# iOS Module Development Guide

# Overview

Titanium provides the ability to extend the built-in functionality of the Titanium SDK through a series of optional extensions called modules. Modules let you write code in a platform's native language (Objective-C for iOS). Through a series of components, we can expose new functionality to the JavaScript running in the Titanium SDK.

These guides assume you are familiar with native development using the iOS SDK and Xcode.

# Chapters

iOS Module Quick Start

Provides basic information to quickly create, build, package and test modules.

iOS Module Architecture

Provides in-depth information about the class components used to build modules. Titanium uses a specific notation for each module component.

iOS Module Project

Provides in-depth information about the structure of a module project as well as using Studio and the CLI to manage the projects. Also provides information about adding assets and third-party frameworks to the module.

iOS Module API Reference (opens new window)

Useful APIs for module development. The module components extend the TiModule, TiProxy, TiUIView and TiViewProxy classes.

iOS Module Debugging

Step-by-step guide how to use Xcode to debug your iOS module.