Develop Reference

How to remove a particular image URL from disk cache in Glide?

I am loading an image from remote URL into an ImageView with Glide. When I update the image, the content within that URL changes, but the URL location remains same. (This is as expected).
for eg. https://www.the-android-app.com/userid/121.jpg
Now I am showing image into ImageView using this code.
Glide
.with(this)
.load(profilePicUrl) //this is in String format
.diskCacheStrategy(DiskCacheStrategy.RESULT)
.skipMemoryCache(true)
.error(R.drawable.default_profile_pic)
.into(imgProfilePic);
When I update my profile pic, Glide is loading the same old pic from Cache. I need to remove cache entry for this URL before fetching the new image.
Edit:
The url always remains same, only the content inside it changes.
I'm using Glide 3.8.0

You can try signature(new ObjectKey(System.currentTimeMillis()))
Look in Custom cache invalidation for more information.
Example
GlideApp.with(this)
.load(imageUrl)
.signature(new ObjectKey(System.currentTimeMillis()))
.into(imageView);

cache image without showing glide

Is it possible to cache image using glide without showing it in the imageView?. If it is then how?.
Right now I'm doing this code:
Glide
.with(getApplicationContext())
.load("imageUrl")
.override(windowWidth(),(int)windowWidth()*0.5))
.diskCacheStrategy(DiskCacheStrategy.ALL);
But this is not working , when app is open glide load image not from cache but from url.

Since glide 4.X:
//to save img
RequestManager rm = Glide.with(context);
rm.load(imgUrl).submit();
//to load img
Glide.with(context)
.applyDefaultRequestOptions(
new RequestOptions().diskCacheStrategy(DiskCacheStrategy.ALL))
.load(imgUrl)
.into(view);
Based on this GitHub topic

i've never used it, but referring the documentation: have you tried the downloadOnly?
Glide's downloadOnly() API allows you to download the bytes of an image into the disk cache so that it will be available to be retrieved later.
https://github.com/bumptech/glide/wiki/Loading-and-Caching-on-Background-Threads#downloadonly

To preload remote images and ensure that the image is only downloaded once:
Glide.with(context)
.load(yourUrl)
.diskCacheStrategy(DiskCacheStrategy.SOURCE)
.preload();

How to remove glide cache - android?

so i use glide everywhere in my app to upload the user's profile image via url. When the user changes their profile picture. I update the backend, so the url is updated. But, glide has cached the old image. How do i overwrite the previous cached image, so that when the user navigates through the app, he/she can see their profile picture change in all activities?

RequestOptions requestOptions = new RequestOptions()
.diskCacheStrategy(DiskCacheStrategy.NONE) // because file name is always same
.skipMemoryCache(true);
Glide.with(this)
.load(photoUrl)
.apply(requestOptions)
.into(profile_image);
In the latest versions we should use RequestOptions
RequestOptions Provides type independent options to customize loads with Glide in the latest versions of Glide.
Make a RequestOptions Object and use it when we are loading the image.

Call Glide.get(context).clearDiskCache() on outside the UI thread. (also consider clearMemory() too to prevent surprises after clearing disk cache)
Read Cache invalidation, because it's not otherwise possible to remove a single file from cache. If you explain your "Clear cache of an URL" use case we may be able to give a better suggestion.

how to cache image with a new one which have the same url?

i have listview to load images for alot of users and this listview item has an imageview for profile picture of user, the problem here if the user changed his the new image will not be shown as last profile picture is cached and the old one will be displayed because the new and old image have the same url:
URL EX:
"https://xyz.s3.amazonaws.com/users/" + friend_id + "/photos/profile.jpg"
i used Glide but i have the same problem

This issue is because of the cache of images, Glide checks if image is available in cache, if it does glide loads it else it would load the new image.
To solve this issue you need to change its cache strategy like this
Glide.with(mContext)
.load((Integer) mDataset.get(position))
.fitCenter()
.diskCacheStrategy(DiskCacheStrategy.NONE) // this will prevent image to be cached and each time glide will load it from server
.into(imageView);

Profile Image Uploader and Load it with Picasso

I have an android app which has profile image.
The user can edit his/her profile image.
I'm using Picasso to load images, but every time I load profile image, Picasso loads old image.
When I upload profile image I don't change it's url, so profile image url for every user is constant.
First question: should I change profile image url every time user change profile image?
Second question: When user change his/her profile image I invalidate Picasso to load new image using this code:
picassoInstance.load(url)
.networkPolicy(NetworkPolicy.NO_CACHE)
.transform(new CircleTransform())
.placeholder(dr)
.into(imageView);
But Picasso show me the old one.
And one more thing:
I load image url into imageView without calling networkPolicy method at first.
How should I handle this problem?

Every Image has different name, whenever new image uploaded you have to update your image Url
Eg. current url : https://photographylife.com/nikon-d810-high-resolution-image-samples
where Image name is : nikon-d810-high-resolution-image-samples
and after uploaded new image, name will be different for example : image-sample
so you need to update that image Url : https://photographylife.com/image-sample with new name
try this, i telling you cause im doing the same hope this will help you!

So lets just discuss one by one:
Should I change profile image url every time user change profile
image?
No. You might think of other ways around. In my case, I download the picture each time the url changes with a specific name of the user (as we're considering profile picture). So when I loaded the image with Picasso I passed the file path instead of the URL so that, it won't fetch from the URL each time. Picasso doesn't do that either actually. It maintains a cache. If the file doesn't exist, just put a placeholder.
When user change his/her profile image I invalidate Picasso to load
new image using this code:
I don't see any invalidate code here in your code. I would refer to this link to see how they've solved the cache problem.
I load image url into imageView without calling networkPolicy method
at first.
So if you fetch the image from the external storage, I don't think there's a necessity to do so.
And another suggestion is to use Glide in these cases. This is almost the same thing as Picasso, but personally I like to use Glide instead of Picasso.
Hope that helps.

Using Glide instead of Picasso because Glide recommended by google
http://inthecheesefactory.com/blog/get-to-know-glide-recommended-by-google/en
Preventing for caching in Glide
Glide.with(DemoActivity.this)
.load(Uri.parse("file://" + imagePath))
.diskCacheStrategy(DiskCacheStrategy.NONE)
.skipMemoryCache(true)
.into(mImage);

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));

I find where problem is:
I turned down disk cache but not memory cache. I should use this code:
picassoInstance.load(url)
.networkPolicy(NetworkPolicy.NO_CACHE)
.memoryPolicy(MemoryPolicy.NO_CACHE)
.transform(new CircleTransform())
.placeholder(dr)
.into(imageView);
I use this link to:
picasso-influencing-image-caching
Thanks everybody

You need to invalidate the file before loading use the code given below:
Picasso.with(getActivity()).invalidate(file);
To know more details kindly study the Picasso documentation from their website.