ListView(
Key key = null,
Axis scrollDirection = Axis.vertical,
bool reverse = false,
ScrollController controller = null,
bool?primary = null,
ScrollPhysics physics = null,
bool shrinkWrap = false,
EdgeInsets padding = null,
float?itemExtent = null,
SliverChildDelegate childrenDelegate = null,
float?cacheExtent = null
) : base(
key: key,
scrollDirection: scrollDirection,
reverse: reverse,
controller: controller,
primary: primary,
physics: physics,
shrinkWrap: shrinkWrap,
padding: padding,
cacheExtent: cacheExtent
)
{
D.assert(childrenDelegate != null);
this.itemExtent = itemExtent;
this.childrenDelegate = childrenDelegate;
}
public GridView(
Key key = null,
Axis scrollDirection = Axis.vertical,
bool reverse = false,
ScrollController controller = null,
bool?primary = null,
ScrollPhysics physics = null,
bool shrinkWrap = false,
EdgeInsets padding = null,
SliverGridDelegate gridDelegate = null,
SliverChildDelegate childrenDelegate = null,
float?cacheExtent = null,
DragStartBehavior dragStartBehavior = DragStartBehavior.start
) : base(
key: key,
scrollDirection: scrollDirection,
reverse: reverse,
controller: controller,
primary: primary,
physics: physics,
shrinkWrap: shrinkWrap,
padding: padding,
cacheExtent: cacheExtent,
dragStartBehavior: dragStartBehavior
)
{
D.assert(gridDelegate != null);
D.assert(childrenDelegate != null);
this.gridDelegate = gridDelegate;
this.childrenDelegate = childrenDelegate;
}
public static ListView custom(
Key key = null,
Axis scrollDirection = Axis.vertical,
bool reverse = false,
ScrollController controller = null,
bool?primary = null,
ScrollPhysics physics = null,
bool shrinkWrap = false,
EdgeInsets padding = null,
float?itemExtent = null,
SliverChildDelegate childrenDelegate = null,
float?cacheExtent = null
)
{
return(new ListView(
key,
scrollDirection,
reverse,
controller,
primary,
physics,
shrinkWrap,
padding,
itemExtent,
childrenDelegate,
cacheExtent));
}
public static GridView custom(
Key key = null,
Axis scrollDirection = Axis.vertical,
bool reverse = false,
ScrollController controller = null,
bool?primary = null,
ScrollPhysics physics = null,
bool shrinkWrap = false,
EdgeInsets padding = null,
SliverGridDelegate gridDelegate = null,
SliverChildDelegate childrenDelegate = null,
float?cacheExtent = null,
DragStartBehavior dragStartBehavior = DragStartBehavior.start
)
{
return(new GridView(
key: key,
scrollDirection: scrollDirection,
reverse: reverse,
controller: controller,
primary: primary,
physics: physics,
shrinkWrap: shrinkWrap,
padding: padding,
gridDelegate: gridDelegate,
childrenDelegate: childrenDelegate,
cacheExtent: cacheExtent,
dragStartBehavior: dragStartBehavior
));
}
public SliverFillViewport(
Key key = null, SliverChildDelegate del = null,
float viewportFraction = 1.0f) : base(key: key, del: del)
{
D.assert(viewportFraction > 0.0);
this.viewportFraction = viewportFraction;
}
public PageView(
Key key = null,
Axis scrollDirection = Axis.horizontal,
bool reverse = false,
PageController controller = null,
ScrollPhysics physics = null,
bool pageSnapping = true,
ValueChanged <int> onPageChanged = null,
List <Widget> children = null,
DragStartBehavior dragStartBehavior = DragStartBehavior.start,
IndexedWidgetBuilder itemBuilder = null,
SliverChildDelegate childDelegate = null,
int itemCount = 0
) : base(key: key)
{
this.scrollDirection = scrollDirection;
this.reverse = reverse;
