flutter's AutomaticKeepAliveClientMixin doesn't keep the page state after navigator.push

Question

was testing AutomaticKeepAliveClientMixin and run into an issue, page loses state after navigator.push anyone knows this issue? any workarounds? be glad for any info, cheers

Answer 1

From the documentation on AutomaticKeepAliveClientMixin:

/// A mixin with convenience methods for clients of [AutomaticKeepAlive]. Used with [State] subclasses.

/// Subclasses must implement [wantKeepAlive], and their [build] methods must call super.build (the return value will always return null, and should be ignored).

So in your code, before you return the ListView just call super.build:

  Widget build(BuildContext context) {
    super.build(context);
    return ListView(..
  }