It’s been a while and there have been many developments.
First, there are some answers at How to create a service in Flutter to make an app to run always in background?
Also, flutter/Background processes will basically point you to medium/Executing Dart in the Background with Flutter Plugins and Geofencing (Sept 2018)
- which is a Geofencing sample that involves a partnership between isolates, native Android/iOS code via
MethodChannel
, andPluginUtilities.getCallbackHandle
(PluginUtilities)
Alas, there are many plugins available now: