resolveDisplayMediaUrl method

String? resolveDisplayMediaUrl(
  1. Message msg
)

按策略解析展示用媒体 URL（蜂窝优先缩略图）

Implementation

String? resolveDisplayMediaUrl(Message msg) {
  final quality = mediaPolicy.preferredDisplayQuality(msg);
  return mediaPolicy.resolveMediaUrl(msg.extra, quality: quality);
}