How to show blurry image before loading (e.g. in whatsapp) in ios?

Question

I am making a chat application to send and upload images. I want to do some animation, like in WhatsApp. So how to show blurry image? My image is being downloaded from the server. Please help me.

Answer 1

Enlarge the image to a very small size, for example, 8x8 pixels. Send this data to the client. It should not be more than 4 * 8 * 8= 256 B or 0.25 KB, so sending it to the client will not be a problem no matter how slow the speed of connection with the client.

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Answer 2

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