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PhoneGap 4 Mobile Application Development Cookbook

You're reading from   PhoneGap 4 Mobile Application Development Cookbook Build real-world hybrid mobile applications using the robust PhoneGap development platform

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Product type Paperback
Published in Oct 2015
Publisher
ISBN-13 9781783287949
Length 356 pages
Edition 1st Edition
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Toc

Table of Contents (14) Chapters Close

Preface 1. Welcome to PhoneGap 3 FREE CHAPTER 2. Movement and Location – Using the Accelerometer and Geolocation Sensors 3. Filesystems, Storage, and Local Databases 4. Working with Audio, Images, and Video 5. Working with Your Contacts List 6. Hooking into Native Events 7. Working with XUI 8. Working with the Ionic Framework 9. Ionic Framework Development 10. User Interface Development 11. Extending PhoneGap with Plugins 12. Development Tools and Testing Index

Opening a local file from the device storage

While developing your mobile application, you may need or want to read particular files from the storage system or from another location on the device.

How to do it…

In this recipe, we will build an application that will create a text file on the phone's storage filesystem, write content to the file, and then open the file to display the content:

  1. Firstly, create a new PhoneGap project named devicestorage by running this line:
    phonegap create devicestorage com.myapp.devicestorage devicestorage
    
  2. Add the devices platform. You can choose to use Android, iOS, or both:
    cordova platform add ios
    cordova platform add android
    
  3. Add the file plugin by running the following line:
    phonegap plugin add org.apache.cordova.file
    
  4. We're going to use the XUI JavaScript library to easily access the DOM elements, so we'll include the reference to the file within the head tag.
  5. Open www/index.html and clean up the unnecessary elements. So, we will have this...
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