Btukfyl

Situation: i am developing an app, which manages HomeKit accessories. For example i do that:

1. Accessory is power on, and i see it via app. Also in foreground mode HMAccessoryDelegate method:

func accessoryDidUpdateReachability(HMAccessory)

works fine and i can handle status of my accessory.

2. I switch app to background mode.




3. I turn off accessory (i mean completely power off) so it must be unreachable.




4. I switch app to foreground mode, but accessory is still reachable.
   method func accessoryDidUpdateReachability(HMAccessory) — not called.
   value accessory.isReachable not updated.

Example of code when i go to foreground:

func applicationDidBecomeActive(_ application: UIApplication) {  

    if let home = HomeStore.sharedStore.home {  

        for accessory in home.accessories {  

            print(accessory.isReachable) //not updated  

            for service in accessory.services {  

                for characteristic in service.characteristics {  

                    characteristic.readValue { (error) in //updated  

                        if error == nil {  

                            let notification = Notification(name: Notification.Name(rawValue: "UpdatedCharacteristic"))  

                            NotificationCenter.default.post(notification)  

                        }  

                    }  

                }  

            }  

        }  

    }  

}

Question: how to update isReachable values of accessories, when i come back from background mode to foreground?