Book Image

Appcelerator Titanium Smartphone App Development Cookbook Second Edition

Book Image

Appcelerator Titanium Smartphone App Development Cookbook Second Edition

Overview of this book

This book will take you through the process of building cross-platform, native UI applications for the mobile from scratch. You will learn how to develop apps, how to use GPS, cameras and photos and how to build socially connected apps. You will also learn how to package them for submission to the App Store and Google Play. This cookbook takes a pragmatic approach to creating applications in JavaScript from putting together basic UIs, to handling events and implementation of third party services such as Twitter, Facebook and Push notifications. The book shows you how to integrate datasources and server APIs, and how to use local databases. The topics covered will guide you to use Appcelerator Studio tools for all the mobile features such as Geolocation, Accelerometer, animation and more. You’ll also learn about Alloy, the Appcelerator MVC framework for rapid app development, and how to transfer data between applications using URLSchemes, enabling other developers to access and launch specific parts of your app. Finally, you will learn how to register developer accounts and publish your very own applications on the App Store and Google Play.
Table of Contents (21 chapters)
Appcelerator Titanium Smartphone App Development Cookbook Second Edition
About the Author
About the Reviewers

Creating Buttons and Labels using Events

So far, we've looked at a basic project and creating Windows and Views. Now, let's look at creating some Labels and Buttons and adding some click events.

How to do it...

Keep the index.xml that you created for the last recipe. Let's modify it a little to add some labels and buttons. Change the code to the following:

  <Window backgroundColor="white" layout="vertical">
    <Label id="myLabel" borderRadius="2" top="40" borderColor="#CCC" height="35" width="200"/>
    <Button id="myButton" borderRadius="2" backgroundColor="#35e" color="#fff" top="10" height="35" width="100">Click me!</Button>

Build the app in the simulator to see the following:

Notice that we're using a vertical layout to make things easier, and we've created a simple label and button. Try clicking on the button… nothing happens. So, we need to add an event.

Typically, in classic code, we'd use the addEventListener method...