Carousel RecyclerView
2024Interactive carousel layout manager for Android lists
01
Overview
An interactive horizontal carousel implementation for Android RecyclerViews. It features dynamic scale scaling, page snapping, auto-scrolling with play/pause functionality, indicator dots, and smooth transitions.
02
Problem
Standard horizontal RecyclerViews lack native visual focus for active items, requiring custom mathematical calculations during scroll to scale items, snap them to the center, and synchronize indicator positions.
03
Solution
Implemented a custom LayoutManager and scroll listener that computes offset distances from the center and applies dynamic scale and alpha transformations to items in real-time. Added snap helper integration for alignment.
04
Impact
Enables a highly engaging and interactive user experience for banner sliders and media cards, optimizing performance to maintain 60 FPS.
Project Info
Company
GitHub Open Source
Role
Creator & Maintainer
Duration
2024
Platform
Native Android
Language
Kotlin
Technologies Used
Role & Scope
Responsibilities
- Created custom scroll listener scaling computations
- Integrated SnapHelper and dot indicators
- Optimized drawing performance during scaling
Key Highlights
- Smooth dynamic item scaling and fading
- Snapping behavior for center focus
- Automated play/pause slideshow support
- Interactive indicator page sync
