Thanks for your answer! I also don't want to charge users twice so for this reason i use both lrucache and diskcache! The problem is i don't want to make an overhead to my app creating many lru caches! I think i solved the problem i have mentioned to my post but please correct me if i am wrong. I first created a parallel imageFetcher(download images) which is identical to the original imageFetcher with the difference that it uses http2 cache dir whereas the original uses the http cache. I am not sure if this solved my problem but i think it works because they are using different disk caches and when the firstImageFetcher doesn't cancel the imageDownload when the third tab starts to download images! I am not pretty sure if i have clearly understand how they work but i guess that this solution works. In order to prevent useless overhead in my app how can use the same lruCache from both fragments and how can i also use the same cache when a full screen activity starts and uses the same images? Finally when the lruCache is being destroyed and when i should call closeDiskCache, flushCache? Sorry for my many questions but i couldn't find any detailed tutorial about android Caches!
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