tapset

Simple, no-frills app to save and restore device settings using NFC tags or QR codes.

Totally free. No ads, notification bar spam etc.

Get the source code at:

https://code.google.com/p/tapset/

Android and Java tutorial information that references this app can be found in that project wiki and at:

http://www.rader.us/tapset

Uses the zxing library to create QR code images:

https://code.google.com/p/zxing/

Requires the zxing Barcode Scanner app to read QR codes:

https://play.google.com/store/apps/details?id=com.google.zxing.client.android

Permissions:

NFC - to read and write NFC tags

MODIFY_AUDIO_SETTINGS - to adjust settings based on contents of NFC tag or QR code