Meta issue for the difficulty of using assets with Flutter

[matanlurey]

I wanted to try and highlight how several outstanding issues related to assets really hurt productivity:

• Including all the files in a directory is only supported for the current package:

  flutter:
    assets:
      - assets/country_flags/ # OK
      - packages/country_flag_icons/assets/ # Silently does not work

  Related: Does not includes all the assets under a folder from external package #22944

• Flutter packages (i.e. not apps) cannot declare their own assets:

  # A package I'd like to host on Pub or GitHub.
  name: country_flag_icons
  
  flutter:
    assets:
      - assets/country_flags/

  name: my_app
  
  dependencies:
    country_flag_icons: ^1.0.0

  ... will result in runtime asset errors. See above issue for why this is difficult to workaround.

  Related: Flutter packages containing assets are hard to manage and not intuitive #22921

• Asset inclusion only works by individual file or individual folder

  # Let me write...
  flutter:
    assets:
      - assets/icons/**.png

  Related: Support wildcard/globs in flutter: assets: YAML #27801

• Assets added to a directory are not picked up during hot reload/restart:

  ... leading the need of killing and restarting the app from scratch when working with assets.

  Related: Trigger assets scan again if a file is added/removed to scanned folder #18896

• Assets are not usable in (non-driver) tests:

  ... meaning that testing packages that provide assets is very difficult.

  Related: Make assets available during tests. #12999

[escamoteur]

Just one addition, packages can't define assets that are not inside the lib folder so that you have to do it like this:

   - packages/my_project/assets/image.png

[bitsydarel]

Today I came across this at work, is there any update on this issue ?

[lavahasif]

@escamoteur solved the problem

[om-ha]

Any update on this please?

[panda-p1]

Is here any update?

[skiryuk]

any update?

[subzero911]

Probably related:
#119562
I declare fonts in a package's pubspec, but the main app does not see these fonts, unless I explicitly add all of them to the pubspec too.

I suggest adding a directive for importing all fonts from the package:

fonts:
  import packages/mts_granat # imports all fonts from its pubspec