MaterialStateOutlineInputBorder class Null safety

Defines a OutlineInputBorder that is also a MaterialStateProperty.

This class exists to enable widgets with OutlineInputBorder valued properties to also accept MaterialStateProperty<OutlineInputBorder> values. A material state input border property represents a text style which depends on a widget's "interactive state". This state is represented as a Set of MaterialStates, like MaterialState.pressed, MaterialState.focused and MaterialState.hovered.

MaterialStateOutlineInputBorder should only be used with widgets that document their support, like InputDecoration.border.

To use a MaterialStateOutlineInputBorder, you can either:

  1. Create a subclass of MaterialStateOutlineInputBorder and implement the abstract resolve method.
  2. Use MaterialStateOutlineInputBorder.resolveWith and pass in a callback that will be used to resolve the color in the given states.

If a MaterialStateOutlineInputBorder is used for a property or a parameter that doesn't support resolving MaterialStateProperty<OutlineInputBorder>s, then its default color value will be used for all states.

To define a const MaterialStateOutlineInputBorder, you'll need to extend MaterialStateOutlineInputBorder and override its resolve method. You'll also need to provide a defaultValue to the super constructor, so that we can know at compile-time what its default color is.

Implemented types


Abstract const constructor. This constructor enables subclasses to provide const constructors so that they can be used in const expressions.


borderRadius BorderRadius
The radii of the border's rounded rectangle corners.
final, inherited
borderSide BorderSide
Defines the border line's color and weight.
final, inherited
dimensions EdgeInsetsGeometry
The widths of the sides of this border represented as an EdgeInsets.
read-only, inherited
gapPadding double
Horizontal padding on either side of the border's InputDecoration.labelText width gap.
final, inherited
hashCode int
The hash code for this object.
read-only, inherited
isOutline bool
True if this border will enclose the InputDecorator's container.
read-only, inherited
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited


add(ShapeBorder other, {bool reversed = false}) ShapeBorder?
Attempts to create a new object that represents the amalgamation of this border and the other border.
@protected, inherited
copyWith({BorderSide? borderSide, BorderRadius? borderRadius, double? gapPadding}) OutlineInputBorder
Creates a copy of this input border with the specified borderSide.
getInnerPath(Rect rect, {TextDirection? textDirection}) Path
Create a Path that describes the inner edge of the border.
getOuterPath(Rect rect, {TextDirection? textDirection}) Path
Create a Path that describes the outer edge of the border.
lerpFrom(ShapeBorder? a, double t) ShapeBorder?
Linearly interpolates from another ShapeBorder (possibly of another class) to this.
lerpTo(ShapeBorder? b, double t) ShapeBorder?
Linearly interpolates from this to another ShapeBorder (possibly of another class).
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed.
paint(Canvas canvas, Rect rect, {double? gapStart, double gapExtent = 0.0, double gapPercentage = 0.0, TextDirection? textDirection}) → void
Draw a rounded rectangle around rect using borderRadius.
resolve(Set<MaterialState> states) InputBorder
Returns a InputBorder that's to be used when a Material component is in the specified state.
scale(double t) OutlineInputBorder
Creates a copy of this border, scaled by the factor t.
toString() String
A string representation of this object.


operator +(ShapeBorder other) ShapeBorder
Creates a new border consisting of the two borders on either side of the operator.
operator ==(Object other) bool
The equality operator.

Static Methods

resolveWith(MaterialPropertyResolver<InputBorder> callback) MaterialStateOutlineInputBorder
Creates a MaterialStateOutlineInputBorder from a MaterialPropertyResolver<InputBorder> callback function.