getCacheFilePathWithVid method
根据vid获取缓存的文件名
Implementation
Future<dynamic> getCacheFilePathWithVid(
String vid, String format, String definition) async {
var map = {'vid': vid, 'format': format, 'definition': definition};
return FlutterAliPlayerFactory.methodChannel
.invokeMethod("getCacheFilePathWithVid", wrapWithPlayerId(arg: map));
}