# eschao/android-PageFlip

3D Style Page Flip on Android

Repository: https://github.com/eschao/android-PageFlip
Canonical: https://ross.abutalabs.com/products/android-pageflip
Language: Java
License: Apache-2.0
License Family: permissive
Topics: android, flip-animating, opengl-es, reading-program, java, pageflip, pageturnning
Last push: 2024-04-11T03:07:41+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 3643, "days_push": 874, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1748, forks 267 (observed 2026-08-28T04:05:30.923283+00:00)

## What it is
An Android library that implements 3D-style page flip animations using OpenGL ES 2.0. It supports single and double page modes with configurable shadows, fold effects, and animation duration for reading applications.

## Use cases
- add realistic page turn animation to an Android e-book reader
- create a 3D page flip effect in a magazine or catalog app
- implement swipe-to-flip page transitions with OpenGL on Android
- render single or double page flip views in a reading program
- customize page fold shadows and flip animation duration on Android

## When to choose
- you need a realistic 3D page curl/flip effect on Android
- your app is a reader, magazine, or catalog with page-based content
- you want GPU-accelerated page turning via OpenGL ES 2.0
- you need configurable flip visuals like shadows, mesh pixels, and animation duration

## When to avoid
- you need a cross-platform (iOS/web) page flip solution
- your project is not Android/Java based
- you only need simple 2D transitions available in standard Android APIs
- you require actively developed support for the latest Android versions beyond what is tested

## Facets
- artifact type: library
- maturity: maintenance
- function: animation, graphics, ui-components
- domain: mobile-development, android-tools, graphics
- platform: jvm
- tags: opengl-es, page-flip, page-turn, e-book-reading, 3d-animation, glsurfaceview, android

## Member repositories
- eschao/android-PageFlip (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:30.923283+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:28:49.838750+00:00, confidence not recorded.
  - readme: https://github.com/eschao/android-PageFlip (fetched 2026-08-28T04:05:30.923283+00:00, sha a14e658fc0da)
- Data as of 2026-08-30T08:39:29.467469+00:00.