PlatformViewLayer class Null safety

A layer that shows an embedded UIView on iOS.

Inheritance

Constructors

PlatformViewLayer({required Rect rect, required int viewId})
Creates a platform view layer. [...]

Properties

alwaysNeedsAddToScene → bool
Subclasses may override this to true to disable retained rendering.
@protected, read-only, inherited
attached → bool
Whether this node is in a tree whose root is attached to something. [...]
read-only, inherited
debugCreator ↔ Object?
The object responsible for creating this layer. [...]
read / write, inherited
debugDisposed → bool
If asserts are enabled, returns whether dispose has been called since the last time any retained resources were created. [...]
read-only, inherited
debugHandleCount → int
Returns the number of objects holding a LayerHandle to this layer. [...]
read-only, inherited
debugSubtreeNeedsAddToScene → bool?
Whether this or any descendant layer in the subtree needs addToScene. [...]
@visibleForTesting, read-only, inherited
depth → int
The depth of this node in the tree. [...]
read-only, inherited
engineLayer ↔ EngineLayer?
Stores the engine layer created for this layer in order to reuse engine resources across frames for better app performance. [...]
@protected, @protected, @visibleForTesting, @visibleForTesting, read / write, inherited
hashCode → int
The hash code for this object. [...]
read-only, inherited
nextSibling → Layer?
This layer's next sibling in the parent layer's child list.
read-only, inherited
owner → Object?
The owner for this node (null if unattached). [...]
read-only, inherited
parent → ContainerLayer?
This layer's parent in the layer tree. [...]
read-only, inherited
previousSibling → Layer?
This layer's previous sibling in the parent layer's child list.
read-only, inherited
rect → Rect
Bounding rectangle of this layer in the global coordinate space.
final
runtimeType → Type
A representation of the runtime type of the object.
read-only, inherited
viewId → int
The unique identifier of the UIView displayed on this layer. [...]
final

Methods

addToScene(SceneBuilder builder, [Offset layerOffset = Offset.zero]) → void
Override this method to upload this layer to the engine. [...]
override
adoptChild(covariant AbstractNode child) → void
Mark the given node as being a child of this node. [...]
inherited
attach(covariant Object owner) → void
Mark this node as attached to the given owner. [...]
@mustCallSuper, inherited
debugDescribeChildren() → List<DiagnosticsNode>
Returns a list of DiagnosticsNode objects describing this node's children. [...]
inherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node. [...]
inherited
debugMarkClean() → void
Mark that this layer is in sync with engine. [...]
@visibleForTesting, inherited
detach() → void
Mark this node as detached. [...]
@mustCallSuper, inherited
dispose() → void
Clears any retained resources that this layer holds. [...]
@mustCallSuper, @protected, @visibleForTesting, inherited
dropChild(covariant AbstractNode child) → void
Disconnect the given node from this node. [...]
inherited
find<S extends Object>(Offset localPosition) → S?
Search this layer and its subtree for the first annotation of type S under the point described by localPosition. [...]
inherited
findAllAnnotations<S extends Object>(Offset localPosition) → AnnotationResult<S>
Search this layer and its subtree for all annotations of type S under the point described by localPosition. [...]
inherited
findAnnotations<S extends Object>(AnnotationResult<S> result, Offset localPosition, {required bool onlyFirst}) → bool
Search this layer and its subtree for annotations of type S at the location described by localPosition. [...]
@protected, inherited
markNeedsAddToScene() → void
Mark that this layer has changed and addToScene needs to be called.
@protected, @visibleForTesting, inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
inherited
redepthChild(AbstractNode child) → void
Adjust the depth of the given child to be greater than this node's own depth. [...]
@protected, inherited
redepthChildren() → void
Adjust the depth of this node's children, if any. [...]
inherited
remove() → void
Removes this layer from its parent layer's child list. [...]
@mustCallSuper, inherited
toDiagnosticsNode({String? name, DiagnosticsTreeStyle? style}) → DiagnosticsNode
Returns a debug representation of the object that is used by debugging tools and by DiagnosticsNode.toStringDeep. [...]
inherited
toString({DiagnosticLevel minLevel = DiagnosticLevel.info}) → String
A string representation of this object. [...]
inherited
toStringDeep({String prefixLineOne = '', String? prefixOtherLines, DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String
Returns a string representation of this node and its descendants. [...]
inherited
toStringShallow({String joiner = ', ', DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String
Returns a one-line detailed description of the object. [...]
inherited
toStringShort() → String
A brief description of this object, usually just the runtimeType and the hashCode. [...]
inherited
updateSubtreeNeedsAddToScene() → void
Traverses the layer subtree starting from this layer and determines whether it needs addToScene. [...]
@protected, @visibleForTesting, inherited

Operators

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