Invalidate Cache in Picasso

Clear Cache memory of Picasso

if you are trying to load an image through Json(from db) try clearing the networkCache for a better result.

Picasso.with(context).load(uri).networkPolicy(NetworkPolicy.NO_CACHE)
        .memoryPolicy(MemoryPolicy.NO_CACHE)
        .placeholder(R.drawable.bv_logo_default).stableKey(id)
        .into(viewImage_imageView);

Invalidate cache in Picasso

In the recent versions of Picasso, there is a new method for invalidate, without any workarounds, so I think that custom PicassoTools class mentioned earlier, is now obsolete in this case

Picasso.with(getActivity()).invalidate(file);

How to clear Picasso cache memory in android

you can do this -

Picasso.with(context).load(your_url).networkPolicy(NetworkPolicy.NO_CACHE)
        .memoryPolicy(MemoryPolicy.NO_CACHE)
        .into(your_image_view);

How to clear cache and Reload Image in Picasso?

invalidate() and memoryPolicy() were introduced in later versions of the library. To use either of them update picasso to the latest version

compile 'com.squareup.picasso:picasso:2.5.2'

android picasso invalidate not working

use this to invalidate your image path:

Picasso.with(mContext).invalidate(ImagePath + ".jpg");

and to load your image use:

 Picasso.with(mContext).load(ImagePath+".jpg").networkPolicy(NetworkPolicy.NO_CACHE).placeholder(R.drawable.loading).error(R.drawable.ic_new).into(Imageview);

How to clear cache in picasso?

Try load url with variable like time now:
Calendar urlvar = Calendar.getInstance();
int seconds = urlvar.get(Calendar.SECOND);

Then load your url by adding to string: ?urlvar so the final loaded url will be for example example.com/m.png?date it will be cashed but next load the date is changed so the url will change so will not load from cash. Hope ot work

Picasso cache clear

get from this answer

Add this class to the com.squareup.picasso package.

package com.squareup.picasso;

public class PicassoTools {

    public static void clearCache (Picasso p) {
        p.cache.clear();
    }
}

Because cache has package visibility, this util class can clear the cache for you. You just have to call it:

PicassoTools.clearCache(Picasso.with(context));

Just add this file to a path .../java/com/squareup/picasso

P.S. I strongly recommend use glide instead of picasso, it has more powerful features to cache control and awesome download-callbacks to catch download errors, for example

How to delete all files from Android Picasso cache

I myself was searching on how to clear the whole cache few days back and stumbled upon it on Stackoverflow itself, cannot seem to find the thread now but here's my code.

Add this class to the com.squareup.picasso package :

 package com.squareup.picasso;

    public class PicassoTools {

        public static void clearCache (Picasso picasso) {
            picasso.cache.clear();
        }
    }

And simply call this on logout method :

PicassoTools.clearCache(Picasso.with(context));