setMasterKey method
Implementation
void setMasterKey(String key, String checkValue, int keyIndex) async{
Map<String, String> params = Map<String, String>();
params['key'] = key;
params['checkValue'] = checkValue;
StringBuffer index = StringBuffer();
index.write(keyIndex);
params['keyIndex'] = index.toString();
await _methodChannel.invokeMethod('setMasterKey',params);
}