Struct ListenableBuilder 

pub struct ListenableBuilder;

Builds again whenever a Listenable says it changed — the reference’s ListenableBuilder.

A notifier asks for a rebuild when it tells its listeners, so what is built here is always built from the notifier’s present state: the notifier is kept so that the builder can read it, and to say in the tree what this part of it follows.

Implementations

impl ListenableBuilder

pub fn new<L: Listenable + 'static>( listenable: L, build: impl Fn(&BuildContext<'_>, &L) -> Box<dyn Widget> + 'static, ) -> Component

A component that builds from listenable, whenever it changes.