How to detect that Tap+Send setting is disabled or enabled [WP8]

[AhmedRBasuony]

Hi,

I'm building an application using NFC for Windows Phone 8,
I want to know if the user enabled using Tap+Send from Device settings or not.

How can I detect that?

[Departed]

Hi,

Changing device setting through an app in WP8 is not possible. However, when you tap two WP8 devices and their Tap+Send setting is on , they will create a NFC communication channel that can be detected by a sound which appears when the devices are in proximity. By that sound you can detect whether Tap+Send for the device is enabled or not.

[influencer]

Hi Ahmed,

the following blog entry details on how to detect the tap and send state

How to detect if NFC is enabled on Windows Phone 8 devices


I'm a bit late with this hint but I just saw your question. Hope it helps, anyway.

Cheers,
Thomas

[joaocardoso]

Hi,

I'm building an application using NFC for Windows Phone 8,
I want to know if the user enabled using Tap+Send from Device settings or not.

How can I detect that?

Hi Ahmed,

Did Influencer solution worked for you?

As the article he referenced, in order to detect if the NFC sensor is ready to be usd you can do a simple test:

var nfcDevice  = Windows.Networking.Proximity.ProximityDevice.GetDefault();
if (nfcDevice != null) { // You are ready to use it
}
else {   // The device is not enabled
}

For this to work you need to add the ID_CAP_PROXIMITY and ID_CAP_NETWORKING capability to your app. To do that, on Solution Explorer, select Properties and then double click the WMAppManifest.xml file. A properties windows should come up.

If your app requires a device with NFC to function properly, you can also select on the Manifest Properties the ID_REQ_NFC option. That will prevent users with devices that does not support NFC to install your app. I would not recommend it dough. I prefer to warn the user about the need for the NFC device but having him / her to install my app anyway.