Pilas NFC en el sistema operativo Android

Question

¿Puede alguien ayudarme a comprender el estado actual de la pila de Android NFC? Con el OS 2.3 se lanzó un pequeño soporte de NFC (limitado solo a la lectura de etiquetas NXP), más tarde, el Google aumenta la API, por lo que en os 2.3.3 el rango más ancho de Las etiquetas son compatibles y también es posible P2P.

Mi pregunta es cómo la abre NFC pila ( http://www.open -nfc.org/ ) se ajusta al estado actual?

Como entiendo, la pila de NFC abierta es la actividad paralela y es un reemplazo opcional para la pila actual. Debido a su descripción, supera algunos límites de la implementación de la pila de Google NFC y hace que las nuevas adaptaciones de HW (es decir, la compatibilidad con los nuevos tipos de etiquetas) ...

Para mi comprensión, esta pila está diseñada por los fabricantes de dispositivos utilizados, no los desarrolladores móviles, ¿es así? ¿O es posible descargar la pila de NFC abierta, compilarla como una biblioteca, colocada en .apk y use como alternativa la pila de Google?

Pero incluso será posible que los desarrolladores de aplicaciones usen la pila de NFC abierta, ¿tiene sentido con las nuevas características de 2.3.3 OS?

Answer 1

Can someone help me understanding the current state of the NFC Android stack? With the OS 2.3 there was released small NFC support (limited only to NXP tags reading), later the Google augment the API, so in OS 2.3.3 the wider range of tags is supported and also p2p is possible.

My question is how the Open NFC stack (http://www.open-nfc.org/) fits into current state??

At the moment (Android 2.3.4), the Android platform does not integrate the Open NFC stack. This stack has several advantages: not limited to one particular NFC hardware, portable to many different environments (not only Android), many additional features compared to the current stack. On the other hand, because Open NFC is not part of the standard Android environment, it requires some work (but it is actually quite easy) to use this stack in an Android platform. The Open NFC documentation describes this process.

As I understand the Open NFC stack is parallel activity and is optional replacement to the current stack. Due to its description it overcomes some limits of the Google NFC stack implementation and makes new HW adaptions (i.e. support for new tag types) easier…

Correct.

To my understanding this stack is intended to by used by device manufacturers, not mobile developers – is that right? Or is it possible to download the Open NFC stack, compile it as a library, put into .apk and use as an alternative the Google stack?

Unfortunately, because the standard Android kernel does not support modules loading, the Open NFC stack cannot be simply installed as another application, it requires a kernel change. But once the kernel is replaced, it is quite easy to deploy and use the Open NFC stack.

But even it will be possible for application developers to use the Open NFC stack – does it make sense with the new 2.3.3 OS features?

An application developer should probably stick to the OS features, even if more limited, since they assure the portability of the code over any NFC-enabled phone. But if you are trying to use "more" features than what comes with Android, Open NFC is a good candidate.

Hope this helps...

Answer 2

To my understanding this stack is intended to by used by device manufacturers, not mobile developers – is that right?

According to the Open NFC site, yes.