getKeyCheckValue method
Implementation
void getKeyCheckValue(int i, String s) async{
Map<String, String> params = Map<String, String>();
StringBuffer index = StringBuffer();
index.write(i);
params['keyIndex'] = index.toString();
print("keyIndex:"+i.toString());
params['keyType'] = s;
await _methodChannel.invokeMethod('getKeyCheckValue',params);
}