SheetOffset class abstract interface

An abstract representation of a sheet's position.

It is used in various contexts by sheets, for example, to define how much of the sheet is initially visible at the first build or to limit the range within which the sheet can be dragged.

Implementers

• AbsoluteSheetOffset
• ProportionalToViewportSheetOffset
• RelativeSheetOffset

Annotations

• @immutable

Constructors

SheetOffset.new(double factor)

Creates an anchor that positions the sheet proportionally to its content height.

const

factory

SheetOffset.absolute(double value)

Creates an anchor that represents a fixed position in offset.

const

factory

SheetOffset.proportionalToViewport(double factor)

const

factory

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

resolve(ViewportLayout metrics) → double

Resolves the position to an actual value in pixels.

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited