如何在 iPhone 上使用活动指示器视图? [英] How to use activity indicator view on iPhone?

问题描述

活动指示器视图在许多应用程序中都很有用.关于如何在 iPhone 上添加、激活和关闭活动指示器视图的任何想法?

An activity indicator view is useful in many applications. Any ideas about how to add, activiate and dismiss an activity indicator view on iPhone?

这里欢迎所有用于此的方法.

All the methods for this are welcomed here.

推荐答案

创建:

spinner = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];
[spinner setCenter:CGPointMake(kScreenWidth/2.0, kScreenHeight/2.0)]; // I do this because I'm in landscape mode
[self.view addSubview:spinner]; // spinner is not visible until started

开始:

[spinner startAnimating]; 

停止:

 [spinner stopAnimating];

最终完成后，从视图中移除微调器并释放.

When you're finally done, remove the spinner from the view and release.

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