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Xamarin: Cross-Platform Mobile Application Development

You're reading from   Xamarin: Cross-Platform Mobile Application Development Master the skills required to develop cross-platform applications from drawing board to app store(s) using Xamarin

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Product type Course
Published in Aug 2016
Publisher Packt
ISBN-13 9781787120129
Length 1049 pages
Edition 1st Edition
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Authors (3):
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Jonathan Peppers Jonathan Peppers
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Jonathan Peppers
George Taskos George Taskos
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George Taskos
Can Bilgin Can Bilgin
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Can Bilgin
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Toc

Chapter 5. Dude, Where's my Data?

In this chapter, we will cover the following recipes:

  • Creating a shared SQLite data access
  • Performing CRUD operations in SQLite
  • Consuming REST web services
  • Leveraging native REST libraries and making efficient network calls

Introduction

There are three types of applications: online, offline, and both, where in some way the device synchronizes its local data with some remote data in a server.

In the disconnected mobile world, we have three local storage options to store data in your own sandbox space, the areas where you have the required permission to read and write data:

  • Preferences (simple key\value pairs user settings)
  • Direct access to the filesystem (JSON, XML, text, binary)
  • Local database (SQLite, NoSQL)

You can use one, none, or all of these options depending on your needs and your architecture decisions. Usually, my personal preference for local storage is to save user settings in preferences and when I need to query data, manipulate, and save...

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