readCard method
Implementation
Future<CardInfo?> readCard(String amount, String tradeTime, int tradeType,
int swipeTimeout, CardReaderListener listener,
[int? index]) {
if (index == null) {
return TySmartPosApiPluginPlatform.instance
.readCard(amount, tradeTime, tradeType, swipeTimeout, listener);
} else {
return TySmartPosApiPluginPlatform.instance.readCard(
amount, tradeTime, tradeType, swipeTimeout, listener, index);
}
}