readMifareCard method
Implementation
void readMifareCard(String mifareCardType,String block,int timeout) async{
Map<String, String> params = Map<String, String>();
params['MifareCardType'] = mifareCardType;
params['block'] = block;
params['timeout'] = timeout.toString();
await _methodChannel.invokeMethod('readMifareCard',params);
}