import 'dart:typed_data';

import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:http/http.dart' as http;

Future<ByteData> fetchFont() async {
  final response = await http.get(
      'https://raw.githubusercontent.com/google/fonts/master/ofl/montserrat/Montserrat-Light.ttf');

  if (response.statusCode == 200) {
    return ByteData.view(response.bodyBytes.buffer);

  } else {
    // If that call was not successful, throw an error.
    throw Exception('Failed to load font');
  }
}

void main() {
  var fontLoader = FontLoader('Montserrat');
  fontLoader.addFont(fetchFont());
  fontLoader.load().then((_) {
    PaintingBinding.instance.handleSystemMessage({'type': 'fontsChange'});
  });

  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Custom Fonts',
      home: MyHomePage(),
    );
  }
}

class MyHomePage extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: Text('Custom Fonts')),
      body: Center(
        child: Text(
          'Montserrat is displayed here Montserrat is displayed here Montserrat is displayed here Montserrat is displayedhere Montserrat is displayed here Montserrat is displayed here Montserrat is displayed here Montserrat is displayed here Montserrat is displayed here Montserrat isdisplayed here Montserrat is displayed here Montserrat is displayed here Montserrat is displayed here Montserrat is displayed here Montserrat is displayed here Montserratis displayed here Montserrat is displayed here Montserrat is displayed here Montserrat is displayed here Montserrat is displayed here Montserratis displayed here Montserrat is displayed here',
          style: TextStyle(fontFamily: 'Montserrat'),
        ),
      ),
    );
  }
}