measureItems abstract method

Future<_Measure> measureItems(
  1. _Cancelled? cancelled,
  2. int count,
  3. IndexedWidgetBuilder builder,
  4. double startingSize,
  5. int startingCount,
)

Returns the sum of the sizes of a bunch of items, built using the specified builder.

Implementation

Future<_Measure> measureItems(_Cancelled? cancelled, int count,
    IndexedWidgetBuilder builder, double startingSize, int startingCount);