symbian背景灯和键盘开关控制

头文件：

class CExportContactsAppUi : public CAknViewAppUi, public MContactExportingNotify, public MHWRMLightObserver{public: void LightStatusChanged(TInt aTarget, CHWRMLight::TLightStatus aStatus);private: RAknKeyLock iKeyLock; CHWRMLight* iLight;} 

 

实现：

void CExportContactsAppUi::ConstructL(){ User::LeaveIfError(iKeyLock.Connect()); iLight = CHWRMLight::NewL(this);}void CExportContactsAppUi::LightStatusChanged(TInt aTarget, CHWRMLight::TLightStatus aStatus){ if(!aTarget) { } switch ( aStatus ) { case CHWRMLight::ELightOn: { break; } case CHWRMLight::ELightOff: case CHWRMLight::ELightBlink: case CHWRMLight::ELightStatusUnknown: { CHWRMLight::TLightTarget target = CHWRMLight::EPrimaryDisplayAndKeyboard; iLight->LightOnL( target ); break; } default: { break; } }}if(iKeyLock.IsKeyLockEnabled()){ iKeyLock.DisableWithoutNote();} User::ResetInactivityTime();