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ScrollablePositionedList: every item gets rebuilt when adding an entry at 0 #67

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imtoori opened this issue Feb 14, 2020 · 2 comments
Open

ScrollablePositionedList: every item gets rebuilt when adding an entry at 0 #67

imtoori opened this issue Feb 14, 2020 · 2 comments
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p: scrollable_positioned_list Related to package:scrollable_positioned_list SPL-performance ScrollablePositonedList performance issues

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@imtoori
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imtoori commented Feb 14, 2020

Every widget children widget gets rebuilt when adding a child at position 0.

If I try to add a child at the end of the list only the new widgets are built.

I tried to add a key, but it doesn't help.
@jamesderlin jamesderlin added the p: scrollable_positioned_list Related to package:scrollable_positioned_list label Apr 16, 2020
@tarobins tarobins added the SPL-performance ScrollablePositonedList performance issues label Apr 29, 2020
@tomalabaster
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Sounds like findChildIndexCallback needs to be implemented. https://api.flutter.dev/flutter/widgets/SliverChildBuilderDelegate/findChildIndexCallback.html

@marynovskyi
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Faced the same issue. Is there any updates?

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p: scrollable_positioned_list Related to package:scrollable_positioned_list SPL-performance ScrollablePositonedList performance issues
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@tarobins @tomalabaster @marynovskyi @jamesderlin @imtoori