cdelayedhello.cpp

symbian活动对象的例子

// CDelayedHello.cpp
//
// Copyright (c) 2002 Symbian Ltd.  All rights reserved.

#include "cdelayedhello.h"

#include <eikenv.h>
#include <activehello.rsg>

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

CDelayedHello::CDelayedHello()
: CActive(0)
	{
	CActiveScheduler::Add(this);
	}

void CDelayedHello::ConstructL()
	{
	iEnv = CEikonEnv::Static();
	User::LeaveIfError(iTimer.CreateLocal());
	}

CDelayedHello::~CDelayedHello()
	{
	Cancel();
	iTimer.Close();
	}

// request

void CDelayedHello::SetHello(TTimeIntervalMicroSeconds32 aDelay)
	{
	_LIT(KDelayedHelloPanic, "CDelayedHello");
	__ASSERT_ALWAYS(!IsActive(), User::Panic(KDelayedHelloPanic, 1));

	iTimer.After(iStatus, aDelay);
	SetActive();
	}

// from CActive

void CDelayedHello::RunL()
	{
	iEnv->InfoMsg(R_ACTIVEHELLO_TEXT_HELLO);
	}

void CDelayedHello::DoCancel()
	{
	iTimer.Cancel();
	}