meliorence / meliorence/react-native-snap-carousel
renderItem is called for entire list in data
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- Dominant language
- JavaScript
- Stars
- 10.5k
- Forks
- 2.3k
- PR merge metrics
- No merged PRs in 30d
Description
Question
Maybe I"m not understanding the documentation. I thought that renderItem would only get called sparingly, but it seems it's getting called for every item in my list which is killing my performance. Is there some way to minimize the render to a local area around the active index?
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the renderItem documentation and a minimal reproduction using a large list; the issue names no file or test to run. Done would mean establishing whether rendering every item is expected and identifying a supported way to limit rendering around the active index.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- javascript, react-native
- Domain
- mobile, performance
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100