This demo application was build using NFC facilities adopted in the MIT App Inventor (Ai2). You can easily make your own applications that write and read messages on NFC tags (Mifare tags). I hope this demo app will help you. Complete source program (screen shot) of my demo app is shown here. Also please read notices below:
(1) Use this app after “Build” rather than just in “Connect” mode. That is, download the app on your Android device and then touch a tag.
(2) NFC tags should be initialized before using this app. I recommend you to write something on your tag first by using TagWriter or some other app in the Google Play.
(3) Also note that if “NearField1.ReadMode” is true then it is in ReadMode else it is in WriteMode !
Click the figures to enlarge.
Any chance you could post a youtube video as to what the NFC app should do? I am a bit unclear as to its application or purpose. i am currently trying to develop an app that aligns an NFC tag with a video and im having a lot of trouble