---
title: "init(pollingOption:delegate:queue:)"
framework: corenfc
role: symbol
role_heading: Initializer
path: "corenfc/nfctagreadersession/init(pollingoption:delegate:queue:)"
---

# init(pollingOption:delegate:queue:)

Creates an NFC tag reader session.

## Declaration

```swift
convenience init?(pollingOption: NFCTagReaderSession.PollingOption, delegate: any NFCTagReaderSessionDelegate, queue: DispatchQueue? = nil)
```

## Parameters

- `pollingOption`: One or more options specifying the type of tags that the reader session scans for and detects.
- `delegate`: An object that handles callbacks from the reader session.
- `queue`: A dispatch queue that the reader session uses when making callbacks to the delegate. When queue is nil, the session creates and uses a serial dispatch queue.

## See Also

### Creating a Tag Reader Session

- [NFCTagReaderSession.PollingOption](corenfc/nfctagreadersession/pollingoption.md)
- [NFCTagReaderSessionDelegate](corenfc/nfctagreadersessiondelegate-2joku.md)