Book Image

PhoneGap 3 Beginner's Guide

By : Giorgio Natili
Book Image

PhoneGap 3 Beginner's Guide

By: Giorgio Natili

Overview of this book

<p>You don’t have to know complex languages like Objective C to compete in the ever-growing mobile market place. The PhoneGap framework lets you use your web development skills to build HTML and JavaScript-based mobile applications with native wrappers that run on all the major mobile platforms, including Android, iOS, and Windows Phone 8.</p> <p>"PhoneGap 3 Beginner's Guide" will help you break into the world of mobile application development. You will learn how to set up and configure your mobile development environment, implement the most common features of modern mobile apps, and build rich, native-style applications. The examples in this book deal with real use case scenarios, which will help you develop your own apps, and then publish them on the most popular app stores.</p> <p>Dive deep into PhoneGap and refine your skills by learning how to build the main features of a real world app.</p> <p>"PhoneGap 3 Beginner's Guide" will guide you through the building blocks of a mobile application that lets users plan a trip and share their trip information. With the help of this app, you will learn how to work with key PhoneGap tools and APIs, extend the framework’s functionality with plug-ins, and integrate device features such as the camera, contacts, storage, and more. By the time you’re finished, you will have a solid understanding of the common challenges mobile app developers face, and you will know how to solve them.</p>
Table of Contents (22 chapters)
PhoneGap 3 Beginner's Guide
Credits
Foreword
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Time for Action – listing folders and files recursively


Get ready to explore the folders and their contents of the device's persistent storage. Use the following steps:

  1. Open the command-line tool and create a new PhoneGap project named FileSystem.

    $ cordova create ~/the/path/to/your/source/filesystem com.gnstudio.pg.FileSystem FileSystem
    
  2. Add the File API plugin using the command line.

    $ cordova plugins https: //git-wip-us.apache.org/repos/asf/cordova-plugin-file.git
    
  3. Go to the www folder, open the index.html file, and add a div element with the id value #fileslist inside the main div of the app, below the #deviceready one.

    <div id='fileslist'></div> 
  4. Go to the www/js folder, open the index.js file, and define a new function named requestFileSystem; the function has to be called once the deviceready event is fired.

    requestFileSystem: function(){
    
        // The file system access request will go here
    
    }
  5. In the body of the function, request access to the device filesystem specifying the...