This is achieved easily by adding the
NSCameraUsageDescription key to the
Info.plist along with usage description string. This usage string is displayed when the user is asked to allow access, so localization may be desired depending on your user base.
com.apple.developer.nfc.readersession.iso7816.select-identifiers has to be added and a list of application identifiers has to be declared there which the app has to able to read according to ISO7816. The list of application identifiers which Document Reader SDK is able to process can be found here.