MediaViewerWidget constructor Null safety

MediaViewerWidget(
  1. Uri uri,
  2. {Key? key,
  3. Map<String, String>? headers,
  4. double? width,
  5. double? height,
  6. AssetImage? background,
  7. bool fitCenter = false,
  8. bool autoPlay = false,
  9. bool allowVolume = false,
  10. bool allowFullscreen = false}
)