MechanicalCounter class

A convenience widget that presents an interface for changing numeric values using simple touch gestures.

A container encloses the minimal size needed for a useful interaction by touch gestures. Swipe up and down or tap for single increment.

Inheritance

Constructors

MechanicalCounter({Key? key, required ValueChanged<String> onChanged, Color? color, Color? backgroundColor, dynamic format = 'number', dynamic digits = 1, dynamic initialValue = 0})

backgroundColor → Color?: Optional backgroundColor for the body of the counter. If not given, the theme's backgroundColor is used.
final
color → Color?: Optional color for numbers and symbols. If not given, the theme's primaryColor is used
final
digits → dynamic: digits defines the number of digits for the number format. For the other formats, it has no effect.
final
format → dynamic: format defines the type of target number. Currently it could be number (default) or time in the form of: hh:mm:ss, hh:mm
final
hashCode → int: The hash code for this object.
no setterinherited
initialValue → dynamic: initialValue set the starting values for each digit. If the value given has more digits than digits, extra digits are discarded. For the clock formats, initialValues are the digits without colons (:). Ie: for 23:59:59 -> initialValue: 235959.
final
key → Key?: Controls how one widget replaces another widget in the tree.
finalinherited
onChanged → ValueChanged<String>: Required onChanged is called when the user modifies the number by tapping or swipping on the counter's face.
final
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited
value → dynamic: Actual display value as a String, according to format.
no setter

build(BuildContext context) → Widget: Describes the part of the user interface represented by this widget.
override
createElement() → StatelessElement: Creates a StatelessElement to manage this widget's location in the tree.
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
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