When browsing the same blog repeatedly, the same images are decoded repeatedly

Tested on [device], Android [version], WPAndroid [version]

Mi Note 3, Android 8.0, 16.3

Hi,
I performed the following operations on WordPress,
step1: click “Posts” on the main page
step2: click “Edit” of the first post “abc"

step3: click “Back” button

step4: repeat step2 and step 3 several times.

For the first time I opened the post, the speed of displaying the images in the post was slow and I think it is normal and acceptable.
However, when I opened the same post repeatedly, I found that the speed of image displaying was not smooth and the below page would appear for a short time.

By hooking WordPress, I found that several big images (e.g., 828*1104 pixels) were repeated decoded when I opened the same post repeatedly.
Below are part of the repeated decoded images:

Below are the decoded image data in WordPress during app execution (obtained by hooking WordPress) :

Data description: “828,1104" is the width and height of an image.

Below is the stack trace obtained by calling Thread.currentThread().getStackTrace() after each of the above images was decoded (after the statement responsible for image decoding was executed):
(each line contains "class name", "method name", and "line number”)
android.graphics.BitmapFactory;decodeStream;-1 com.bumptech.glide.load.resource.bitmap.Downsampler;decodeStream;718 com.bumptech.glide.load.resource.bitmap.Downsampler;decodeFromWrappedStreams;366 com.bumptech.glide.load.resource.bitmap.Downsampler;decode;224 com.bumptech.glide.load.resource.bitmap.Downsampler;decode;173 com.bumptech.glide.load.resource.bitmap.ByteBufferBitmapDecoder;decode;31 com.bumptech.glide.load.resource.bitmap.ByteBufferBitmapDecoder;decode;14 com.bumptech.glide.load.engine.DecodePath;decodeResourceWithList;92 com.bumptech.glide.load.engine.DecodePath;decodeResource;70 com.bumptech.glide.load.engine.DecodePath;decode;59 com.bumptech.glide.load.engine.LoadPath;loadWithExceptionList;76 com.bumptech.glide.load.engine.LoadPath;load;57 com.bumptech.glide.load.engine.DecodeJob;runLoadPath;524 com.bumptech.glide.load.engine.DecodeJob;decodeFromFetcher;488 com.bumptech.glide.load.engine.DecodeJob;decodeFromData;474 com.bumptech.glide.load.engine.DecodeJob;decodeFromRetrievedData;426 com.bumptech.glide.load.engine.DecodeJob;onDataFetcherReady;390 com.bumptech.glide.load.engine.DataCacheGenerator;onDataReady;94 com.bumptech.glide.load.model.ByteBufferFileLoader$ByteBufferFetcher;loadData;70 com.bumptech.glide.load.engine.DataCacheGenerator;startNext;74 com.bumptech.glide.load.engine.DecodeJob;runGenerators;310 com.bumptech.glide.load.engine.DecodeJob;runWrapped;276 com.bumptech.glide.load.engine.DecodeJob;run;234 java.util.concurrent.ThreadPoolExecutor;runWorker;1162 java.util.concurrent.ThreadPoolExecutor$Worker;run;636 java.lang.Thread;run;764 com.bumptech.glide.load.engine.executor.GlideExecutor$DefaultThreadFactory$1;run;431

Repeated decoding of the same images will take a lot of unnecessary time consumption, which would be the reason why image displaying is not smooth in WordPress.

I noticed that Glide is applied in WordPress. Maybe be the usage of Glide should be further optimized to cache these repeated decoded images in memory.

Thanks.

Reproduce the repeated post open-and-back flow described in the issue, then inspect the Glide entry points named in the stack trace, including Downsampler and DecodeJob. Confirm whether the same images are decoded again and determine what cache behavior would prevent that; done means repeated opens no longer cause redundant decoding or visibly uneven image display.