Show Page Loading Spinner on Ajax Call in jQuery Mobile

You can use the beforeSend and complete events of $.ajax to call $.mobile.showPageLoadingMsg and $.mobile.hidePageLoadingMsg. Would look like this:

$('#main').live('pagecreate', function(event) {
        $.ajax({
            beforeSend: function() { $.mobile.showPageLoadingMsg(); }, //Show spinner
            complete: function() { $.mobile.hidePageLoadingMsg() }, //Hide spinner
            url: //url
            dataType: 'json',
            headers: //headers
            success: function(data) {
                //...
            }
        });
    });