we-plugin/we-cropper

选中图片后，只要移动图片就会黑屏，安卓苹果必现

Open

#41 opened on Jan 25, 2018

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 (7 comments) (0 reactions) (0 assignees)JavaScript (2,100 stars) (453 forks)batch import
help wanted

Description

Description

[问题描述：站在其它人的角度尽可能清晰地、简洁地把问题描述清楚] [Description of the issue] 选择图片后，拖动图片马上黑屏，点击生成是空白，安卓苹果必现

Environment

  • Platform: [开发者工具/iOS/Andriod/Web] 1.02.1801081

  • Platform version: [对应工具或者iOS或者Andriod的版本号] android 7.0，ios11

  • Wechat version: [微信版本号] 6.6.1.1220 Wechatlib1.9.5

  • we-cropper version: [在package.json里] "libVersion": "1.9.1",

  • other version: [如果是插件问题，请列出问题插件的版本号]

Reproduce

[如何重现问题]

手动拖动必现

Observed Results

[实际表现]

黑屏

Expected Results

[期望表现]

正常显示并选中

Relevant Code / Logs

// TODO(you): code or logs ohere to reproduce the problem

Contributor guide

Tech stack
javascript
Domain
frontend
Issue type
bug
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.
1-3 hours
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.
mostly clear
Prerequisites
WeChat Mini Program developmentcanvas
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
35
Research direction
Investigate the we cropper source code, particularly the image drag and reposition logic. Look at the canvas handling in the component. Check if there are any known fixes in later versions. The issue may be related to touch events or canvas redraw on movement. Also review the comments in the issue for any additional context.