You can find details about this sample project from the link below
English Article = https://medium.com/huawei-mobile-developers/android-appgallery-connect-auth-service-w-huawei-id-and-anonymous-account-29232e8a1e40
Turkish Article = https://medium.com/huawei-mobile-developers-tr/android-appgallery-connect-auth-service-huawei-id-ve-anonymous-651cbf86ad4b