Stream Example In Flutter

Stream Example In Flutter :

Stream Example In Flutter
import 'dart:async';
import 'dart:convert';
import 'dart:io';

main() {
  var data = [1, 2, 3, 4, 5]; // some sample data
  var stream = new Stream.fromIterable(data); // create the stream

  // subscribe to the streams events
  stream.listen((value) {       //
    print("Received: $value");  // onData handler
  //Flutter stream listen
  stream.listen((value) => print("listen: $value"),
      onError: (err) => print("error: $err"), onDone: () => print("done"));

  //File read flutter using Stream transform
  File file = new File("D://FlutterTutorial.txt");
      .transform(utf8.decoder) // use a UTF8.decoder
      .listen((String data) => print(data), // output the data
          onError: (error) => print("Error, could not open file"),
          onDone: () => print("Finished reading data"));

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