Improve Jetpack Compose TV scrolling experience

Scroll jank on low-end Android TV and Fire TV devices is a common but solvable problem. The core insight is that weak TV hardware has almost no frame budget headroom, so any work running during a scroll fling is potentially fatal. The most impactful fix is gating analytics observers and other non-rendering work on isScrollInProgress, using a settle debounce so processing only happens after the list stops moving. Additional wins come from moving observers off the main thread with Dispatchers.Default, pushing state reads down to leaf composables to minimize recomposition scope, and annotating tile models with @Immutable so Compose can skip unchanged tiles. Together these changes reduced jank from ~2.8% to ~0.1% and frame p99 from ~117ms to ~49ms on a representative low-end Fire TV device. Measurement should focus on tail metrics (jank %, overrun p99) rather than averages.

Nguồn: https://medium.com/@rahulbaboria123/why-your-jetpack-compose-tv-app-scrolls-fine-on-a-flagship-and-drops-frames-on-everything-else-ff8c6f5ed91c. 8sync News chỉ tóm tắt và dẫn link; bản quyền nội dung thuộc tác giả và nguồn gốc.

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