How to inform Picasso that the image in the link changed?

Question

im using picasso library to load images. However in my application, users can have profile pictures and the link for the image is constant... Picasso has no clue that the image has changed...

I tried using : .skipMemoryCache() but it wasn't an ideal solution...

Is there a way to check if there's a new picture in the same link using picasso? Thanks!

Please refer this one http://stackoverflow.com/a/36639357/4749098 — Anand Savjani, Dec 06 '16 at 12:18

score 4 · Accepted Answer · answered Aug 22 '14 at 22:14

Apparently, there is no API in the current (2.3.2) version of Picasso to achieve this (but it is a work in progress - see this bug).

That aside, if you have control of the server side, you may want to think about your design decision to provide the changing profile picture at a constant URL.

An alternative would be: Include the current profile picture URL in the profile information you retrieve. This way, your cache can use the cached image - and as soon as the profile information provides a new URL, Picasso will fetch it. In all other cases, Picasso can leverage the cache.

Loved the alternative solution =) – Fringo Aug 23 '14 at 13:56 — Fringo, Aug 23 '14 at 13:56

score 3 · Answer 2 · answered Jan 03 '16 at 15:19

3

I got the answer from this link

change your URL as shown below:

String imageurl = url + "?time=" + System.currentTimeMillis();

Picasso.with(getContext()).load(imageurl).into(imageView);

this worked for me. thanks

answered Jan 03 '16 at 15:19

Nabeel K

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Ultimate solution – Shabbir Dhangot Nov 18 '16 at 10:26
1

It will load the same image every time and consume more mobile data – Anand Savjani Dec 06 '16 at 09:43
1

This solution only works if you want to reload every time, and if that's the case then the other answers in this question are better practice. Given that we only want new images when there's a change to the image, this isn't a great solution. :/ – MGDavies Sep 11 '17 at 13:23

score 3 · Answer 3 · edited Dec 06 '16 at 10:00

3

Picasso.with(context)
.load(url)
.memoryPolicy(MemoryPolicy.NO_CACHE)
.networkPolicy(NetworkPolicy.NO_CACHE)
.fit()
.placeholder(YOUR PLACE HOLDER RESOURCE)
.centerCrop()
.into(imageView);

edited Dec 06 '16 at 10:00

Anand Savjani

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answered Dec 06 '16 at 09:39

Monika Aggarwal

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score 1 · Answer 4 · answered Nov 30 '15 at 12:00

One solution is to invalidate the cache like so

Picasso.with(context).invalidate(imagePath);

The other way to force download the image which then is cached for subsequent use as mentioned in the code.

Picasso.with(context)
        .load(imagePath)
        .networkPolicy(NetworkPolicy.NO_CACHE)
        .into(userAvatar);

How to inform Picasso that the image in the link changed?

4 Answers4