getImage static method

Future<Codec> getImage(
  1. String url,
  2. Duration retryDuration,
  3. Duration maxRetryDuration,
  4. bool enableCache, {
  5. bool clearCacheImage = false,
})

Get the image codec

This function gets the image codec of url. It verifies if the image is in cache and returns it if enableCache is true. If the images is not in cache then the function download the image and stores in cache if enableCache is true.

Implementation

static Future<ui.Codec> getImage(String url, Duration retryDuration,
    Duration maxRetryDuration, bool enableCache,
    {bool clearCacheImage = false}) async {
  Uint8List bytes;
  // delete single image from cache
  if (clearCacheImage) {
    await _deleteHiveImage(url);
  }
  HiveCacheImage? cacheImage = _getHiveImage(url);
  if (cacheImage == null) {
    bytes = await _downloadImage(
      url,
      retryDuration,
      maxRetryDuration,
    );
    if (bytes.lengthInBytes != 0) {
      if (enableCache) _saveHiveImage(url, bytes);
    } else {
      /// TODO
      throw "Image couldn't be downloaded";
    }
  } else {
    bytes = cacheImage.binaryImage;
  }
  return ui.instantiateImageCodec(bytes);
}