In order to create a basic application that will turn the adapters on/off, make sure that you take care of the following elements:
Make sure you have a working Android development environment. If you don't, ADT Bundle is a good start. It is available at http://developer.android.com/sdk/index.html.
Also, you should have an NFC-enabled Android device or a virtual test environment. Refer to the Testing your app all together recipe in Chapter 1, Getting Started with NFC.
We assume that Eclipse is your development IDE and that you are familiar with writing external-type
NdefRecords. Refer to the Working with external types recipe in Chapter 3, Writing Tag Content.