你可以用它在加载期间活动指示器。

You can use it as activity indicator during loading.

youdao

由于现在已经从服务器接收完数据，请求就完成了，可以关闭网络活动指示器了，如清单4所示。

Because you are done receiving data from the server at this point, your request is complete and you can turn off the network activity indicator, as listing 4 demonstrates.

youdao

这可以在任何地方，但是首先模型（mockup）要在右上角活动指示器（throbber）的右侧显示该通知。

This could be anywhere, but the first mockups show it next to the throbber.

youdao