How to keep my flutter app running in the background when close?

Question

I am building an app and I want it to show up in the user's notification bar and run in the background even when it's closed. Similar to "KWGT Kustom Widget Maker".

I've tried looking for libraries that allow this, but I can only find those related to java. Are there any available for Dart/Flutter or any other workaround? I am only targeting android devices.

Answer 1

The mechanism for this feature involves setting up an isolate. Isolates are Dart’s model for multithreading, though an isolate differs from a conventional thread in that it doesn’t share memory with the main program. You’ll set up your isolate for background execution using callbacks and a callback dispatcher.

For more information and a geofencing example that uses background execution of Dart code, see Executing Dart in the Background with Flutter Plugins and Geofencing, an article in the Flutter Publication on Medium. At the end of this article, you’ll find links to example code, and relevant documentation for Dart, iOS, and Android