# luckybilly/PreLoader

Pre-load data for android Activity/Fragment/View (android页面启动速度优化利器：在页面打开之前就预加载数据)

Repository: https://github.com/luckybilly/PreLoader
Canonical: https://ross.abutalabs.com/products/preloader
Homepage: https://medium.com/@billy.qiyi/preloader-3e2ff0d9279e
Language: Java
License: Apache-2.0
License Family: permissive
Last push: 2018-08-22T03:42:24+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 3167, "days_push": 2933, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1508, forks 173 (observed 2026-08-28T04:04:55.613296+00:00)

## What it is
PreLoader is an Android Java library that pre-loads data before an Activity, Fragment, or View opens, then delivers it to UI listeners once initialization completes. It speeds up app launch and page transitions by starting data loading as early as possible.

## Use cases
- speed up android activity launch time
- preload data before starting an activity
- prefetch data for home page in application oncreate
- reduce waiting time for complex ui initialization
- prefetch next page of recyclerview before load more
- load data in background and deliver to ui when ready

## When to choose
- you want to cut activity startup latency by starting data loads before navigation
- you need one data load fanned out to multiple listeners across activities
- you want a lightweight java library with custom thread pool support

## When to avoid
- you use kotlin coroutines or flow and prefer modern async primitives
- your project targets newer android architectures where viewmodel and lifecycle-aware loading suffice
- you need an actively maintained library with recent releases

## Facets
- artifact type: library
- maturity: maintenance
- function: concurrency, caching, developer-tools
- domain: mobile-development, android-tools, performance
- platform: jvm
- tags: android, preloading, app-launch-optimization, data-loading, activity-startup, mobile

## Member repositories
- luckybilly/PreLoader (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:55.613296+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 2026-08-30T04:32:33.634519+00:00, confidence not recorded.
  - readme: https://github.com/luckybilly/PreLoader (fetched 2026-08-28T04:04:55.613296+00:00, sha 8306c805cab6)
  - homepage: https://medium.com/@billy.qiyi/preloader-3e2ff0d9279e (fetched 2026-08-29T11:36:46.465555+00:00, sha bff03b230a65)
- Data as of 2026-08-30T08:39:29.467469+00:00.