How to show Blurred image before downloading(like in whatsapp) in ios? -


i making chat application image sending , downloading. want animation in whatsapp. so, how show blurred image? image downloaded server. please me.

scale image down small size 8x8 pixels. send data client. should not more 4 * 8 * 8 = 256 b or 0.25 kb in size, sending client not problem no matter how slow client's connection speed is.

then scale received 8x8 image resolution of preview box (for example 256x256). shouldn't need upsample 8x8 image if preview box uiimageview (see link below). downsampling , successive upsampling of image "blurs" image.

to understand how can resample/rescale image in ios, check this link. (i can't in performing task ios, since not ios developer.)


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