How to run on a schedule by flutter-CodePudding

I want to create timer app on flutter, I can't know how to schedul of run. If you know how to do that,Would like to tell me. This sentence was transrated,so I'm sorry if mistaken.

CodePudding user response：

You can try this:

void main() {
  scheduleTimeout(5 * 1000); // 5 seconds.
}

Timer scheduleTimeout([int milliseconds = 10000]) =>
    Timer(Duration(milliseconds: milliseconds), handleTimeout);

void handleTimeout() {  // callback function
  // Do some work.
}

This function waits 5 seconds before it calls the callback handleTimeout.

Refer to this: https://api.flutter.dev/flutter/dart-async/Timer-class.html

CodePudding user response：

You might try to use the work manager plugin. workmanager. Even when the app is closed, it will execute task even when app is closed. For ex:

void callbackDispatcher() {
  Workmanager().executeTask((task, inputData) {
    print("Native called background task: $backgroundTask"); //simpleTask will be emitted here.
    return Future.value(true);
  });
}

void main() {
  Workmanager().initialize(
    callbackDispatcher, // The top level function, aka callbackDispatcher
    isInDebugMode: true // If enabled it will post a notification whenever the task is running. Handy for debugging tasks
  );
  Workmanager().registerOneOffTask("task-identifier", "simpleTask");
  runApp(MyApp());
}

CodePudding user response：

You can use Timer function to achieve schedule