addGroundOverlay创建自定义图片图层,可以使用base64图片链接吗?图片链接作为背景可以生效,但是放到地图上就无法显示。真机调试也是无法显示。是不是图片连接格式的问题?附一个图片链接。emmm
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用网络的url正常吗?