Clear network cache using Picasso

Question

I'm using Picasso to load image into my ImageView like this :

Picasso.with(getContext())
       .load(store.getString("profile"))
       .placeholder(R.drawable.ic_nothumb)
       .resize(120, 120)
       .into(iv);

Where store.getString("profile") = a string representing my url.

However even if the path don't change, when I update the image within the same path, Picasso still loading the previous image.

I've read that we can clear the network cache but I can't find a way to use .invalidate() method nor .cachePolicy() or .networkPolicy() when I try to use them I have unresolved symbol.

EDIT: I updated my Picasso version to compile

"com.squareup.picasso:picasso:2.5.2"

And now I can use .networkPolicy(), however I got this error I can't find any solution to fix it :

E/AndroidRuntime: FATAL EXCEPTION: main Process: dev.com.diaginfo, PID: 10614 java.lang.NoClassDefFoundError: Failed resolution of: Lcom/squareup/picasso/NetworkPolicy; Caused by: java.lang.ClassNotFoundException: Didn't find class "com.squareup.picasso.NetworkPolicy" on path: DexPathList

Check this post http://stackoverflow.com/questions/22016382/invalidate-cache-in-picasso — an_droid_dev, Aug 24 '16 at 10:41
"i've read that we can clear the network cache but i cant find a way to use .invalidate() method nor .cachePolicy() or .networkPolicy() when i try to use them i have Unresolved Symbol." — Hugo Houyez, Aug 24 '16 at 10:45
The new error you're facing is probably caused by going over the dex limit. However, it's a completely different case and should be posted in a new question. — manabreak, Aug 25 '16 at 05:10

manabreak · Answer 1 · 2016-08-25T05:07:30.043

1

You have to tell Picasso explicitly not to cache the image:

Picasso.with(getContext())
    .load(store.getString("profile"))
    .placeholder(R.drawable.ic_nothumb)
    .resize(120, 120)
    .networkPolicy(NetworkPolicy.NO_CACHE)
    .into(iv);

edited Aug 25 '16 at 05:07

answered Aug 24 '16 at 10:40

manabreak

5,415
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".cachePolicy() or .networkPolicy() when i try to use them i have Unresolved Symbol." – Hugo Houyez Aug 24 '16 at 10:42
In which step are you trying to use them? They should work if called before `into()`. – manabreak Aug 24 '16 at 11:18
in network policy 'P' p is in Caps. Use this Picasso.with(getContext()) .load(store.getString("profile")) .placeholder(R.drawable.ic_nothumb) .resize(120, 120) .networkPolicy(NetworkPolicy.NO_CACHE) .into(iv); – Vindhya Pratap Singh Aug 24 '16 at 11:58
My bad, was using the wrong version of Picasso i changed to compile "com.squareup.picasso:picasso:2.5.2" but have an error i cant fix see edit question – Hugo Houyez Aug 24 '16 at 12:19
My bad, the 'p' was indeed a typo. – manabreak Aug 25 '16 at 05:07

score 0 · Answer 2 · answered Aug 24 '16 at 10:40

0

Picaso use ur url as key for caching. when updating the image use a time stamp to over come this. I have used and it worked like a charm

answered Aug 24 '16 at 10:40

Dinu

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Clear network cache using Picasso

2 Answers2