resizeIfNeeded method Null safety

ImageProvider<Object> resizeIfNeeded (
  1. int? cacheWidth,
  2. int? cacheHeight,
  3. ImageProvider<Object> provider

Composes the provider in a ResizeImage only when cacheWidth and cacheHeight are not both null.

When cacheWidth and cacheHeight are both null, this will return the provider directly.


static ImageProvider<Object> resizeIfNeeded(int? cacheWidth, int? cacheHeight, ImageProvider<Object> provider) {
  if (cacheWidth != null || cacheHeight != null) {
    return ResizeImage(provider, width: cacheWidth, height: cacheHeight);
  return provider;