pub fn install_nav_store()Expand description
Install this prefs store as the app’s navigation-persistence store (docs/navigation.md), so a
selector or stack marked .restore(key)
remembers its state across launches (and across an Android process death, since the store is
disk-backed). Call once at startup, before the UI mounts. Nav keys are namespaced under a
day.nav. prefix, so .restore("mail") never collides with the app’s own set/get
keys.
day_part_prefs::install_nav_store();
// … day::launch(app) …