Saving a list of widgets throws findRenderObject was called on null exception. about screenshot HOT 7 CLOSED

same +1

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Screenshot(
controller: screenshotController,
child: Component(),
),

wrapp your widget with Screenshot()

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@tehsunnliu how exactly do you need? do you want to take a screenshot of the entire list at once like this? or
screenshot of individual elements on some event like this?

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Hi, I wanted to capture individual elements in the listview, I wrapped ewach element in the listview with Screenshot widget but it doesn't work. I get same error as mentioned earlier.
Since in my case the listview won't contain many elements I chose not to use listview and created a column with the elements. This way I was able to take screenshots of each element individually.

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created list view like this :

ListView.separated( shrinkWrap: false, itemBuilder: (context, position) => getPost(position), separatorBuilder: (context, position) { return Container( height: 4, color: Colors.transparent, ); }, scrollDirection: Axis.vertical, controller: _scrollController, itemCount: feedList.length, )

and i wrapped each item with screenshot with different controller each time , actually i take one var in list and assigned controller to it if its null so this way every item has its different controller and while i am trying to capture it it gives me error like above

the same way i did this in different page and working file i couldn't find any difference in it ,

in my list there are too many items so i can't put columns there.

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any updates ? @SachinGanesh

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Had the same problem, I guess the easiest way is replacing the ListView with a SingleChildScrollView and a Column, you will lose the lazy loading but the screenshots will work.

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