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  • Book Overview & Buying Near Field Communication with Android Cookbook
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Near Field Communication with Android Cookbook

Near Field Communication with Android Cookbook

By : Subtil
4 (1)
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Near Field Communication with Android Cookbook

Near Field Communication with Android Cookbook

4 (1)
By: Subtil
Buy this Book

Overview of this book

An easy-to-follow guide, full of hands-on examples of and real-world applications. Each recipe is explained and placed in context. If you want to learn how to create NFC-enabled Android applications, this is the book for you. Perhaps you already know a bit about Android application developments but have never used NFC, or perhaps you know a little about NFC android development but want some more advanced features and examples. In either case, this book will get you up and running quickly. You are expected to have Android programming knowledge.
Table of Contents (12 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. Getting Started with NFC
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1. Getting Started with NFC
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Introduction
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Requesting NFC permissions
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Indicating that your app uses NFC
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Defining minimal requirements
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Verifying whether the device has an NFC adapter
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Downloading Open NFC Android Edition
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Downloading Open NFC SDK Edition
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Configuring the Open NFC Android add-on into your Android SDK
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Configuring an NFC-enabled testing AVD
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Configuring the Connection Center tool
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Testing your app all together
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2. Detecting a Tag
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2. Detecting a Tag
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Introduction
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Understanding the foreground dispatch system
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Understanding the tag dispatch system
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Verifying if your app started because of an NFC intent
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Filtering tags by their content type
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Filtering tags by their content type programmatically
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Filtering tags by their technology
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Filtering tags by their technology using programs
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Filtering URI tags
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3. Writing Tag Content
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3. Writing Tag Content
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Introduction
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Working with the NDEF record
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Writing a URI-formatted record
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Writing a text-formatted record
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Using Android Application Record
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Working with external types
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Working with custom mimes
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4. Writing Tag Content – Real-life Examples
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4. Writing Tag Content – Real-life Examples
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Introduction
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Making a phone call with one tap – Part 1
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Sending a predefined SMS – Part 1
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Visiting our website
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Leaving a (small) note – Part 1
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5. Reading Tag Content
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5. Reading Tag Content
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Introduction
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Obtaining NDEF Message from Intent
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Getting the data out of the message
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Reading a text-formatted record
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Reading a URI-formatted record
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Reading external types
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Reading custom mimes
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6. Reading Tag Content – Real-life Examples
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6. Reading Tag Content – Real-life Examples
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Introduction
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Making a phone call with one tap – Part 2
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Sending a predefined SMS – Part 2
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Leaving a (small) note – Part 2
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Getting the tag information
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7. Sharing Content across Devices
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7. Sharing Content across Devices
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Introduction
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Creating a basic peer-to-peer Hello World application
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Sending texts to other devices
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Sending a friend invite on Facebook
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Inviting a friend to play a game – Part 1
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8. Error Handling and Content Validation
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8. Error Handling and Content Validation
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Introduction
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Handling tag-writing errors
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Handling tag-reading errors
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Testing the tag data for integrity
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9. Extending NFC
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9. Extending NFC
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Introduction
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Turning other adapters on/off
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Configuring a Wi-Fi network
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Starting a Wi-Fi hotspot
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Inviting a friend to play a game – Part 2
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Controlling hotel room access with Arduino and NFC – Part 1
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Controlling hotel room access with Arduino and NFC – Part 2
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10. Real-life Examples – NFC Utilities
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10. Real-life Examples – NFC Utilities
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Introduction
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Creating multi-action tags
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Choosing the best format for our data
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Locking tags
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Joking with a friend
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Index
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Index

Understanding the foreground dispatch system

In Android, we can have multiple applications to complete the same task. For example, we can have multiple web browsers installed, and when we want to open a web page, the Android system prompts us to choose which application to open; NFC applications are no different. The foreground dispatch system allows an activity to intercept an NFC intent (tag detected or P2P events) and claim priority over other activities that are registered to handle the same intent. This way, when our application is in the foreground, users won't be prompted to choose which application to open, and the intent is sent to our application.

An Intent is a messaging object that describes an operation to be performed and is generally used to start activities, services, and facilitate data exchange among different applications.

How to do it...

We are going to create an application that demonstrates how the foreground dispatch system works and how it is useful to us. To do so,...

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Tech Concepts
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Programming languages
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Near Field Communication with Android Cookbook
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