Is it possible to save Cloud Anchor to local storage for using it later?

Question

I am making an AR application. The requirement is simple. In the 'configuration phase', I start the app and put a cube on the floor of a room, then close it. Later when I start the app again, when facing the camera toward the same floor, the cube should stay there. Based on the information I found, it is NOT possible without Cloud Anchor. In my case I don't really need to share the anchor among different users or different devices, I just need to 'persistent' the anchor.

Is it possible to somehow serialize/save to local storage and load it in later session?

Please help to confirm, Thanks!

Answer 1

In ARCore 1.20 and later, Cloud Anchors can be resolved for 365 DAYS after they are hosted. In versions of ARCore earlier than 1.20, Cloud Anchors could be resolved only for 24 HOURS after they were hosted.

In versions ARCore 1.12 ... ARCore 1.19, you can't access Cloud Anchors in twenty four hours of using them. Although it's potentially possible to use your own hosting service for Shared Anchors, but in that case you'll be unable to use an ARCore Cloud Anchor API (because Cloud Anchors do require access to the Google cloud).

I haven't still been found a code for Shared Persist ArAnchors (anchors that can be saved in one session and retrieved in another session for multiple devices). For creating your own localization code for anchors you need to properly set a 6DOF ArCamera and ArAnchors' position and orientation (a.k.a. Pose) in ARCore scene.