⚡ Bolt: Optimize SliverGrid with findChildIndexCallback #25
Conversation
Adds `findChildIndexCallback` to the `SliverChildBuilderDelegate` in the `MediaGridSliver` widget. This provides a more efficient way for Flutter to find widgets when the list is updated, improving performance for large or dynamic grids. Also updates the `MediaCard` key to `ValueKey` to ensure the callback can correctly cast and use the key.
|
👋 Jules, reporting for duty! I'm here to lend a hand with this pull request. When you start a review, I'll add a 👀 emoji to each comment to let you know I've read it. I'll focus on feedback directed at me and will do my best to stay out of conversations between you and other bots or reviewers to keep the noise down. I'll push a commit with your requested changes shortly after. Please note there might be a delay between these steps, but rest assured I'm on the job! For more direct control, you can switch me to Reactive Mode. When this mode is on, I will only act on comments where you specifically mention me with For security, I will only act on instructions from the user who triggered this task. New to Jules? Learn more at jules.google/docs. |
💡 What
Added
findChildIndexCallbackto theSliverChildBuilderDelegateinMediaGridSliverand updated the childMediaCardto use aValueKey.🎯 Why
When a list is rebuilt, Flutter needs to find the new position of existing widgets. Without this callback, it performs a less efficient search. This callback provides a direct lookup on the underlying data model, speeding up the reconciliation of the widget tree.
📊 Impact
Reduces the cost of rebuilding the media grid, especially for large lists or when items are frequently added, removed, or reordered. This leads to smoother scrolling and faster UI updates. The complexity is reduced from a potentially expensive element tree traversal to a direct
O(N)search on theitemslist, which is a net performance gain.🔬 Measurement
The improvement can be observed by profiling the application with Flutter DevTools. When scrolling or filtering a large media library displayed with
MediaGridSliver, there should be fewer dropped frames and a lower build time for the grid widget.PR created automatically by Jules for task 5421563159739691719 started by @Doezer