gistfile1.swift

class DetailViewController: UIViewController,ScanApiHelperDelegate {
    let noScannerConnected = "No scanner connected"
    var scanners : [NSString] = []
    @IBOutlet weak var connectionStatus: UILabel!
    @IBOutlet weak var decodedData: UITextField!
    
    var detailItem: AnyObject?

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
        ScanApiHelper.sharedScanApiHelper().pushDelegate(self)
        displayScanners()

    }

    override func viewDidDisappear(animated: Bool) {
        ScanApiHelper.sharedScanApiHelper().popDelegate(self)
    }
    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }

    func displayScanners(){
        if let status = connectionStatus {
            status.text = ""
            for(var scanner) in scanners {
                status.text = status.text! + scanner + "\n"
            }
            if(scanners.count == 0){
                status.text = noScannerConnected
            }
        }
    }
    
    // MARK: - ScanApiHelperDelegate
    
    func onDecodedDataResult(result: Int, device: DeviceInfo!, decodedData: ISktScanDecodedData!) {
        println("onDecodedDataResult in the detail view")
        if result==ESKT_NOERROR {
            let rawData = decodedData.getData()
            let rawDataSize = decodedData.getDataSize()
            let data = NSData(bytes: rawData, length: Int(rawDataSize))
            println("Size: \(rawDataSize)")
            println("data: \(data)")
            let str = NSString(data: data, encoding: NSUTF8StringEncoding)
            let string = str as String
            println("Decoded Data \(string)")
            self.decodedData.text = string
        }
    }
    
    func onDeviceArrival(result: SKTRESULT, device deviceInfo: DeviceInfo!) {
        println("onDeviceArrival in the detail view")
        scanners.append(deviceInfo.getName())
        displayScanners()
    }
    
    func onDeviceRemoval(deviceRemoved: DeviceInfo!) {
        println("onDeviceRemoval in the detail view")
        var newScanners : [String] = []
        for (var scanner) in scanners{
            if(scanner != deviceRemoved.getName()){
                newScanners.append(scanner)
            }
        }
        scanners=newScanners
        displayScanners()
    }
}