Titanium Community Questions & Answer Archive

We felt that 6+ years of knowledge should not die so this is the Titanium Community Questions & Answer Archive

Using AJAX in Titanium

I am getting confused with how the AJAX part of the Titanium API works, and what code we are still required to use. jQuery in the past has taken a lot of this load off my shoulders, so am curious what needs adding.

I basically have a php file on a remote server, and want to pasa variable in, and run an if statement, then pull a variable out into the mobile (android) app.

I have seen lots of code some use Titanium.ajax or xhr and createHTTPClient, and I am just confused as to what I should be using to get my data. If you could help that'd be great.

— asked April 8th 2010 by Dan Duke
  • ajax
  • android
  • beginner
  • bestpractice
  • mobile
  • php
  • win32

6 Answers

  • Hey Dan..

    We have a custom XHR that follows the same API the standard XHR does on the web (with a few extra features like binary / multi-part support). You can find quite a few examples of our XHR in KitchenSink

    — answered April 8th 2010 by Marshall Culpepper
  • Thanks for that, I got the twitter one working just fine, but when I tried to get xhr.open to open my own php file it seems xhr.onload doesn't get run (I amtesting with lots of API.info() calls).

    All that my php file is outputting is:


    What I have is something like:

    function getMapData(){
        var xhr = Titanium.Network.createHTTPClient();
        xhr.onload = function()
            Ti.API.info('xml ' + this.responseXML + ' text ' + this.responseText);
        // open the client
        // send the data

    All of the yo's run, but nothing else, and not sure why

    — answered April 9th 2010 by Dan Duke
  • I'm no XML expert, but your results string is not an XML document (unless you left all that out), with header and tags, etc.; perhaps the XML parser is barfing on the string? The Kitchen Sink example returns an entire XML doc from Twitter (see the info output on the simulator). You might try printing just this.responseText. Also, I think I had some problem with viewing/using the response text until I assigned it to a var first: var rt = this.responseText; Ti.API.info('rt=' + rt);

    I got our PHP XHR code to work fine with our app, but I was not using the responseXML part.

    — answered April 9th 2010 by Richard Baughman
  • No, I wasn't using XML, I was trying to return using JSON format, so used:

    $encoded = json_encode($arr);

    Is this not possible? I couldn't find a JSON example, so used the twitter one as a starting block.

    — answered April 9th 2010 by Dan Duke
  • Ok incase someone stumbles across this, here are some pointers. In php I used json_encode(). As for decoding it, the kitchen sink example I needed was xhr_utf8.js. The results were then used in the same object way in javascript varName['objectLevel1']['objectLevel2']

    One thing to note though is to check your emulator is connected to the enternet, I had a ubg in mine, meaning I had to open an emu BEFORE titanium opened one.

    Hope this helps others

    — answered April 15th 2010 by Dan Duke
The ownership of individual contributions to this community generated content is retained by the authors of their contributions.
All trademarks remain the property of the respective owner.