用这个库搭建了下载服务器，怎样在下载时候监听下载进度？

Description

Contributor guide

Tech stack

java

Domain

backend

Issue type

feature

DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.

3

Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.

half day

Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.

stale

ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.

unclear

Prerequisites

None

Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.

30

Research direction

Review the AndServer documentation and source code to determine if there is an existing API for monitoring download progress. If not, this would be a feature request to add a progress callback. Consider looking at similar Android networking libraries for reference.