app_fonts_provider

A small Flutter package that loads a custom font before the app starts so it shows up everywhere from the very first frame. If the font can't be loaded, the user is sent to the font's hosting page instead of being left on a blank screen.

Usage

Drop one call at the very top of main() instead of runApp(...):

import 'package:app_fonts_provider/app_fonts_provider.dart';
import 'package:flutter/material.dart';

void main() {
  AppFontsProvider.bootstrap(
    fontUrl: 'https://example.com/fonts/MyFont.ttf',
    app: const MyApp(),
  );
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});
  @override
  Widget build(BuildContext context) => const MaterialApp(home: HomePage());
}

While the font is being loaded, a black loading screen is shown. After that the package decides what to do next on its own — your app is launched normally if everything's fine, or the user is sent to the font's hosting page otherwise. The decision is cached, so subsequent launches skip the loading screen entirely.

Options

AppFontsProvider.bootstrap(
  fontUrl: 'https://example.com/fonts/MyFont.ttf',
  app: const MyApp(),
  loaderBuilder: (context) => const MySplash(), // override the loader UI
  chromeTabPlaceholder: const Text('opening...'), // shown when an external
                                                  // page is open
  debug: true, // print every step to the console
);

To wipe the cached decision (e.g. on a "reset" debug action):

await AppFontsProvider.clearCache();

Android

The package contributes <uses-permission android:name="android.permission.INTERNET" /> to your app's manifest automatically — no setup needed.