I’ve mentioned the AFNetworking library that includes methods for asynchronously downloading images from a URL.
Here’s a UIView category for displaying images from the web from Xmartlabs that presents the users with a nicely styled progress indicator while the image is downloading called XLRemoteImageView.
The nice thing about XLRemoteImageView is that you don’t need to use another external library or work in a progress indicator. With XLRemoteimageView you can simply specify the image URL, a placeholder image, and optionally set a callback in case the download fails.
Here’s an image from the readme showing XLRemoteImageView in action:
You can find XLRemoteimageView on Github here.
A nice library if you want to add in remote image downloading and display.
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