NumberPicker class
NumberPicker is a widget designed to pick a number between #minValue and #maxValue
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatelessWidget
- NumberPicker
Constructors
-
NumberPicker.integer({Key? key, required int initialValue, required int minValue, required int maxValue, required ValueChanged<
num> onChanged, bool enabled = true, TextMapper? textMapper, double itemExtent = kDefaultItemExtent, double? listViewWidth = kDefaultListViewCrossAxisSize, int step = 1, Axis scrollDirection = Axis.vertical, bool zeroPad = false, bool highlightSelectedValue = true, Decoration? decoration, bool haptics = false, TextStyle? selectedRowStyle, TextStyle? unselectedRowStyle, bool? isShowMonthName = false, bool? isJalali = false}) - constructor for integer number picker
Properties
- decimalPlaces → int
-
inidcates how many decimal places to show
e.g. 0=>
1,2,3..., 1=>1.0, 1.1, 1.2...2=>1.00, 1.01, 1.02...final - decimalScrollController → ScrollController?
-
ScrollController used for decimal list
final
- decoration → Decoration?
-
Decoration to apply to central box where the selected value is placed
final
- enabled → bool
-
build the text of each item on the picker
final
- haptics → bool
-
Whether to trigger haptic pulses or not
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- highlightSelectedValue → bool
-
If currently selected value should be highlighted
final
- integerItemCount → int
-
Amount of items
final
- intScrollController → ScrollController
-
ScrollController used for integer list
final
- isJalali → bool?
-
final
- isShowMonthName → bool?
-
final
- itemExtent → double
-
height of every list element in pixels
final
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
- listViewHeight → double
-
height of list view in pixels
final
- listViewWidth → double?
-
width of list view in pixels
final
- maxValue → int
-
max value user can pick
final
- minValue → int
-
min value user can pick
final
-
onChanged
→ ValueChanged<
num> -
called when selected value changes
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- scrollDirection → Axis
-
Direction of scrolling
final
- selectedDecimalValue → int
-
Currently selected decimal value
final
- selectedIntValue → int
-
Currently selected integer value
final
- selectedRowStyle → TextStyle?
-
Set selected numbers font color
final
- step → int
-
Step between elements. Only for integer datePicker
Examples:
if step is 100 the following elements may be 100, 200, 300...
if min=0, max=6, step=3, then items will be 0, 3 and 6
if min=0, max=5, step=3, then items will be 0 and 3.
final
- textMapper → TextMapper?
-
build the text of each item on the picker
final
- unselectedRowStyle → TextStyle?
-
Set unselected numbers font color
final
- zeroPad → bool
-
Pads displayed integer values up to the length of maxValue
final
Methods
-
animateDecimal(
int decimalValue) → void - Used to animate decimal part of double value to new selected value
-
animateDecimalAndInteger(
double valueToSelect) → void - Used to animate decimal number picker to selected value
-
animateInt(
int valueToSelect) → void - Used to animate integer number picker to new selected value
-
animateIntToIndex(
int index) → void - Used to animate integer number picker to new selected index
-
build(
BuildContext context) → Widget -
main widget
override
-
createElement(
) → StatelessElement -
Creates a StatelessElement to manage this widget's 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
-
getDisplayedValue(
int value) → String -
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
Constants
- kDefaultItemExtent → const double
- height of every list element for normal number picker width of every list element for horizontal number picker
- kDefaultListViewCrossAxisSize → const double
- width of list view for normal number picker height of list view for horizontal number picker