PhotoViewImageTapUpCallback typedef Null safety

PhotoViewImageTapUpCallback = dynamic Function(BuildContext context, TapUpDetails details, PhotoViewControllerValue controllerValue)

A type definition for a callback when the user taps up the photoview region

Implementation

typedef PhotoViewImageTapUpCallback = Function(
  BuildContext context,
  TapUpDetails details,
  PhotoViewControllerValue controllerValue,
);