On an Android device equipped with NFC reader hardware, is there any in-built support to use the NFC tag contents to fire off an intent (e.g. starting an app)? I am asking w
If you are not trying to program your app to do this yourself then you can use a 3rd party app. Such as "Trigger" (I believe it used be called NFCTasker or something like that).
You can use that to read from tags and write to tags. You can create various actions including launch an app (others include changing volume, toggling wifi, text to speech, sending messages, etc).