Battery Charger Tutorial

This tutorial describes how to get the battery charger information.

Context

The client applications must check if the device can detect and provide the charger information.

Steps

create an instance of CTelephony
use CTelephony::GetIndicator() to get the charger information
the GetIndicator() returns a packaged descriptor CTelephony::TIndicatorV1 TIndicatorV1 enables the client application to determine if the device can detect a charger connection. If the device can detect a charger connection then the clients can determine the status of the charger
pass the enumeration CTelephony::EGetIndicatorCancel to cancel the asynchronous GetIndicator() request.

Battery charger example

#include <e32base.h>
#include <Etel3rdParty.h>

class CClientApp : public CActive
    { 

private:
    CTelephony* iTelephony;
    CTelephony::TIndicatorV1 iIndicatorV1;
    CTelephony::TIndicatorV1Pckg iIndicatorV1Pckg;
public:
    CClientApp(CTelephony* aTelephony);
    void SomeFunction();

private:
    /*
       These are the pure virtual methods from CActive that  
       MUST be implemented by all active objects
       */
    void RunL();
    void DoCancel();
   };

CClientApp::CClientApp(CTelephony* aTelephony)
    : CActive(EPriorityStandard),
      iTelephony(aTelephony),
      iIndicatorV1Pckg(iIndicatorV1)
    {
    //default constructor
    }

void CClientApp::SomeFunction()
    {
    iTelephony->GetIndicator(iStatus, iIndicatorV1Pckg);
    SetActive();
    }

void CClientApp::RunL()
    {
    if(iStatus==KErrNone)
       {
       if(iIndicatorV1.iCapabilities & CTelephony::KIndChargerConnected)
          {
          // We can detect when a charger is connected
          if(iIndicatorV1.iIndicator & CTelephony::KIndChargerConnected)
             {} // Charger is connected
          else
             {} // Charger is not connected
          }
       else
          {} // We do not know whether a charger is connected
       }
    }

void CClientApp::DoCancel()
    {
    iTelephony->CancelAsync(CTelephony::EGetIndicatorCancel);
    }