NFCDecoder

Apple did a great job introducing CoreNFC in iOS 11. NFCDecoder adds the final piece to the puzzle - it gets actual Strings and URLs from that NFCNDEFPayload or NFCNDEFMessage. All widely used payload types are supported (text, URI and smart poster). NFCDecoder is free, lightweight and written in Swift. Try the example!

Installation

Cocoapods

NFCDecoder is available through CocoaPods. To install it, simply add the following line to your Podfile:

pod 'NFCDecoder'

Carthage

NFCDecoder is compatible with Carthage. Add it to your Cartfile:

github "impekable/NFCDecoder"

Usage

Add to your NFCReaderSessionDelegate:

    import NFCDecoder
    
    func readerSession(_ session: NFCNDEFReaderSession, didDetectNDEFs messages: [NFCNDEFMessage]) {
        let payloads = NFCDecoder().decode(messages)
        payloads.forEach { logToConsole(payload: $0) }
        stopNfcSession()
    }
    
    func logToConsole(payload: NdefPayload) {
        switch payload {
        case .text(let text):
            print(text.text, text.languageCode)
        case .uri(let uri):
            print(uri.url.absoluteString)
        case .smartPoster(let morePayloads): // Smart poster is just a container for more payloads
            morePayloads.forEach { logToConsole(payload: $0) }
        case .empty:
            print("empty payload")
        case .unknown(_):
            print("oops")
        }
    }

Full example project is available in Example directory.

Requirements

iOS 11+, iPhone 7 or newer.

Author

Impekable is a UI design and mobile development studio based in San Jose, CA. We help organizations from startups to Fortune 500 companies create memorable, human-centric mobile experiences.

License

NFCDecoder is available under the MIT license. See the LICENSE file for more info.