If you need to execute a piece of code after some time in Flutter you have to use Timer class . Timer class will allow specifying the time which you need to delay the execution and after that time period code will be executed inside the Timer.
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To Use Timer, import the following dart library: import ‘dart:async’;
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You can use Isolates to execute tasks in the background of your app (open or not). Essentially it uses Timer .25 Ara 2019
Read moreDo things flutter in background?
In Flutter, you can execute Dart code in the background . 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.
Read moreHow do I run a Timer in the background flutter?
“flutter run in background every second” Code Answer
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