android - Deferred deeplinking: Where do I fetch the referrer parameter in the application -

i trying implement deferred deeplink in after installing app google play, want navigate user specific page depending on referrer param in app google play url. read implementation here , here testing not successful , not able thread[gathread,5,main]: campaign found in logs. possible missing something, please if implemented same. second part callback after install app referrer url, can navigate user specific page in app after app installation.