Embedding multiple Flutter views in native code

[Yves Delcoigne]

Hello

I'm evaluating Flutter to be an option for future projects, or new features on existing projects.

I'm wondering how we can add multiple FlutterViews to our native code. Currently, I only find the example in the GitHub repository, which has a single FlutterView. This starts with the main method in main.dart, but is there a way to have multiple startup methods and choose between them?

Kind regards

Yves DelcoigneMobile Developer In The Pocket Sassevaartstraat 46/401, 9000 Ghent, Belgium +32 9 234 34 25 +32 474 25 19 32 www.inthepocket.mobi @itpocket

[Eric Seidel]

My understanding from your mail is you're asking two separate questions:

1.  Is is possible to embed multiple FlutterViews in your App.

A: Yes.  It's not a path that we've optimized for yet.  Most of our tooling (e.g. the `flutter` command line tool) expects to work with a single FlutterView (e.g which FlutterView should the tool send new code to when doing a Hot Reload?).  But it's certainly possible.  I've seen demos written with 10s or 100s of FlutterViews inside them as a stress test for example.

2.  Is it possible to start FlutterViews with different main() methods.

A: My understanding is this is possible, yes.  The exact calling apis would be different on iOS vs. Android, but the general idea is that when the FlutterView is initialized a Dart Snapshot is provided.  It should be possible to bundle multiple Snapshots (or whole .flx files) in your application and switch between them.  I don't know the exact calls off the top of my head, but they should be findable in https://docs.flutter.io/javadoc/ or https://docs.flutter.io/objcdoc/

Again, neither of these paths are particularly well paved, but both should be technically possible.  Others on this list likely know the exact details of each better than i do.

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