code: public static void customizeCache(Context context, int memoryCacheSizeInKB,
                                        String defaultDiskCachePath, int defaultDiskCacheSizeInKB,
                                        String stableDiskCachePath, int stableDiskCacheSizeInKB) {
  
          // init memory cache first
          if (memoryCacheSizeInKB > 0) {
              int maxCacheSizeInKB = Math.round(0.5f * Runtime.getRuntime().maxMemory() / 1024);
              memoryCacheSizeInKB = Math.min(memoryCacheSizeInKB, maxCacheSizeInKB);
              sDefaultImageMemoryCache = new DefaultMemoryCache(memoryCacheSizeInKB);
          }
  
          if (defaultDiskCacheSizeInKB > 0 && !TextUtils.isEmpty(defaultDiskCachePath)) {
              ImageDiskCacheProvider imageFileProvider = getImageFileProvider(context, defaultDiskCachePath, defaultDiskCacheSizeInKB, DEFAULT_FILE_CACHE_DIR);
              if (imageFileProvider != null) {
                  sDefaultImageProvider = new ImageProvider(context, getDefaultImageMemoryCache(), imageFileProvider);
              }
          }
  
          if (stableDiskCacheSizeInKB > 0 && !TextUtils.isEmpty(stableDiskCachePath)) {
              ImageDiskCacheProvider imageFileProvider = getImageFileProvider(context, stableDiskCachePath, stableDiskCacheSizeInKB, STABLE_FILE_CACHE_DIR);
              if (imageFileProvider != null) {
                  sStableImageProvider = new ImageProvider(context, getDefaultImageMemoryCache(), imageFileProvider);
              }
          }
      }
docs: customize cache
  
  @param context
  @param memoryCacheSizeInKB      How many memory should use. Will not be greater than 50% of free memory
  @param defaultDiskCachePath     Default image cache path.
  Absolute path or a relative path under cache directory. External cache first.
  If not specified, using {@link #DEFAULT_FILE_CACHE_DIR} under cache directory.
  @param defaultDiskCacheSizeInKB Default disk cache size.
  @param stableDiskCachePath      Path for stable cache directory. Default is {@link #STABLE_FILE_CACHE_DIR}
  @param stableDiskCacheSizeInKB  Stable disk cache size.