RenderListViewScrollViewport class

Render object for _ListViewViewport.

Lays out all children (so they stay in the element tree), paints them, joins with separator, and clips to the viewport window based on scroll offset.

Inheritance

Constructors

RenderListViewScrollViewport({required ScrollController controller, required String separator})

Properties

children → List<RenderObject>
finalinherited
constraints ↔ BoxConstraints
getter/setter pairinherited
controller ↔ ScrollController
getter/setter pair
element ↔ Object?
getter/setter pairinherited
hashCode → int
The hash code for this object.
no setterinherited
offset ↔ Offset
Position relative to the parent render object, computed during layout.
getter/setter pairinherited
paintDirty → bool
Whether this render object (or a descendant in its subtree) needs paint.
no setterinherited
paintOnlyDirty → bool
Whether all pending invalidations explicitly preserve layout geometry.
no setterinherited
parent ↔ RenderObject?
getter/setter pairinherited
parentData ↔ Object?
getter/setter pairinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
separator ↔ String
getter/setter pair
size ↔ Size
getter/setter pairinherited

Methods

attach(RenderObject child) → void
inherited
clearPaintDirty() → void
Marks this render object's paint state as clean.
inherited
clearPaintDirtySubtree() → void
Marks this render object and all descendants as paint-clean.
inherited
detach(RenderObject child) → void
inherited
detachAll(Iterable<RenderObject> detachedChildren) → void
inherited
dispose() → void
inherited
hitTest(HitTestResult result, {required double localX, required double localY}) → bool
Performs hit-testing at (localX, localY) in this object's coordinate space. Adds matching entries to result, deepest first.
override
invalidateChildPaintCache() → void
Marks the cached child paint output as stale.
layout(BoxConstraints constraints) → void
override
markDescendantNeedsPaint() → void
Called when a descendant render object's paint output has changed.
override
markNeedsPaintOnly() → void
Marks this render object as needing paint without invalidating descendant-specific paint caches.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
paint() → String
override
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited