Phonegap Android Back Button – close app with back button on homepage

Update: this has stopped working with a latest Phonegap update (supposedly). Feel free to offer a working solution if you know it.

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Here’s how I do it:

document.addEventListener("backbutton", function(e){
    if($.mobile.activePage.is('#homepage')){
        /* 
         Event preventDefault/stopPropagation not required as adding backbutton
          listener itself override the default behaviour. Refer below PhoneGap link.
        */
        //e.preventDefault();
        navigator.app.exitApp();
    }
    else {
        navigator.app.backHistory()
    }
}, false);

For further information, here you can find the related documentation with a full example: http://docs.phonegap.com/en/2.0.0/cordova_events_events.md.html#backbutton