Getting Cell ID in Java ME
Article Metadata
Code Example
Source file: Media:CellIDMIDlet.zip
Tested with
Devices(s): Nokia 701, Nokia Asha 305
Compatibility
Platform(s): Series 40, Symbian
Article
Keywords: System.getProperty(), Nokia proprietary system properties
Created: jarmlaht
(14 May 2008)
Last edited: skalogir
(16 Aug 2012)
Contents |
Overview
This code snippet demonstrates how to get the mobile cell ID by using Nokia system properties in Series 40 and S60 devices. Note that a different system property is used to get the cell ID in Series 40 and S60 devices:
| Platform Version | Security Domain | System property |
|---|---|---|
| Series 40 3rd Edition, FP1 up to Series 40 5th Edition | Manufacturer / Operator | System.getProperty("Cell-ID") |
| Series 40 5th Edition, FP1 up to Series 40 6th Edition FP1 | Manufacturer / Operator | System.getProperty("com.nokia.mid.cellid") |
| S60 3rd Edition, FP2 (or newer) | Untrusted 3rd party | System.getProperty("com.nokia.mid.cellid") |
| Series 40 Developer Platform 1.0 (or newer) | Untrusted 3rd party | System.getProperty("com.nokia.mid.cellid") |
Note: Signing in the manufacturer domain practically means that the property is inaccessible to 3rd party developers. Please ensure that your device belongs to a platform where the system property is available in the untrusted 3rd party domain
Source
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
public class CellIDMIDlet extends MIDlet implements CommandListener {
private Form form;
private Command exitCommand;
private String old_cell_id; // Old cell id property for some Series 40 devices
private String new_cell_id; // New cell id property for the latest Series 40 and Symbian devices
public void startApp() {
form = new Form("Getting Cell ID");
old_cell_id = System.getProperty("Cell-ID");
new_cell_id = System.getProperty("com.nokia.mid.cellid");
form.append("Old System Property: " + old_cell_id + "\n");
form.append("New System Property: " + new_cell_id);
exitCommand = new Command("Exit", Command.EXIT, 1);
form.setCommandListener(this);
form.addCommand(exitCommand);
Display.getDisplay(this).setCurrent(form);
}
public void pauseApp() {
}
public void destroyApp(boolean unconditional) {
}
public void commandAction(Command c, Displayable d) {
if (c == exitCommand) this.notifyDestroyed();
}
}
Postconditions
When the MIDlet is run in either a Series 40 or S60 device, a cell ID should be shown on the Form (one will have a numeric value and another will have 'null').
