Book Image

Appcelerator Titanium Smartphone App Development Cookbook

By : Boydlee Pollentine
Book Image

Appcelerator Titanium Smartphone App Development Cookbook

By: Boydlee Pollentine

Overview of this book

<p>Appcelerator Titanium Mobile allows developers to realize their potential to develop full native iPhone and Android applications by using free Titanium Studio tools without the need to know Objective-C or Java. This practical hands-on cookbook shows you exactly how to leverage the Titanium API to its full advantage and become confident in developing mobile applications in no time at all.<br /><br />Appcelerator Titanium Smartphone App Development Cookbook offers a set of practical and clear recipes with a step-by-step approach for building native applications for both the iPhone and Android platforms using your existing knowledge of JavaScript.<br /><br />This cookbook takes a pragmatic approach to using your JavaScript knowledge to create applications for the iPhone and Android platforms, from putting together basic UIs to handling events and implementation of third party services such Twitter, Facebook and Push notifications. This book shows you how to utilize both remote and local datasources using XML, JSON and the SQLite database system. The topics covered will guide you to use popular Titanium Studio tools effectively and help you leverage all the advanced mobile features such as Geolocation, Accelerometer, animation and more. Finally, you’ll learn how to register developer accounts and how to publish your very own apps to the Android and Apple marketplaces.</p>
Table of Contents (18 chapters)
Appcelerator Titanium Smartphone App Development Cookbook
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface

Creating a "pull and release" refresh mechanism


What happens if you want the user to be able to refresh the feed data in our table? You could create a regular button, or possibly check for new data at arbitrary time intervals. Alternatively, you could implement a cool 'pull and release' refresh mechanism made very popular by Twitter applications such as Tweetie and Twitter for Android.

In the final recipe for our Recipe Finder app, we will implement the very same type of refresh mechanism for our recipes feed, using the table view's headerPullView property.

Note

Complete source code for this recipe can be found in the /Chapter 2/Recipe 9 folder, while the complete source code for this entire chapter can be found in the /Chapter 2/RecipeFinder folder.

How to do it...

Open your recipes.js file and type in the following code under the "Ti.include" statements. This is where will be creating the pull view and adding our user interface components to it, before creating the event listeners that will...