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javascriptflutter
ctrinh
ctrinh

Reputation: 425

How to fetch data (method call) every five seconds in Flutter?

In JavaScript, I could constantly fetch data without an explicit request from the user by calling a function fetchData() every five seconds using setInterval(function() { fetchData() }, 5000); and this is an incredibly useful tool for me. Is there a similar equivalent in Flutter?

Upvotes: 4

Views: 7728

Answers (2)

Shreya Tabjul
Shreya Tabjul

Reputation: 56

Timer() and Timer.periodic() work the same way. They take duration as a parameter and an optional callback function.

 Timer(const Duration(seconds: 5), () {
  // these lines would be executed every 5s.
});

Upvotes: 0

Jaswant Singh
Jaswant Singh

Reputation: 10759

This can be achieved by something like this.

import 'dart:async';

main() {
  const fiveSeconds = const Duration(seconds: 5);
  // _fetchData() is your function to fetch data
  Timer.periodic(fiveSeconds, (Timer t) => _fetchData());
}

Upvotes: 7

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