Reader
constructor(change: ReaderChangedEvent.Change, reader: ReaderInfo, readerState: ReaderInfo.State, readerSerialNumber: String?)
Parameters
change
the type of change that occurred.
reader
the new status of the card reader. This is a "snapshot," not a live object, so it will not be updated in place to reflect new changes. Instead, a second callback will be made with a second instance of ReaderInfo.
reader
the new state of the reader obtained from ReaderInfo.
reader
the serial number of the reader obtained from ReaderInfo.