readCard abstract method

Future<CardInfo?> readCard(
  1. String amount,
  2. String tradeTime,
  3. int tradeType,
  4. int swipeTimeout,
  5. CardReaderListener listener, [
  6. int index,
])

Implementation

Future<CardInfo?> readCard(String amount, String tradeTime, int tradeType,
    int swipeTimeout, CardReaderListener listener,
    [int index]);