ZF sun
551d6c103d
fix(diy-recommend-code): 修复小程序分享图仍为全屏截图
之前的方案是用户点"立即分享"按钮时,onShareClick 异步调
generateSharePoster() 生成海报后写 storage。但这有问题:
微信小程序 <button open-type="share"> 流程:
1. 用户点 button → 同步触发页面级 onShareAppMessage
2. onShareAppMessage 同步返回 shareData(必须含 imageUrl)
3. 微信用这个 imageUrl 展示分享面板
onShareClick 的异步 generateSharePoster 永远来不及,onShareAppMessage
读取 storage 时海报还没生成,所以微信用全屏截图。
修复:预生成海报。
- 在 loadCode 成功回调里,推荐码拿到后立即调 _prepareSharePoster()
异步生成海报,生成完写入 _recommendShareData storage
- loadQrcodeIfNeeded 成功回调里也再调一次,确保带二维码海报覆盖
不带二维码的占位版
_prepareSharePoster():
- #ifdef MP-WEIXIN 包住,仅小程序执行
- 调 generateSharePoster 拿 tempFilePath
- 写入 _recommendSharePoster 缓存 + _recommendShareData 当前值
- 用户点分享时,storage 已经有最新海报,onShareAppMessage
读取后返回 imageUrl,微信用这个图展示分享面板
2026-08-08 11:46:23 +08:00
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