measureItems method
Future<_Measure>
measureItems(
- _Cancelled? cancelled,
- int count,
- IndexedWidgetBuilder builder,
- double startingSize,
- int startingCount,
override
Returns the sum of the sizes of a bunch of items, built using the specified builder.
Implementation
@override
Future<_Measure> measureItems(
_Cancelled? cancelled,
int count,
IndexedWidgetBuilder builder,
double startingSize,
int startingCount) async =>
(itemExtent * (count + startingCount)).toExactMeasure();