There are quite a few tutorials that will show you how to how to get autocomplete for CodeIgniter 1.7.x but unfortunately the same doesnt apply for CodeIgniter 2.0. I have however been using a method that allows me to get code-hinting across my controllers and models.
This comes with a warning however. We will be making some changes to the controller.php and model.php so make sure you backup these 2 files or at the very least have a zipped copy of CodeIgniter handy in case things go awry.
If you have your codeigniter app ready, navigate to your system folder and open up controller.php and model.php in the core directory. Copy the lines below and paste them in each file. Most likely before the start of the class declaration.
Filed In: CodeIgniter
Tags: Sony Ericsson, UIQ 3.0, Themes, P5