public interface HomeChangeListener

Told when a watched Trait changes value.

Attached by SmartHome.subscribe(SubscriptionRequest, HomeChangeListener). Deliveries arrive on the EDT, so a listener may touch components directly.

Nothing wakes your app for these

On every backend, changes arrive only while your app is running. HomeKit delivers HMAccessoryDelegate callbacks to a foreground app, and the Google Home APIs need a live signed-in client – it is the home hub, not your app, that reacts to a sensor while the phone is asleep. Where TraitSubscription.isPushDelivery() answers false, changes arrive only when you call SmartHome.drainChanges().