I have already referred this link https://github.com/twitter/twitter-text/tree/master/objc but I think this is not updated. It still shows twitter-text with 140 characters and also it is in objective-c. It do not provide proper count of some special characters same as in twitter official. It would be of great help if someone can please help with the latest 280-character twitter count API for iOS in swift. Thanks in advance.
Are you using the v2 version of the parsing configuration file? That one has the updates for 280. We don't provide an official Swift implementation, but there's an unofficial one here https://gist.github.com/hebertialmeida/d868bd58efe8b5240e4ef8b542107099