this.physics = physics;
this.pageSnapping = pageSnapping;
this.onPageChanged = onPageChanged;
this.dragStartBehavior = dragStartBehavior;
this.controller = controller ?? PageViewUtils._defaultPageController;
if (itemBuilder != null)
{
this.childrenDelegate = new SliverChildBuilderDelegate(itemBuilder, childCount: itemCount);
}
else if (childDelegate != null)
{
this.childrenDelegate = childDelegate;
}
else
{
this.childrenDelegate = new SliverChildListDelegate(children ?? new List <Widget>());
}
}
public static PageView custom(
Key key = null,
Axis scrollDirection = Axis.horizontal,
bool reverse = false,
PageController controller = null,
ScrollPhysics physics = null,
bool pageSnapping = true,
ValueChanged <int> onPageChanged = null,
SliverChildDelegate childrenDelegate = null,
DragStartBehavior dragStartBehavior = DragStartBehavior.start,
bool allowImplicitScrolling = false
)
{
D.assert(childrenDelegate != null);
var page = new PageView(
key: key,
scrollDirection: scrollDirection,
reverse: reverse,
controller: controller ?? PageViewUtils._defaultPageController,
physics: physics,
pageSnapping: pageSnapping,
onPageChanged: onPageChanged,
allowImplicitScrolling: allowImplicitScrolling,
dragStartBehavior: dragStartBehavior
);
page.childrenDelegate = childrenDelegate;
return(page);
}
public SliverFixedExtentList(
Key key = null,
SliverChildDelegate del = null,
float itemExtent = 0
) : base(key: key, del: del)
{
this.itemExtent = itemExtent;
}
protected SliverMultiBoxAdaptorWidget(
Key key = null,
SliverChildDelegate del = null
) : base(key: key)
{
D.assert(del != null);
this.del = del;
}
public SliverPrototypeExtentList(
Key key = null,
SliverChildDelegate del = null,
Widget prototypeItem = null
) : base(key: key, del: del)
{
this.prototypeItem = prototypeItem;
}
public _SliverFillViewportRenderObjectWidget(
Key key = null,
SliverChildDelegate _delegate = null,
float viewportFraction = 1.0f
) : base(key: key, del: _delegate)
{
D.assert(viewportFraction > 0.0);
this.viewportFraction = viewportFraction;
}
public SliverGrid(
Key key = null,
SliverChildDelegate layoutDelegate = null,
SliverGridDelegate gridDelegate = null
) : base(key: key, del: layoutDelegate)
{
D.assert(layoutDelegate != null);
D.assert(gridDelegate != null);
this.gridDelegate = gridDelegate;
}
public SliverFillViewport(
Key key = null,
SliverChildDelegate _delegate = null,
float viewportFraction = 1.0f,
bool padEnds = true
) : base(key: key)
{
D.assert(viewportFraction > 0.0);
this._delegate = _delegate;
this.viewportFraction = viewportFraction;
this.padEnds = padEnds;
}
public override void update(Widget newWidgetRaw)
{
var newWidget = (SliverMultiBoxAdaptorWidget)newWidgetRaw;
SliverMultiBoxAdaptorWidget oldWidget = widget;
base.update(newWidget);
SliverChildDelegate newDelegate = newWidget.del;
SliverChildDelegate oldDelegate = oldWidget.del;
if (newDelegate != oldDelegate &&
(newDelegate.GetType() != oldDelegate.GetType() || newDelegate.shouldRebuild(oldDelegate)))
{
performRebuild();
}
}
public abstract bool shouldRebuild(SliverChildDelegate oldDelegate);
public override bool shouldRebuild(SliverChildDelegate oldDelegate)
{
return(true);
}
public override bool shouldRebuild(SliverChildDelegate oldDelegate)
{
return(children != ((SliverChildListDelegate)oldDelegate).children);
}
public SliverList(
Key key = null,
SliverChildDelegate del = null
) : base(key: key, del: del)
{
}
