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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

Configuring the Connection Center tool

The Connection Center tool is like a bridge for communication between our AVD and our NFC Simulator. It just needs some simple configuration to provide smooth communication.

Getting ready

The following are the settings required for this recipe:

  • Make sure you have downloaded Open NFC SDK Edition—refer to the Downloading Open NFC SDK Edition recipe.
  • It's assumed that the Open NFC SDK Edition Core is already downloaded and extracted to the NFCBook folder in your home directory.
  • The .NET framework 2.0 or later must be installed. It can be downloaded directly from Microsoft Download Center, that is, http://www.microsoft.com/download.

How to do it…

We are going to configure the Connection Center tool properly to recognize our virtual device as follows:

  1. Open Explorer and go to the Open NFC SDK Edition folder.
  2. Open the folder named connection_center.
  3. Start Connection Center by right-clicking on Connection Center.exe and selecting Run as administrator.
  4. The program automatically starts hidden in the taskbar. Right-click on the icon labeled Connection Center and select Show from the context menu.
  5. Click on the Connection tab and configure it as shown in the following screenshot:
    How to do it…
  6. Restart the Connection Center tool.
  7. Click on the Connection tab and verify whether the changes were saved.

How it works…

Since our AVD and our PC are two different machines even though the AVD is running on our PC, we need to "tell" the Connection Center tool to allow incoming and outgoing connections from other machines. This way, our AVD is able to connect to the Connection Center tool and vice versa.

Note

If the Windows firewall asks you to add an exception, please do so. The Connection Center tool needs to access the network.

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