Called by the native code when an element appears or disappears from the application list.

The callback is called when an application or a list of applications is either added by the installApplications method or removed by the removeApplications method. A new listener is called immediately after its registration with the current list of applications.

onListChanged( map )

This method does not return anything.

The map objects may look similar to the example below:

    {
    "http://example.com/index.html" : {
    "url" : "http://example.com/index.html",
    "copyright": null,
    (…)
    "name": "My app",
    "state": "installing",
    "version": "1.0.1" }
    }