signal strength

[venuc]

hai
how can i get signalstrength in mobile
please help me
iam getting error in this code

#include"battery.h"
#include <aknnotewrappers.h>
#include <etel3rdparty.h>
#include <E32DES8.H>
CBattery * CBattery::NewL()
{
CBattery *self= new(ELeave)CBattery();
CleanupStack::PushL(self);
self->ConstructL();
CleanupStack::PopAndDestroy(self);
return(self);
}
CBattery::CBattery():CActive(CActive::EPriorityStandard)
{

}
void CBattery::ConstructL()
{
itelephony=CTelephony::NewL();
CActiveScheduler::Add(this);
User::LeaveIfError(iTimer.CreateLocal());
}
void CBattery::Getinfo()
{
itelephony->GetSignalStrength (aReqStatus, aSignalStrength);
SetActive();
}
void CBattery::RunL()
{
// TBuf8<32>battery;

//CAknInformationNote* informationNote1 = new (ELeave) CAknInformationNote;
// informationNote1->ExecuteLD(aSignalStrength);
}
CBattery::~CBattery()
{
Cancel();
iTimer.Close();
}
void CBattery:oCancel()
{

iTimer.Cancel();

}

TInt CBattery::RunError(TInt aError)
{
return KErrNone;

}

[Symbian_Neil]

hai
how can i get signalstrength in mobile
please help me
iam getting error in this code

#include"battery.h"
#include <aknnotewrappers.h>
#include <etel3rdparty.h>
#include <E32DES8.H>
CBattery * CBattery::NewL()
{
CBattery *self= new(ELeave)CBattery();
CleanupStack::PushL(self);
self->ConstructL();
CleanupStack::PopAndDestroy(self);
return(self);
}
CBattery::CBattery():CActive(CActive::EPriorityStandard)
{

}
void CBattery::ConstructL()
{
itelephony=CTelephony::NewL();
CActiveScheduler::Add(this);
User::LeaveIfError(iTimer.CreateLocal());
}
void CBattery::Getinfo()
{
itelephony->GetSignalStrength (aReqStatus, aSignalStrength);
SetActive();
}
void CBattery::RunL()
{
// TBuf8<32>battery;

//CAknInformationNote* informationNote1 = new (ELeave) CAknInformationNote;
// informationNote1->ExecuteLD(aSignalStrength);
}
CBattery::~CBattery()
{
Cancel();
iTimer.Close();
}
void CBattery:oCancel()
{

iTimer.Cancel();

}

TInt CBattery::RunError(TInt aError)
{
return KErrNone;

}

I dont think you would get much help without mentioning what kind of error your are getting(and if you can even specify where..well that can be found by debugging your code)
Note: use code tags when you are pasting your code in the thread..makes it more readable for someone who wants to help!!

[kiran10182]

hai
how can i get signalstrength in mobile
please help me
iam getting error in this code

...

Perhaps this is what you are looking for: Monitoring signal strength with CTelephony

Kiran.

[aml_1989]

Compile error or runtime error?

I'm just a newbie, but in most code I've seen, the NewL function only has

CleanupStack::Pop(self);

rather than

CleanupStack::PopAndDestroy(self);

I think this makes a runtime error, as it will be returning a value that has been destroyed.

...or I could be wrong.

Andy.

[kiran10182]

Hi,

I guess you are referring to Two phase construction. Read more about it here and you can also google it. Two-phase_construction

Kiran.

[vasant21]

NewL is a factory method which returns newly created 'C' object, what is the meaning of this method if it destroys it.

And why do you think there is a runtime error, function call to Pop removes the pointer from the cleanupstack, it does not destroy the object, infact PopAndDestory deletes the object.

[aml_1989]

NewL is a factory method which returns newly created 'C' object, what is the meaning of this method if it destroys it.

And why do you think there is a runtime error, function call to Pop removes the pointer from the cleanupstack, it does not destroy the object, infact PopAndDestory deletes the object.

I was referencing to the original post

CBattery * CBattery::NewL()
{
CBattery *self= new(ELeave)CBattery();
CleanupStack::PushL(self);
self->ConstructL();
CleanupStack::PopAndDestroy(self);
return(self);
}

I think it should be changed from PopAndDestroy to Pop in order to prevent runtime error.

Andy.

[vasant21]

ok, your word "rather than" confused me, i thought you are in favour of PopAndDestroy inside NewL.