@Override
    public void onNewResultImpl(@Nullable EncodedImage newResult, @Status int status) {
      try {
        if (FrescoSystrace.isTracing()) {
          FrescoSystrace.beginSection("EncodedMemoryCacheProducer#onNewResultImpl");
        }
        // intermediate, null or uncacheable results are not cached, so we just forward them
        // as well as the images with unknown format which could be html response from the server
        if (isNotLast(status)
            || newResult == null
            || statusHasAnyFlag(status, DO_NOT_CACHE_ENCODED | IS_PARTIAL_RESULT)
            || newResult.getImageFormat() == ImageFormat.UNKNOWN) {
          getConsumer().onNewResult(newResult, status);
          return;
        }

        // cache and forward the last result
        CloseableReference<PooledByteBuffer> ref = newResult.getByteBufferRef();
        if (ref != null) {
          CloseableReference<PooledByteBuffer> cachedResult = null;
          try {
            if (mEncodedCacheEnabled && mIsEncodedCacheEnabledForWrite) {
              cachedResult = mMemoryCache.cache(mRequestedCacheKey, ref);
            }
          } finally {
            CloseableReference.closeSafely(ref);
          }
          if (cachedResult != null) {
            EncodedImage cachedEncodedImage;
            try {
              cachedEncodedImage = new EncodedImage(cachedResult);
              cachedEncodedImage.copyMetaDataFrom(newResult);
            } finally {
              CloseableReference.closeSafely(cachedResult);
            }
            try {
              getConsumer().onProgressUpdate(1f);
              getConsumer().onNewResult(cachedEncodedImage, status);
              return;
            } finally {
              EncodedImage.closeSafely(cachedEncodedImage);
            }
          }
        }
        getConsumer().onNewResult(newResult, status);
      } finally {
        if (FrescoSystrace.isTracing()) {
          FrescoSystrace.endSection();
        }
      }
    }
Memory cache producer for the encoded memory cache.
imagepipeline/src/main/java/com/facebook/imagepipeline/producers/EncodedMemoryCacheProducer.java