Why Picasso is not saving image in cache for offline use?

Question

I have following code, which doesnot load image offline as intended. It works online well but I need to load image offline too. I have given permission for Writing external storage too. Any idea will be really helpful.

Picasso.with(getContext())
    .load(userInfo.getUserPictureUri())
    .networkPolicy(NetworkPolicy.OFFLINE)
    .resize(80, 80)
    .error(R.drawable.profile_picture)
    .centerCrop()
    .into(imageView_ProfilePictureSide, new Callback() {
        @Override
        public void onSuccess() {
        }

        @Override
        public void onError() {
            // Try again if cache failed
            Picasso.with(getActivity())
                 .load(userInfo.getUserPictureUri())
                 .error(R.drawable.profile_picture)
                 .into(imageView_ProfilePictureSide);
        }
    });

https://stackoverflow.com/questions/23978828/how-do-i-use-disk-caching-in-picasso — King of Masses, Oct 16 '17 at 06:54
DO you added compile 'com.squareup.okhttp:okhttp:2.4.0' in your gradle file? — King of Masses, Oct 16 '17 at 06:55
**Try removing that network policy ** as per the docs `Forces the request through the disk cache only, skipping network`. — Aniruddha K.M, Oct 16 '17 at 07:14
Thanks @KingofMasses it worked after adding okhttp. If you can then please post that as answer with reason why picasso needs okhttp. I will accept it. It will be really helpful for others too. :) — Binod Lama, Oct 16 '17 at 07:17

King of Masses · Accepted Answer · 2017-10-16T07:33:25.147

add the OkHttp to the gradle build file of the app module :

compile 'com.squareup.picasso:picasso:2.5.2'
compile 'com.squareup.okhttp:okhttp:2.4.0'

Picasso use the HTTP client request to Disk Cache operation So you can make your own http request header has property Cache-Control with max-age And create your own Static Picasso Instance instead of default Picasso By using Okhttp.

Both the Okhttp and picasso libraries are provided by squareup team.

References: How do I use disk caching in Picasso? and Github issue about disk cache, two Questions has been answered by @jake-wharton -> Question1 and Question2

Why Picasso is not saving image in cache for offline use?

1 Answers1