addContact method Null safety
Adds a new contact.
Param username
The user to be added.
Param reason
(optional) The invitation message.
Throws A description of the exception. See {@link EMError}.
Implementation
Future<void> addContact(
String username, [
String reason = '',
]) async {
Map req = {'username': username, 'reason': reason};
Map result = await _channel.invokeMethod(ChatMethodKeys.addContact, req);
try {
EMError.hasErrorFromResult(result);
} on EMError catch (e) {
throw e;
}
}