Book Image

Near Field Communication with Android Cookbook

By : Subtil
Book Image

Near Field Communication with Android Cookbook

By: Subtil

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)
11
Index

Configuring a Wi-Fi network


I'm sure you've experienced friends asking you for your Wi-Fi password when they come over, and I bet that most times the answer is "Don't remember," "I'm not sure," or "Let me check the router sticker." In this recipe, we will learn how to create an application to write a simple Wi-Fi network configuration to an NFC tag that allows us to stick it somewhere around the house.

How to do it...

We will store three Wi-Fi network fields, the SSID, the security type, and the password in the tag. When we read it, we will add the network to our device and enable the Wi-Fi adapter:

  1. Open Eclipse and create a new Android application project named NfcBookCh9Example2 and package named nfcbook.ch9.example2.

  2. Make sure the AndroidManifest.xml file is correctly configured. Refer to the Requesting NFC permissions recipe in Chapter 1, Getting Started with NFC.

  3. Request for permission to change the Wi-Fi adapter state by adding the following lines of code to AndroidManifest.xml:

    <uses...