Comprehensive Guide for Developers: UI & SDK Integration, Configuration, and API Reference
A live reference to one shown snackbar, returned by show. Writing progress or message updates it in place; every write is ignored once it has closed, so a late tick from a finished job cannot resurrect it.
show
progress
message
Readonly
true once it has left the screen — by timeout, close button, action, or close().
true
close()
0–100 (clamped). Reads 0 on a snackbar shown without progress.
0
100
A live reference to one shown snackbar, returned by
show. Writingprogressormessageupdates it in place; every write is ignored once it has closed, so a late tick from a finished job cannot resurrect it.