SaveLayer class
A widget, which paints its child into a separate save layer.
The Paint, that is used for the save layer, can be set through paint.
Widgets that need compositing will only be partially or not at all painted
into the save layer. This can cause unexpected results, which is why
widgets that need compositing will cause an exception in debug mode, when
used as the child. To disable this check, set
debugCheckChildDoesNotNeedCompositing to false
.
- Inheritance
- Available extensions
Constructors
- SaveLayer.new({Key? key, Paint? paint, bool debugCheckChildDoesNotNeedCompositing = true, Widget? child})
-
Creates a widget, which paints its
child
into a separate save layer.const
Properties
- child → Widget?
-
The widget which will be painted into it's own save layer.
final
- debugCheckChildDoesNotNeedCompositing → bool
-
Whether to check that child does not need compositing.
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
- paint → Paint?
-
The Paint to use for the save layer.
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
createElement(
) → SingleChildRenderObjectElement -
RenderObjectWidgets always inflate to a RenderObjectElement subclass.
inherited
-
createRenderObject(
BuildContext context) → RenderObject -
Creates an instance of the RenderObject class that this
RenderObjectWidget represents, using the configuration described by this
RenderObjectWidget.
override
-
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.
override
-
didUnmountRenderObject(
covariant RenderObject renderObject) → void -
This method is called when a RenderObject that was previously
associated with this widget is removed from the render tree.
The provided RenderObject will be of the same type as the one created by
this widget's createRenderObject method.
inherited
-
go(
BuildContext context, {WidgetBuilder? wb, bool replace = false}) → void -
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
routeName(
) → String -
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, int wrapWidth = 65}) → 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 short, textual description of this widget.
inherited
-
updateRenderObject(
BuildContext context, covariant RenderSaveLayer renderObject) → void -
Copies the configuration described by this RenderObjectWidget to the
given RenderObject, which will be of the same type as returned by this
object's createRenderObject.
override
-
xAppBarMake(
double h) → Widget -
xGestureTouchContainer(
bool enable, {GestureTapCallback? onTap, GestureCancelCallback? onLongTap}) → Widget -
xInputContainer(
) → InputTouchContainer -
xLoadingContainer(
bool b, {required Widget loadingView}) → Widget -
xNoneTouchContainer(
bool enable) → Widget -
xOnPopWrapper(
bool canPop, {required void onPop(bool didPop, dynamic data)?}) → Widget -
xOnTap(
Function onTap, {bool enable = true, bool withContainer = false, int cd = 800}) → Widget -
xSafeContainer(
bool enable) → Widget -
xVisible(
bool b) → Widget
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited