My own application already has internet permissions as I am downloading JSON files onto it. However, Picasso will not load images on the emulator.
I downloaded this Picasso/Glide Dagger example just to make sure that it was not my code that was broken. https://github.com/omaflak/Dagger2-Sample
Whenever I run the example application on the emulator, the images won't load.
However, if I run it on my phone, the images load correctly.
Is there anything in my emulator that I would need to fix to make Picasso or Glide work?
Related
I have the following problem and do not quite know how to solve it:
I am loading pictures from one device to Firebase Storage Cloud. With another device, I want to download them from Firebase Storage.
So far my implementation looks like this. Every time I open the app it re-downloads and displays all the images. I can't effectively get it to save the images in the app (NOT GALLERY) and just check if there is a new image that hasn't been downloaded yet.
What you're looking for, is to cache images on an Android device. This means that once you download it, you will not need to download it again, it will always be read from the cache.
For Android, there are a few libraries that do that. One would be Glide, and another one would be Picasso. If you're using however Kotlin and Jetpack Compose, then you can use Coil.
The bottom line is this. There is a list of users who need to download their images from the firebase storage.
Downloading of all images is not rational, because memory problems are unavoidable with a large number of users.
The question: what should be done in this situation and realize this function most rationally?
Try image libraries Glide or Picasso
Replace path with local folder path or server url
Glide.with (context).load (path).asBitmap().into(imageView);
These libraries will handle memory issue.
try to avoid the loss of image data during a running download from my server via a Fresco ImageRequest.
Everything runs perfect, but if the connection fails (interruption of network connectivity), the image is gone. But as I know, some Scans has been decoded (LogCat -> Intermediate image received!). But how to access them? Is there a way to save every single Scan in a seperate file? To access the latest version, if the phone goes offline?
Thx!
Fresco doesn't fully support this functionality. Please file an issue on GitHub.
Currently I'm using Picasso Library to download and cache images of my list-view but it only keeps cache for sometime. I also tried Universal Image Loader too, but the same problem persists, images only available for sometime. Can anybody please tell me how whatsApp, Gmail, Google Inbox etc. Cache images for offline usage. Whether they are using some libraries or they custom code to cache/save images...Please guide!
When i develop a android app with download and caching image from internet, i see many app use MemoryLruCache or DiskLruCache to cache image after download. But i want to know why they use them, why don't use the way like: download image, then save image into sd card and after get image from sd card to show it( it is manual way).
I'm newbie in android dev. So please help me to understand it?
Thanks many many times.
well downloading a list of images from url will consume time and also fill up the user memory also....so its better to dynamically load images from url and make its cache and then preview the images from cache..
I hope you did got my point....check some example of lazy loading of image