fromJson static method

Images? fromJson(dynamic value)

Returns a new Images instance and imports its values from value if it's a Map, null otherwise.

Implementation

// ignore: prefer_constructors_over_static_methods
static Images? fromJson(dynamic value) {
  if (value is Map) {
    final json = value.cast<String, dynamic>();

    // Ensure that the map contains the required keys.
    // Note 1: the values aren't checked for validity beyond being non-null.
    // Note 2: this code is stripped in release mode!
    assert(() {
      requiredKeys.forEach((key) {
        assert(json.containsKey(key), 'Required key "Images[$key]" is missing from JSON.');
        assert(json[key] != null, 'Required key "Images[$key]" has a null value in JSON.');
      });
      return true;
    }());

    return Images(
      fixedHeight: ImageData.fromJson(json[r'fixed_height'])!,
      fixedHeightDownsampled: ImageData.fromJson(json[r'fixed_height_downsampled'])!,
      fixedHeightStill: ImageData.fromJson(json[r'fixed_height_still'])!,
      fixedWidth: ImageData.fromJson(json[r'fixed_width'])!,
      fixedWidthDownsampled: ImageData.fromJson(json[r'fixed_width_downsampled'])!,
      fixedWidthStill: ImageData.fromJson(json[r'fixed_width_still'])!,
      original: ImageData.fromJson(json[r'original'])!,
    );
  }
  return null;
}