问题
I've seen some cool looking "windows" / "alerts" /whatever they are called. I wish I knew. Here's some examples of them:
These shouldn't be Apple exclusive, since I've seen 3rd party apps use them! I'd like to know what are these windows?
回答1:
It Custom UIActivityIndicator that you can found in this link
https://github.com/jdg/MBProgressHUD
MBProgressHUD is an iOS drop-in class that displays a translucent HUD with an indicator and/or labels while work is being done in a background thread. The HUD is meant as a replacement for the undocumented, private UIKit UIProgressHUD with some additional features.......
For mor information go to above Link
Thanks :)
回答2:
These is not apple specific controls. You can create them. The pop up shown in first image is very easy to make. You'll have to use 3 controls to make it.
- Background UIImageView with the image.
UIActivityIndicatoryUILabelwith whatever message you want to display.
You just have to load this UIImageView and Animate the UIActivityIndicatory to get this pop up. I've used these pop up in a lot of apps Apple don't object this.
回答3:
Your first view is a UIProgressHUD. Original Apple HUD is in a private API and it is not recommended to use it. http://cocoadev.com/wiki/UIProgressHUD
However, numerous implementations have appeared that emulate the original HUD. For one, have a look here: https://github.com/y0n3l/LGViewHUD though I am sure Google will give you a dozen similar implementations.
来源：https://stackoverflow.com/questions/14413645/alertview-alert-what-is-it