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Article Metadata

Code Example

Source file: Media:SystemNetworkInfo.zip

Tested with

Devices(s): Nokia 5800 xPressMusic

Compatibility

Platform(s): S60 3rd Edition, FP1, FP2

Platform Security

Signing Required: DevCert

Capabilities: ReadDeviceData

Article

Keywords: QSystemNetworkInfo, QString, QButton, QLabel, QComboBox

Created: kiran10182 (15 Mar 2010)

Last edited: hamishwillee (11 Feb 2013)

Tip: 
 Please read this article before moving forward: Archived:Setting up environment for Qt Mobility API
 Setup Carbide.c++ IDE as explained in this article: Working with Carbide.c++ IDE for Qt Mobility APIs

Overview

This is a part 1 of the QSystemNetworkInfo API which is a part of the System Information API from Qt Mobility project. The part 2 of this article can be read from here

What is covered in QSystemNetworkInfo API Part 1

It is a part of the System Information API.
This article covers information about
- Cell ID of the network
- Mobile Country code
- Mobile Network code
- Home Mobile Country code
- Home Mobile Network code
- Location Area code
- Network name
- Network Signal strength

Capabilities required

ReadDeviceData

UI design (.ui file)

Project configuration file (.Pro file)

Add the Qt Mobility project configuration option in the .Pro file as shown below

CONFIG += mobility
MOBILITY += systeminfo

Add required capability in .pro file as shown below:

symbian:TARGET.CAPABILITY = ReadDeviceData

Implementing QSystemNetworkInfo API

QSystemNetworkInfo API is a part of the QtMobility namespace. So declare the QtMobility namespace as shown below:

using namespace QtMobility;

Header file

#ifndef SYSTEMNETWORKINFO_H
#define SYSTEMNETWORKINFO_H
 
#include <QtGui/QWidget>
#include "ui_SystemNetworkInfo.h"
#include <qsysteminfo.h>
 
using namespace QtMobility;
class SystemNetworkInfo : public QWidget
{
    Q_OBJECT
 
public:
	SystemNetworkInfo(QWidget *parent = 0);
    ~SystemNetworkInfo();
public slots:
	void displayNetworkInfo(int aIndex);
	void resetAllFields();
 
private:
    Ui::SystemNetworkInfo ui;
    QSystemNetworkInfo* networkInfo;
};
 
#endif // SYSTEMNETWORKINFO_H

Source file

#include "SystemNetworkInfo.h"
 
SystemNetworkInfo::SystemNetworkInfo(QWidget *parent)
    : QWidget(parent), networkInfo(NULL)
{
	ui.setupUi(this);
	networkInfo = new QSystemNetworkInfo();
	QObject::connect(ui.comboBox, 
			SIGNAL(currentIndexChanged(int)),
			this, 
			SLOT(displayNetworkInfo(int)));
	QObject::connect(ui.resetButton,
			SIGNAL(clicked()),
			this, 
			SLOT(resetAllFields()));	
}
 
SystemNetworkInfo::~SystemNetworkInfo()
{
	delete networkInfo;
	networkInfo = NULL;
}
 
void SystemNetworkInfo::displayNetworkInfo(int aIndex)
{
	if(! aIndex)
	{
		ui.resultLabel->clear();
		return;
	}
 
	QString result;
	switch(aIndex)
	{
		case 1:
		{
			result = QString::number(networkInfo->cellId());
			break;
		}
		case 2:
		{
			result = networkInfo->currentMobileCountryCode();
			break;
		}
		case 3:
		{
			result = networkInfo->currentMobileNetworkCode();
			break;
		}
		case 4:
		{
			result = networkInfo->homeMobileCountryCode();
			break;
		}
		case 5:
		{
			result = networkInfo->homeMobileNetworkCode();
			break;
		}
		case 6:
		{
			result = QString::number(networkInfo->locationAreaCode());
			break;
		}
		case 7:
		{
			result = networkInfo->networkName(QSystemNetworkInfo::GsmMode);
			break;
		}
		case 8:
		{
			result = QString::number(networkInfo->networkSignalStrength(
							QSystemNetworkInfo::GsmMode));
			break;
		}
		default:
		{
			break;
		}
	}
	if(! result.length())
	{
		result = ("Not available");
	}
	ui.resultLabel->setText(result);
}
 
void SystemNetworkInfo::resetAllFields()
{
	ui.resultLabel->clear();
	ui.comboBox->setCurrentIndex(0);
}

Output

Useful functions

int cellId ();
QString currentMobileCountryCode ();
QString currentMobileNetworkCode ();
QString homeMobileCountryCode ();
QString homeMobileNetworkCode ();
int locationAreaCode ();
QString networkName ( QSystemNetworkInfo::NetworkMode mode );
int networkSignalStrength ( QSystemNetworkInfo::NetworkMode mode );

Keywords

Headers

#include <qsysteminfo.h>

Classes

QSystemNetworkInfo
QString
QButton
QLabel
QComboBox

Example Application

A working example application is available to download from here: QSystemNetworkInfo part1.zip

Reference links

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Contents

Working with QSystemNetworkInfo - System Information API - Part 1