how to add a listner to a object in dart

Adorable Alpaca answered on July 20, 2021 Popularity 3/10 Helpfulness 1/10

answer how to add a listner to a object in dart

how to add a listner to a object in dart

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import 'dart:async';

class BaseModel {
  Map objects;
  StreamController fetchDoneController = new StreamController.broadcast();

  // define constructor here

  fetch() {
    // fetch json from server and then load it to objects
    // emits an event here
    fetchDoneController.add("all done"); // send an arbitrary event
  }

  Stream get fetchDone => fetchDoneController.stream;

}


// over in youre app file

main() {
  var model = new BaseModel();
  model.fetchDone.listen((_) => doCoolStuff(model));
}

Popularity 3/10 Helpfulness 1/10 Language dart

Source: stackoverflow.com

Tags: add dart object

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Contributed on Jul 20 2021

Adorable Alpaca

0 Answers Avg Quality 2/10

how to add a listner to a object in dart

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