android / android/nowinandroid

[Bug]: Redundant full screen recompositions on UI state change

Open
#1,168 2 comments 0 reactions 0 assignees View on GitHub
bug
Dominant language
Kotlin
Stars
21.8k
Forks
4.6k
Avg merge
19h 20m
Merged PRs (30d)
2

Description

### Is there an existing issue for this?

- [X] I have searched the existing issues

### Is there a StackOverflow question about this issue?

- [X] I have searched StackOverflow

### What happened?

When performing any sort of UI action that results in a state change, for example, toggling one of the options in the interests tab, the entire UI is recomposed even though only one item in the list needs to be recomposed. You can reproduce this easily by checking the layout inspector with the show recompositions toggle on and toggling one of the options in the interests tab.

### Relevant logcat output

_No response_

### Code of Conduct

- [X] I agree to follow this project's Code of Conduct

Contributor guide

Open the contributing guide

Research direction

Start by reproducing the issue in the interests tab and use Android Studio's Layout Inspector with the show recompositions toggle enabled. Trace the UI state change from the affected option and identify why the full UI recomposes; done means toggling one option recomposes only the necessary list item.

Written by the indexing model from the issue text.

Assessment

Tech stack
android, kotlin
Domain
mobile, performance
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
30/100

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