InputBorder class Null safety

Defines the appearance of an InputDecorator's border.

An input decorator's border is specified by InputDecoration.border.

The border is drawn relative to the input decorator's "container" which is the optionally filled area above the decorator's helper, error, and counter.

Input border's are decorated with a line whose weight and color are defined by borderSide. The input decorator's renderer animates the input border's appearance in response to state changes, like gaining or losing the focus, by creating new copies of its input border with copyWith.

See also:

Inheritance
Implementers

Constructors

InputBorder({BorderSide borderSide = BorderSide.none})
Creates a border for an InputDecorator. [...]
const

Properties

borderSide BorderSide
Defines the border line's color and weight. [...]
final
dimensions EdgeInsetsGeometry
The widths of the sides of this border represented as an EdgeInsets. [...]
read-only, 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
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited

Methods

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}) InputBorder
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. [...]
inherited
getOuterPath(Rect rect, {TextDirection? textDirection}) Path
Create a Path that describes the outer edge of the border. [...]
inherited
lerpFrom(ShapeBorder? a, double t) ShapeBorder?
Linearly interpolates from another ShapeBorder (possibly of another class) to this. [...]
@protected, inherited
lerpTo(ShapeBorder? b, double t) ShapeBorder?
Linearly interpolates from this to another ShapeBorder (possibly of another class). [...]
@protected, inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
inherited
paint(Canvas canvas, Rect rect, {double? gapStart, double gapExtent = 0.0, double gapPercentage = 0.0, TextDirection? textDirection}) → void
Paint this input border on canvas. [...]
override
scale(double t) ShapeBorder
Creates a copy of this border, scaled by the factor t. [...]
inherited
toString() String
A string representation of this object. [...]
inherited

Operators

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

Constants

none → const InputBorder
No input border. [...]
_NoInputBorder()