CupertinoListWheelScrollView class
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatefulWidget
- CupertinoPicker
- CupertinoListWheelScrollView
- Available Extensions
Constructors
-
CupertinoListWheelScrollView.useDelegate({Key? key, required double itemExtent, required ValueChanged<
int> ? onSelectedItemChanged, required ListWheelChildDelegate delegate, Color? backgroundColor, double diameterRatio = _kDefaultDiameterRatio, double magnification = 1.0, double offAxisFraction = 0.0, FixedExtentScrollController? scrollController, Widget? selectionOverlay = const CupertinoPickerDefaultSelectionOverlay(), double squeeze = _kSqueeze, bool useMagnifier = false})
Properties
- backgroundColor → Color?
-
Background color behind the children.
finalinherited
- childDelegate → ListWheelChildDelegate
-
A delegate that lazily instantiates children.
no setteroverride
- delegate → ListWheelChildDelegate
-
final
- diameterRatio → double
-
Relative ratio between this picker's height and the simulated cylinder's diameter.
finalinherited
- hashCode → int
-
The hash code for this object.
no setterinherited
- itemExtent → double
-
The uniform height of all children.
finalinherited
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
- magnification → double
-
The zoomed-in rate of the magnifier, if it is used.
finalinherited
- offAxisFraction → double
-
How much the wheel is horizontally off-center, as a fraction of its width.
This property creates the visual effect of looking at a vertical wheel from
its side where its vanishing points at the edge curves to one side instead
of looking at the wheel head-on.
finalinherited
-
onSelectedItemChanged
→ ValueChanged<
int> ? -
An option callback when the currently centered item changes.
finalinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- scrollController → FixedExtentScrollController?
-
A FixedExtentScrollController to read and control the current item, and
to set the initial item.
finalinherited
- selectionOverlay → Widget?
-
A widget overlaid on the picker to highlight the currently selected entry.
finalinherited
- squeeze → double
-
The angular compactness of the children on the wheel.
finalinherited
- useMagnifier → bool
-
Whether to use the magnifier for the center item of the wheel.
finalinherited
Methods
-
createElement(
) → StatefulElement -
Creates a StatefulElement to manage this widget's location in the tree.
inherited
-
createState(
) → State< StatefulWidget> -
Creates the mutable state for this widget at a given location in the tree.
inherited
-
debugDescribeChildren(
) → List< DiagnosticsNode> -
Returns a list of
DiagnosticsNodeobjects describing this node's children.inherited -
debugFillProperties(
DiagnosticPropertiesBuilder properties) → void -
Add additional properties associated with the node.
inherited
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
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 short, textual description of this widget.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited