BreakpointSpec class interface

A contract for defining layout breakpoints based on screen width.

This interface class ensures that any implementing class or enum provides a breakpoint value, which represents the minimum screen width (in logical pixels) at which the breakpoint becomes active.

Typically used with ResponsiveBreakpointTheme to adapt layouts responsively.

Example:

enum MyBreakpoints implements BreakpointSpec {
  sm(breakpoint: 600),
  md(breakpoint: 960),
  lg(breakpoint: 1280);

  @override
  final double breakpoint;

  const MyBreakpoints({required this.breakpoint});
}
Available extensions

Constructors

BreakpointSpec.new({required double breakpoint})
Creates a BreakpointSpec with a required breakpoint value.
const

Properties

breakpoint → double
The minimum width (in logical pixels) at which this breakpoint applies.
final
hashCode → int
The hash code for this object.
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() → String
A string representation of this object.
inherited

Operators

operator <(BreakpointSpec other) → bool

Available on BreakpointSpec, provided by the BreakpointComparison extension

Returns true if this breakpoint is less than other.
operator <=(BreakpointSpec other) → bool

Available on BreakpointSpec, provided by the BreakpointComparison extension

Returns true if this breakpoint is less than or equal to other.
operator ==(Object other) → bool
The equality operator.
inherited
operator >(BreakpointSpec other) → bool

Available on BreakpointSpec, provided by the BreakpointComparison extension

Returns true if this breakpoint is greater than other.
operator >=(BreakpointSpec other) → bool

Available on BreakpointSpec, provided by the BreakpointComparison extension

Returns true if this breakpoint is greater than or equal to other.