SliverWaterfallFlowDelegateWithFixedCrossAxisCount constructor
const
SliverWaterfallFlowDelegateWithFixedCrossAxisCount({
- required int crossAxisCount,
- double mainAxisSpacing = 0.0,
- double crossAxisSpacing = 0.0,
- LastChildLayoutTypeBuilder? lastChildLayoutTypeBuilder,
- CollectGarbage? collectGarbage,
- ViewportBuilder? viewportBuilder,
- bool closeToTrailing = false,
Creates a delegate that makes masonry layouts with a fixed number of tiles in the cross axis.
All of the arguments must not be null. The mainAxisSpacing
and
crossAxisSpacing
arguments must not be negative.The crossAxisCount
must be greater than zero.
Implementation
const SliverWaterfallFlowDelegateWithFixedCrossAxisCount({
required this.crossAxisCount,
double mainAxisSpacing = 0.0,
double crossAxisSpacing = 0.0,
LastChildLayoutTypeBuilder? lastChildLayoutTypeBuilder,
CollectGarbage? collectGarbage,
ViewportBuilder? viewportBuilder,
bool closeToTrailing = false,
}) : assert(crossAxisCount > 0),
super(
mainAxisSpacing: mainAxisSpacing,
crossAxisSpacing: crossAxisSpacing,
lastChildLayoutTypeBuilder: lastChildLayoutTypeBuilder,
collectGarbage: collectGarbage,
viewportBuilder: viewportBuilder,
closeToTrailing: closeToTrailing,
);