I'm pretty new to Android / mobile programming.
Is it possible to create an Android App that talks directly to the Google Photos API without my own server / backend? I see most of the examples have a Java server, but for the simple app I'm trying to build, I don't want/need the extra server.
In particular, the part I'm struggling with is obtaining Credentials used in this class [1] from Android. I can't figure out how to get a refresh token, and the included code on github does not run on Android (only on a server).
Thanks!