binary operator '==' cannot be applied to operands of type 'String!' and '[String]' in Swift 2 Xcode 7

I have developed the following code and it's working fine:

if metadataObj.type == AVMetadataObjectTypeQRCode {
    //the code...
}

Now, I would like for metadataObj.type to be equal to an array of string like the following:

let barCodeTypes = [AVMetadataObjectTypeQRCode,
                    AVMetadataObjectTypeAztecCode
]

if metadataObj.type == barcodeTypes {
    //The code...
}

I get the following error when I use the new code:

binary operator '==' cannot be applied to operands of type 'String!' and '[String]'

Any suggestions? Thanks in advance