nextDomain method

String nextDomain(
  1. DomainType type
)

当当前域名异常或不可用时，切换至下一个域名并返回

Implementation

String nextDomain(DomainType type) {
  int index = (_domainIndexMap[type.name] ?? 0) + 1;
  final host = _setDomainIndex(type, index);
  _log("切换域名：$type >>> $host");
  return host;
}