脚手架后面的小部件

Question

I have a Widget behind the Scaffold that I made visible by setting Scaffold's backgroundColor to transparent.

However, the Scaffold still absorbs the pointer event, but I want the background widget to consume the pointer event.

EDIT:

I cannot put the widget in the Scaffold since it is a platform widget (map view) and I have to make sure it's the same instance across the whole app, otherwise funny things happen... also, page transitions should happen in front of the widget.

Answer 1

IgnorePointer(
  ignoring: true,
  child: Scaffold(
    ...
  ),
);

Answer 2

I solved the issues with two SingleChildRenderObjectWidgets.

One is called “Hole” and just a marker in the widget tree. The other one is called “Sieve” and checks in its hitTest if a Hole was hit below it.

If a Hole was hit, the hitTest is ignored.

Works perfectly!