readJson method

Future<Map<String, dynamic>> readJson(
  1. String fileName
)

Reads a json file from the assets folder.

Implementation

Future<Map<String, dynamic>> readJson(String fileName) async {
  if (!_files.containsKey(fileName)) {
    _files[fileName] = await _readJson(fileName);
  }
  assert(
    _files[fileName] is _JsonAsset,
    '"$fileName" was previously loaded as a different type',
  );
  return (_files[fileName]! as _JsonAsset).value;
}