addContact method
添加联系人username
with reason
.
Implementation
Future<String?> addContact(
String username, [
String reason = '',
]) async {
Map req = {'username': username, 'reason': reason};
Map result = await _channel.invokeMethod(EMSDKMethod.addContact, req);
EMError.hasErrorFromResult(result);
return result[EMSDKMethod.addContact];
}