接庫:
LIBRARY etel3rdparty.lib
所需能力:
Capability ReadDeviceData
NetworkInfo.h
#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__
NetworkInfo.cpp
#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;
}