Android开发人员不得不收集的工具类集合 | 支付宝支付 | 微信支付（统一下单） | 微信分享 | Zip4j压缩（支持分卷压缩与加密） | 一键集成UCrop选择圆形头像 | 一键集成二维码和条形码的扫描与生成 | 常用Dialog | WebView的封装可播放视频 | 仿斗鱼滑动验证码 | Toast封装 | 震动 | GPS | Location定位 | 图片缩放 | Exif 图片添加地理位置信息（经纬度） | 蛛网等级 | 颜色选择器 | ArcGis | VTPK | 编译运行一下说不定会找到惊喜

A Java library for zip files and streams

A fully open source app to extract rar, zip, tar, bz2, gz, 7z, xz, jar and z etc (encrypted .zip & .7z supported)

Statistics for https://klavogonki.ru/. Also contains code for legacy competitions parser.

Java 25 + Maven CLI tool that extracts and merges fragmented ZIP archives (.zip/.z01) into a single output file with JSON-based success/error reporting for automation workflows.

zip4j