// 退出当前房间
await trtcCloud.exitRoom();

onRtcListener(type, param) async {
    if (type == TRTCCloudListener.onExitRoom) {
      if (param == 0) {
          log('Exit current room by calling the 'exitRoom' api of sdk ...');
      } else if (param == 1) {
          log('Kicked out of the current room by server through the restful api...');
      } else if (param == 2) {
          log('Current room is dissolved by server through the restful api...');
      }
    }
}