loadFromAssets method

Future<String> loadFromAssets(String asset, { bool forceReload = false, })

Load a model from the app assets. Returns the path to the loaded model.

By default, this method will not reload an already loaded model, you can change this behaviour using the forceReload flag.

Implementation

Future<String> loadFromAssets(
  final String asset, {
  final bool forceReload = false,
}) async {
  final modelName = path.basenameWithoutExtension(asset);
  if (!forceReload && await isModelAlreadyLoaded(modelName)) {
    final modelPathValue = await modelPath(modelName);
    log('Model already loaded to $modelPathValue', name: 'ModelLoader');
    return modelPathValue;
  }

  final start = DateTime.now();

  final bytes = await (assetBundle ?? rootBundle).load(asset);
  final decompressionPath = await _extractModel(bytes.buffer.asUint8List());

  final decompressedModelRoot = path.join(decompressionPath, modelName);
  log(
    'Model loaded to $decompressedModelRoot in '
    '${DateTime.now().difference(start).inMilliseconds}ms',
    name: 'ModelLoader',
  );

  return decompressedModelRoot;
}