How to update notification avatars VC?

How to update notification of user's avatar vk?
I need to somehow get update notifications avatars ,if the avatar has been updated to meet code..
March 19th 20 at 08:27
3 answers
March 19th 20 at 08:29
Calculate the hash of the pictures have changed - perform code
March 19th 20 at 08:31
First, in any convenient way to store the information about the current avatar, and then at the right time to check for any changes in this information (store link, name, hash, etc.).
How? - Lionel.Jerde commented on March 19th 20 at 08:34
@Lionel.Jerde, - mae11 commented on March 19th 20 at 08:37
March 19th 20 at 08:33
Complement comments above.Also don't forget to put it on Kron
Why? If the user is inactive (does not go to the website), what the fuck needs its avatar, but the more updates - mae11 commented on March 19th 20 at 08:36

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