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This page was last modified 08:45, 9 January 2009.

CS001160 - Listing installed applications

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ID	CS001160	Creation date	October 30, 2008
Platform	S60 5th Edition	Tested on devices	Nokia 5800 XpressMusic
Category	Web Runtime (WRT)	Subcategory	S60 Platform Services

Keywords (APIs, classes, methods, functions): device.getServiceObject(), Service.AppManager

Overview

This code snippet demonstrates how to use the AppManager Service API to discover the applications that are installed on the device.

Source: widget.xhtml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
        <script type="text/javascript" src="script.js" />
        <title>WRT Application</title>
    </head>
    <body>
        <div id="bodyContent" class="bodyContent">
        </div>
    </body>
</html>

Source: script.js

var serviceObj = null;
 
window.onload = init;
 
// Initializes the widget
function init() {
    // Obtain the AppManager service object
    try {
        serviceObj = device.getServiceObject("Service.AppManager",
            "IAppManager");
    } catch (ex) {
        alert("Service object cannot be found.");
        return;
    }
 
    // We are interested in applications, so let's define the criteria
    // respectively
    var criteria = new Object();
    criteria.Type = "Application";
 
    // Obtain the list of installed applications
    var result = serviceObj.IAppManager.GetList(criteria);
    var appList = createAppList(result.ReturnValue);
    appList.sort();
    displayList(appList);
}
 
// Creates the list of installed applications
function createAppList(iterator) {
    var list = new Array();
    try {
        iterator.reset();
        var item;
        while ((item = iterator.getNext()) != undefined) {
            var txt = "";
            txt += item.Caption + " (";
            txt += item.Uid + ")";
            list.push(txt);
        }
    } catch (ex) {
        alert(ex);
    }
    return list;
}
 
// Displays a list on the screen
function displayList(list) {
    var listElement = document.createElement("ol");
    for (var i = 0; i < list.length; i++) {
        var listItemElement = document.createElement("li");
        var textElement = document.createTextNode(list[i]);
        listItemElement.appendChild(textElement);
        listElement.appendChild(listItemElement);
    }
    var bodyContentElement = document.getElementById("bodyContent");
    bodyContentElement.appendChild(listElement);
}

Postconditions

The example displays an alphabetically ordered list of installed applications and their UIDs on an HTML page.

Supplementary material

You can test the application listing features in action in a simple, executable application into which this code snippet has been patched. The application is available for download at: Media:WRTStub_CS001160.zip
You can examine all the changes that are required to implement the above mentioned features in an application. The changes are provided in unified diff and color-coded diff formats: Media:CS001160_Listing_installed_applications.diff.zip
For general information on applying the patch, see Using Diffs.
For unpatched stub applications, see Example stub.

Retrieved from "http://wiki.forum.nokia.com/index.php/CS001160_-_Listing_installed_applications"

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