onTap not firing for ListView elements

Question

I've got a ListView in which all the elements are wrapped with a GestureDetector. It seems onTap doesn't fire whilst the ListView is scrolled and is animating. It only fires when the list is perfectly still/doesn't move...

ListView.separated( itemCount: count, physics: BouncingScrollPhysics(), separatorBuilder: (context, _) => VSpace.xxl, itemBuilder: (ctx, idx) => GestureDetector( onTap: () { // DO somethihng }, child: SomeChild(idx), ), )

I vaguely remember seeing a GitHub issue about this some months ago but I can't find it.

omar hatem · Accepted Answer · 2021-12-30 13:24:51Z

That's the expected behavior.

if the page is scrolling and you tap on the screen it stops the scrolling behavior first and then if you tapped on an item it will fire the gesture detector's onTap.

you can try in any other app and you will see this behavior, Facebook, Instagram, etc...

Good point. Strangely, in my case, the first press pauses the scrolling more than stoping it. It ends up needing 2-3 touches for it to fully stop and register the tap. But yes, you're totally on point

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