declineInvitation method
拒绝加好友的邀请 username
.
Implementation
Future<String?> declineInvitation(String username) async {
Map req = {'username': username};
Map result =
await _channel.invokeMethod(EMSDKMethod.declineInvitation, req);
EMError.hasErrorFromResult(result);
return result[EMSDKMethod.declineInvitation];
}