FBProfilePictureView loading with delay

Question

我正在使用用户ID设置FBProfilePictureView，但这需要一段时间，所以我想知道是否有什么指示加载完成的时间，因此我可以显示一个ActivityIndi​​cator

Answer 1

You should take a look at SDWebImage librabry , you will be able to put a placeholder while loading your picture or add a progress indicator. I think everything you need is there. Hope it helps.

Answer 2

There is no delegate or something similar in FBProfilePictureView that indicates when the image finished loading. Looking at the source code ( https://github.com/facebook/facebook-ios-sdk/blob/master/src/UI/FBProfilePictureView.m ) it seems like it should be fairly easy to fork the repo and add a few changes to notify you when the HTTP request has finished.