Android, Image Cache is not clearing in Picasso - android

I'm using the following code to load an image from Json into an imageView.
Picasso.with(Sell_Preview_Activity.this)
.load(Httppost_Links.imagePath
+ ConstantVariables.sellDetails_stringURL)
.resize(size, size).centerInside()
.memoryPolicy(MemoryPolicy.NO_CACHE)
.into(viewImage_imageView);
But still the cache is maintained even after the image has been edited. Can anyone please help me how I can overcome this issue.

May be you can use new method of picasso
Picasso.with(getActivity()).invalidate(file);
or else same as memorypolicy add networkpolicy
.networkPolicy(NetworkPolicy.NO_CACHE)

Use this
Picasso.with(context).load(file).skipMemoryCache().placeholder(R.drawable.placeholder).stableKey(id).into(imageview);

Related

Glide Does not use Cached Image

Hi I am using Glide to load image and after following many posts I tried to implement Glide caching using
RequestOptions().diskCacheStrategy(DiskCacheStrategy.ALL).centerCrop()
Glide.with(mContext)
.load(imageUrl)
.transition(ImageUtil.crossFadeTransition())
.apply(ImageUtil.requestOptionsForSlider())
.listener(glideRequestListner)
.into(imageView)
My knowledge is that if I use diskCacheStrategy(DiskCacheStrategy.ALL) then the above Glide image loading code will automatically use cache if available, or download if not, right?
But I see everytime the code is called, (checking my internet speed meter) that it is always fetching/downloading from the given url (even though I can see the app memory size is increasing).
I even tried this code also-
val future: FutureTarget<File> = Glide.with(mContext)
.load(imageUrl)
.downloadOnly(500, 500)
Nothing seems to work
What should I do so that Glide uses cache if available?What is wrong with my conception about the caching implementation? Any help is very much appreciated!
Are you sure it is downloading again ? did you try disabling internet just before loading the images ?
Otherwise, is your image URL always the same for the same image ? (as Glide uses it as a cache key).
You can use this in the following calls to check if images are in cache:
Glide.with(fragment)
.load(url)
.onlyRetrieveFromCache(true)
.into(imageView);

Glide load thumbnail not working

I'm using Glide to load thumbnail from videos but it doesn't seem to be working on my app. The ImageView is just empty for some reason.
Glide.with(context)
.load(url)
.asBitmap()
.thumbnail(0.1f)
.diskCacheStrategy(DiskCacheStrategy.ALL)
.into(target);
I added a listener, so I can figure out what is wrong but the Exception thrown is null.
I tried using ThumbnailUtils using the same url because I thought there might be something wrong with it but the thumbnail loads fine.
Anyone experiencing the same? I'm using a Nexus 7 (6.0.1)
Even i stumbled upon the same situation. Somehow from the uri its not loading the image unless create a file instance using local file path. So to make it work i used it like below
Glide.with(mContext).load(Uri.fromFile(new File(path)).into(icon);
In the doc they are using the same approach. You can refer here : Glide - Videos
Apart from that i also noticed unusual behaviour of using the cache. If you are using cache strategy as DiskCacheStrategy.ALL or DiskCacheStrategy.SOURCE it doesn't load the thumbnail but if i am using DiskCacheStrategy.RESULT it works. Hope it helps
As explained in Glide documentation, this feature is only available for videos stored locally on the device.
Also, you should use a path like /storage/emulated/0/Pictures/example_video.mp4. Adding file:/// before this path won't work out either.
You can find more informations here : https://futurestud.io/blog/glide-displaying-gifs-and-videos
Cheers !
You can use override, which surely works:
Glide.with(context)
.load(url)
.crossFade()
.override(width, height)
.into(imageView);
Glide.with(mcontext)
.applyDefaultRequestOptions(RequestOptions.centerCropTransform()
.diskCacheStrategy(DiskCacheStrategy.RESOURCE))
.load(videourl)
.into(thumbnailimg);
Try using this code
#BindingAdapter("videoThumbnailFromUrl")
fun setImageFromVideoUrl(imageView: ImageView, url: String) {
val thumb = 10000L
val options = RequestOptions().frame(thumb)
Glide.with(imageView.context).load(url).apply(options).placeholder(R.drawable.place_holder).into(imageView)
}

Android - use picasso to load image without storing it in cache

I want to use picasso to load an image from a url into a placeholder, but not store that image in cache - in other words, I want the image to be downloaded from the net directly to disk and then loaded from disk when needed. I understand there's a class called RequestCreator where you can specify memory policy - does anyone have an example of using picasso/requestcreator to do something like this?
So.. something like:
RequestCreator requestCreator = new RequestCreator();
requestCreator.memoryPolicy(MemoryPolicy.NO_CACHE);
....
merged with:
Picasso.with(context).load(someurl).fit().placeholder(someplaceholder).into(sometarget)..
Picasso supports this by it's skipMemoryCache() in the Picasso builder. An example is shown below.
Picasso.with(context).load(imageUrl)
.error(R.drawable.error)
.placeholder(R.drawable.placeholder)
.skipMemoryCache()
.into(imageView);
With the new API you should use it like this so that it skips looking for it and storing it in the cache:
Picasso.with(context).load(imageUrl)
.error(R.drawable.error)
.placeholder(R.drawable.placeholder)
.memoryPolicy(MemoryPolicy.NO_CACHE, MemoryPolicy.NO_STORE)
.into(imageView);
NO_CACHE
Skips memory cache lookup when processing a request.
NO_STORE
Skips storing the final result into memory cache. Useful for one-off requests to avoid evicting other bitmaps from the cache.
For picasso:2.71828 or above version use the following for skipping using disk cache networkPolicy(NetworkPolicy.NO_CACHE) :
Picasso.get()
.load(camera_url)
.placeholder(R.drawable.loader2)
.networkPolicy(NetworkPolicy.NO_CACHE, NetworkPolicy.NO_STORE)
.into(img_cam_view);
Picasso 2.5.0
If you are using Picasso to load image from Internet, you have to use NetworkPolicy attribute.
.networkPolicy(NetworkPolicy.NO_STORE)
but live memory cache (Not disk cache) is useful, you might want to keep it.
just append this at the end of url.
"?=" + System.currentTimeMillis();

Picasso image loading previously cached images

I am using picasso library in my project to fetch url images from the server into my ImageView, but unfortunately picasso loading the previously cached images from disc instead of loading the new images from url. Please find the below piece of code for your reference.
Picasso.with (ImageActivity.this)
.load(url)
.placeholder (R.drawable.default_user)
.error (R.drawable.default_user)
.into(imgUser);
I have also tried the solutions like:
Picasso.with(ImageActivity.this).invalidate(url);
and
Picasso.with (ImageActivity.this)
.load(url).memoryPolicy(MemoryPolicy.NO_CACHE)
.placeholder (R.drawable.default_user)
.error (R.drawable.default_user)
.into(imgUser);
But nothing is working for me. Kindly help me to resolve my issues.
Thanks in advance.
Try :
Picasso.with(mContext)
.load(URL)
.memoryPolicy(MemoryPolicy.NO_CACHE )
.networkPolicy(NetworkPolicy.NO_CACHE)
.error(R.drawable.xxx)
.into(xx);
I know there's already an answer but after trying a few ways I figured out a very simple way:
Check if the image is null - if it is not - then load the image with Picasso-like that:
if(vImage.getDrawable() == null)
Picasso.with(context).load(URL).into(vImage);
Hope this helped someone.

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

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

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