[BUG] FadeRAWA allows invisible widgets to receive gesture events

[ddshd]

What is the bug?

On iOS (only tested on iOS) - Using the following code the "OpenStreetMap contributors" text is still tappable even through it does not show up on the screen. If a user is to tab in the general location of where the text would be the link opens

How can we reproduce it?

Using the following on a FlutterMap

                nonRotatedChildren: [
                  RichAttributionWidget(
                    attributions: [
                      TextSourceAttribution(
                        'OpenStreetMap contributors',
                        onTap: () => launchUrl(
                          Uri.parse('https://openstreetmap.org/copyright'),
                        ),
                      ),
                    ],
                  ),
                ],

Tap the "info" button to see where the text would be, close the widget, and tab in the region where the text would be if the widget was open.. This will cause the link to be launched

Do you have a potential solution?

Haven't looked deep into how the widget is shown/hidden but maybe it's done through opacity then the items would still interactive even though they are not seen

Platforms

iOS 16

Severity

Minimum: Allows normal functioning

[JaffaKetchup]

Hi @ddshd,

I can't reproduce this on Android, and I'm not sure why there would be platform specific behaviour here.

Screenrecorder-2023-07-17-06-58-45-792.1.mp4

Can you reproduce on iOS with the example app?

[ddshd]

Screen.Recording.2023-07-17.at.1.26.17.AM.mov

I should also note that we do not have the following set, we are just using the default value.. I commented the line out to reproduce it. Apologies.

flutter_map/example/lib/pages/home.dart

Line 127 in 3f18982

animationConfig: const ScaleRAWA(),

Edit: Updated video so that you can see the taps

[JaffaKetchup]

Ok, thanks for that extra information. I can now reproduce it.
The fade animation uses AnimatedOpacity, which I should've realised won't stop gesture events at 0%. The scale animation is not a problem because the container becomes 0x0px.