Question

I’m trying to use a framework called appcelerator titanium to make a simple iphone app. I’m trying to bring in an XML source and simply test its length, but nothing is being returned (and no errors are being thrown). I can’t figure out what’s going on. If I swap this XML URL out:

http://superfad.com/work/rss

for, say, this one:

http://api.twitter.com/1/statuses/user_timeline.json?screen_name=Superfad

I can find the length just fine, so I’m guessing it’s either some sort of crossdomain issue, or malformed XML, or something. Here’s my code:

var loader = Titanium.Network.createHTTPClient();
    // Sets the HTTP request method, and the URL to get data from
    //loader.open("GET","http://superfad.com/json/featured");
    //loader.open("GET","http://api.twitter.com/1/statuses/user_timeline.json?screen_name=Superfad");
    loader.open("GET","http://superfad.com/work/rss");
    //loader.open("GET","test.xml");
    // Runs the function when the data is ready for us to process
    loader.onload = function() 
    {
        Ti.API.log('projects!'); //THIS WORKS
        var projects = eval('('+this.responseText+')');
        Ti.API.debug('length' + projects.length) //THIS DOES NOT

    };

Any ideas what’s wrong?

Answer 1

you are trying to evaluate the xml of the rss feed as json. Your first link returns xml, your second links returns json. eval will work on json but not xml. As a note, don’t use eval to parse json. use JSON.parse.