How to record data for GVINs with phone?

[Chanchanhan]

@shaojie
Hello, Your work is pretty impressed, it works perfect on pc.
Next step I'd like to run your algorithm on android, however, it seems hard to get same data as you provided for GVINS.
The Gnss Measurement offerd by Google is subset of what GVINs need.
Have you teams tried to run GVINS on phone? Do you have tools for collect GNSS data needed by GVINs with phone?
Thanks in advance!