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Storing logs in a file (flutter)

I am using the package logger. I want to write all the logs printed in the console to a separate file(in release mode too). I want to be able to download this file at anytime from the app. How do I do it?

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2

Answers


  1. 0 
    class ConsoleOutput extends LogOutput {
  @override
  void output(OutputEvent event) {
    for (var line in event.lines) {
      print(line);
    }
  }
}

    enter code here

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  2. 0 
    import 'package:flutter/material.dart';
import 'package:logger/logger.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  // Create a logger instance
  final Logger logger = Logger();

  @override
  Widget build(BuildContext context) {
    logger.d('Debug message');
    logger.i('Info message');
    logger.w('Warning message');
    logger.e('Error message');

    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: Text('Logger Example'),
        ),
        body: Center(
          child: Text('Check the log file for messages'),
        ),
      ),
    );
  }
}


final logger = Logger(
  printer: PrettyPrinter(
    methodCount: 0,
    errorMethodCount: 8,
    lineLength: 120,
    colors: true,
    printEmojis: true,
    printTime: false,
  ),
  output: MultiOutput([
    ConsoleOutput(),
    FileOutput(),
  ]),
);
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