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  • Book Overview & Buying Appcelerator Titanium Smartphone App Development Cookbook Second Edition
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Appcelerator Titanium Smartphone App Development Cookbook Second Edition

Appcelerator Titanium Smartphone App Development Cookbook Second Edition

By : Jason Kneen
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Appcelerator Titanium Smartphone App Development Cookbook Second Edition

Appcelerator Titanium Smartphone App Development Cookbook Second Edition

5 (4)
By: Jason Kneen
Buy this Book

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 (16 chapters)
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Preface
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Preface
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What this book covers
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What you need for this book
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Who this book is for
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Conventions
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Reader feedback
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Customer support
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1
1. Building Apps Using Native UI Components
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1. Building Apps Using Native UI Components
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Introduction
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Building with windows and views
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Adding a tabgroup to your app
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Creating and formatting labels
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Creating textfields for user input
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Working with keyboards and keyboard toolbars
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Enhancing your app with sliders and switches
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Passing custom variables between windows
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Creating buttons and capturing click events
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Informing your users with dialogs and alerts
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Creating charts using Raphael JS
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Creating an actionbar in Android
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2. Working with Local and Remote Data Sources
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2. Working with Local and Remote Data Sources
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Introduction
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Reading data from remote XML via HTTPClient
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Displaying data using a TableView
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Enhancing your TableViews with custom rows
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Filtering the TableView using a SearchBar component
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Speeding up your remote data access with Yahoo YQL and JSON
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Creating a SQLite database
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Saving data locally using a SQLite database
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Retrieving data from a SQLite database
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Creating a "Pull to Refresh" mechanism in iOS
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3. Integrating Maps and GPS
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3. Integrating Maps and GPS
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Introduction
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Adding a MapView to your application
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Getting your current position using GeoLocation
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Converting addresses to latitude and longitude locations
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Adding annotations to your MapView
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Customizing annotations and adding events to your MapView
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Drawing routes on your MapView
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Monitoring your heading using the device compass
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4. Enhancing Your Apps with Audio, Video, and Cameras
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4. Enhancing Your Apps with Audio, Video, and Cameras
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Introduction
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Choosing your capture device using an OptionDialog modal
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Capturing photos from the camera
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Choosing existing photos from the photo library
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Displaying photos using ScrollableView
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Saving your captured photo to the device filesystem
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Capturing and playing audio via the audio recorder
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Capturing video via the video recorder
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Playing video files from the filesystem
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Safely deleting saved files from the filesystem
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5. Connecting Your Apps to Social Media and E-mail
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5. Connecting Your Apps to Social Media and E-mail
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Introduction
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Composing and sending e-mails
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Adding attachments to an e-mail
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Setting up a custom Facebook application
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Integrating Facebook into your Titanium app
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Posting to your Facebook wall
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Posting to Twitter in iOS
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Posting to Facebook in iOS
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Sharing on Android using Intents
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6. Getting to Grips with Properties and Events
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6. Getting to Grips with Properties and Events
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Introduction
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When should you use app properties?
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Reading and writing app properties
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Firing and capturing events
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Passing event data between your app and a Webview using custom events
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7. Creating Animations, Transformations and Implementing Drag and Drop
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7. Creating Animations, Transformations and Implementing Drag and Drop
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Introduction
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Animating a view using the Animate method
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Animating a view using 2D Matrix and 3D Matrix transformations
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Dragging an ImageView using touch events
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Scaling an ImageView using the slider control
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Saving our funny face using the toImage() method
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8. Interacting with Native Phone Applications and APIs
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8. Interacting with Native Phone Applications and APIs
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Introduction
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Creating an Android options menu
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Accessing the contacts / address book
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Storing and retrieving data via the clipboard
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Creating a background service on an iPhone
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Updating data using background fetch
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Displaying local notifications on an iPhone
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Displaying Android notifications using intents
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Storing your Android app on the device's SD card
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9. Integrating Your Apps with External Services
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9. Integrating Your Apps with External Services
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Introduction
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Connecting to APIs that use basic authentication
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Fetching data from the Google places API
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Connecting to FourSquare using oAuth
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Posting a check-in to FourSquare
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Searching and retrieving data via Yahoo! YQL
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Integrating push notifications with Parse.com
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Testing push notifications using PHP and HTTP POST
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10. Extending Your Apps with Custom Modules
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10. Extending Your Apps with Custom Modules
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Introduction
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Integrating an existing module – the PayPal mobile payment library
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Preparing your iOS module development environment
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Developing a new iPhone module using XCode
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Creating a public API method
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Packaging and testing your module using the test harness
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Packaging your module for distribution and sale!
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11. Platform Differences, Device Information, and Quirks
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11. Platform Differences, Device Information, and Quirks
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Introduction
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Gathering information about your device
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Obtaining the device's screen dimensions
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Understanding device orientation modes
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Coding around the differences between the iOS and Android APIs
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Ensuring that your device can make phone calls
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12. Preparing Your App for Distribution and Getting It Published
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12. Preparing Your App for Distribution and Getting It Published
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Introduction
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Joining the iOS developer program
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Installing iOS developer certificates and provisioning profiles
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Building your application for iOS using studio
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Joining the Google Android developer program
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Creating your application's distribution key
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Building and submitting your app to the Google Play Store
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13. Implementing and Using URL Schemes
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13. Implementing and Using URL Schemes
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Introduction
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Detecting whether another iOS app is installed
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Launching another iOS app
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Passing parameters to other apps via a URL
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Launching Apple Maps and Google Maps with route directions
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Opening URLs in Chrome for iOS
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Setting up your own apps to use URL schemes
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Receiving URL commands in your own app
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Transferring binary data between apps using a URL scheme
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14. Introduction to Alloy MVC
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14. Introduction to Alloy MVC
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Introduction
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Installing Alloy and creating an Alloy project
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Building views and windows
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Creating Buttons and Labels using Events
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Changing the look of your app with styles
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Working with Navigation and TabGroups
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Adding an Alloy widget to your application
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Creating your own Alloy widget
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Integrating data using models and collections
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Index
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Index

Saving our funny face using the toImage() method

For our very last part of this application, we want to combine the two images together (being our me photograph and the funny face image we have chosen) and save them to the filesystem as one complete image. To do this, we will hook up the event listener of our save button control and use another common method found on almost all views and control types, toImage. Once we've combined both our images together and saved the resulting image off to the local filesystem, we'll then create a quick e-mail dialog and attach our funny face to it, allowing the user to send the complete image off to their friends!

How to do it…

Underneath the instantiation of your btnSave object, add the following event listener and handler code:

btnSave.addEventListener("click", function(e) {
  //hide the footer
  footer.visible = false;

  //do a slight delay before capturing the image
  //so we are certain the footer is hidden!
  setTimeout(function(e) {
    //get the...
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