PrismBreakpoint class

A set of well-known width thresholds that map screen sizes to semantic window classes.

Mirrors Material Design 3's canonical breakpoints so apps feel native on every device class. A breakpoint value is the minimum width required to reach that class.

Annotations

• @immutable

Constructors

PrismBreakpoint(double minWidth)

Creates a breakpoint at minWidth.

const

Properties

hashCode → int

The hash code for this object.

no setter, override

minWidth → double

The minimum viewport width (logical pixels) for this window class.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

isSameClass(PrismBreakpoint other) → bool

Returns true if this breakpoint is exactly other.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

override

Operators

operator ==(Object other) → bool

The equality operator.

override

Static Methods

resolve(double width, {double compact = 0, double mediumWidth = 600, double expanded = 840, double extraLarge = 1200}) → PrismBreakpoint

Resolves which window class width falls into, using token-driven thresholds when they are supplied.

resolveStandard(double width) → PrismBreakpoint

Resolves which built-in class width falls into.

Constants

all → const List<PrismBreakpoint>

All built-in breakpoints in ascending order.

compact → const PrismBreakpoint

Compact window: phones in portrait. Width below 600.

expanded → const PrismBreakpoint

Expanded window: tablets, laptops, desktops. Width 840–1199.

extraLarge → const PrismBreakpoint

Extra-large window: large desktops, foldables opened. Width 1200+.

medium → const PrismBreakpoint

Medium window: phones in landscape, small tablets. Width 600–839.