What is Android NFC (Near Field Communication)?

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Android NFC

Android NFC

What is Android NFC?

NFC stands for Near Field Communication. It’s a way for your device to interact with something in the close distance. It works within a radius of about 4 cm. Android NFC provides a wireless connection between your device and other phone or device. NFC allows two-way communication. It collaborates with both devices involved linked with one another. You may send or receive information. The Nfc connection does not rely on 3G, Wi-Fi, LTE, or other related connections like these. It does not cost anything to use.

Android NFC

NFC Modes

1. Reader or writer mode: It allows the NFC devices to read and write passive NFC tags and stickers.
2. P2P mode: It allows the NFC device to exchange data with other NFC pairs. This mode of operation is used by Android Beam.
3. Card emulation mode: In this mode, NFC device itself act as an NFC card. Then the emulated NFC card can be accessed by any external NFC reader.

Summary of Classes

There are six categories of NFC which are:
1. NDEF-Record: It represents a flexible NDEF Record.
2. NFC-Adapter: It represents local NFC adapter.
3. TAG: It represents an NFC tag that has been discovered.
4. NDEF-Message: It accounts for a flexible NDEF Message.
5. NFC-Event: It contains information associated with any NFC event.
6. NFC-Manager: It is used to obtain a case of an NFC-Adapter.

How does it work?

NFC sends and receives data via radio waves. It is an established standard of wireless communication. If devices connect to the Android NFC protocols, then they can communicate with each other. It differs from Bluetooth in that it works through electromagnetic induction.

Do you have this Feature?

All the phones and tablets don’t have NFC. Many devices have “N” mark on their back which is a sign of this feature. Most phones don’t have this mark, but they have this feature. You can check this feature by simply following these steps.
1. Unlock your device and go to Settings.
2. Tab More.
3. Scroll down and there you will see NFC & Android Beam options.
If your phone do not have this option, it means that your phone don’t have this function.

Activate Android NFC

You can activate this feature by following these steps:
1. Turn off the NFC switches to activate it. This act will also turn on the Android Beam.
2. If Android Beam doesn’t turn on, then tap it and turn on.
NFC depends on upon Android Beam. If Android Beam feature is disabled, it may maximize NFC’s sharing capacity.

How to Share Data?

You can share your data by NFC through these steps.
1. Open the desired content.
2. Attach both devices’ backs with each other.
3. Wait for audio sound and haptic confirmation.
4. Notice that, the sender’s screen must be shrink into a thumbnail and is displaying “Touch to beam” at the top.
5. Hit the sender’s screen to begin content beaming. A sound will generate when glowing starts.
6. When beaming completes, you will again hear audio confirmation. You also may receive a notification or that content will be opened in the device.
Here are some rules regarding Android NFC while sharing data.
• Both devices must have NFC and Android Beam activated.
• Both devices should be unlocked.
• When both devices detect each other, you will get both audio and haptic feedback
• Do not separate your data has been shared.
• You will hear audio sound when the content has been successfully beamed.

What can you share?

You can share apps, contacts, web pages, YouTube videos photos and much more.
1. Apps sharing:
NFC doesn’t send apk file. It just opens the app’s Play Store page and makes it ready for downloading.
2. Web content and information sharing:
NFC just sends the web page’s URL, and the receiving device will open it on default web browser.
3. Sharing YouTube Videos:
It does not share video however it just directs the recipient phone’s YouTube app to the video.
4. Sharing Photos:
You can share your photos and view these in Gallery.
5. Mobile Payments:
NFC is made for Mobile Payments. This function of Android NFC is very interesting. You can pay your bills using your cell phone’s NFC. NFC payments are already available in many stores across the US and the UK. Apps like “Softcard” and “Google Wallet” are available for this. You just have to tap your phone against an enabled terminal.

NFC Tags

These are small physical stickers containing NFC chips. It can be an be programmed to provide any information to your cell phone. An NFC tag provides links to the web address. It can also be set to perform certain functionalities like turn on/off Wi-Fi or ringer.

Android NFC

Problems with NFC

• NFC chips are not located at the same place in many devices. This results in a problem for frequent users.
• Cross-compatibility between devices is not general. Especially when it comes to specific file types.
• Not all the devices bear NFC Chip.