Flutter - How to get the build number of the app?

I understand the usage of package_info_plus package and I am able to get the version number correctly.

The issue here is that the Build number of our application is decided by Github Runner on release as follows:

--build-number=${{github.run_number}}

I want to display this number in-app. Is it possible?

    return FutureBuilder(
        future: PackageInfo.fromPlatform(),
        builder: (context, snapshot) {
          if (snapshot.hasData) {
            return Column(
              crossAxisAlignment: CrossAxisAlignment.center,
              children: [
                design.BodyText(context.localized.appVersion),
                design.BodyText(
                  "${snapshot.data!.version}(${snapshot.data!.buildNumber})",
                ),
              ],
            );
          }
          return const SizedBox();
        })

The build number here is from pubspec.yaml. I would want the Github runner based build number to be shown.

Assuming you're using Github Actions to build and deploy your app, you could edit your yml file to put the build number in your env variables. For example :

name: PRODUCTION

env:
  APP_VERSION: ${{github.ref_name}}
  APP_BUILD_NUM : ${{github.run_number}}

on:
  push:
     ...

And then from your flutter app, you could get it with :

String appBuildNum =
const String.fromEnvironment('APP_BUILD_NUM', defaultValue: '123');