Rapid Android Development

Introducing NFC

Near field communication can be used to exchange data between any pair of NFC equipped devices. When we develop peer-to-peer apps for mobile devices, zero-click interaction via NFC is the key to effortless networking via Bluetooth or Wi-Fi Direct. Support for NFC was first added to Android in 2011 with the release of Ice Cream Sandwich,^[195] and although the technology is not yet ubiquitous, most Android phones and some tablets sold in the US today ship with it.

With NFC, we don’t need to make a device discoverable, compare passcodes, or explicitly pair it with another because we establish the NFC network simply by touching one device to another. Only the deliberate back-to-back touch of two devices will trigger an NFC event. ...