Struct SnackbarMessage 

pub struct SnackbarMessage<State: 'static> { /* private fields */ }

A declarative snackbar message. Built via snackbar, shown via SnackbarController::show. See the module docs.

Implementations

impl<State: 'static> SnackbarMessage<State>

pub fn action<F: Fn(&mut State) + 'static>( self, label: impl Into<String>, on_action: F, ) -> Self

Attach a single action button, labeled label. Pressing it fires on_action and dismisses the message immediately — Flutter’s own stock SnackBarAction behavior (flutter/material/snack_bar.dart‘s _SnackBarActionState._handlePressed, which always closes the snackbar right after invoking its callback); this crate’s own upstream reference has no action-press dismiss logic of its own to port (its onAction callback is the only thing it fires — see the module docs’ Queue/replace rule for the parallel gap in that file), so this follows the wider platform convention instead.

pub fn duration(self, duration: Duration) -> Self

Override the auto-dismiss hold duration. [DEFAULT_DURATION] (4s) unless set.

pub fn dismissible(self) -> Self

Show a close (×) icon that dismisses the message without firing on_action. Off unless called — the upstream reference has no close affordance at all (see the module docs).