PositionType enum
Defines how an element establishes a positioning context for its absolutely positioned children.
This enum controls whether an element acts as a reference point for positioning its absolutely positioned descendants. Similar to CSS positioning contexts, this determines which parent an absolutely positioned child will be positioned relative to.
Used in conjunction with LayoutBehavior.absolute and position properties (top, left, right, bottom) to establish the positioning hierarchy.
Values
- none → const PositionType
-
Does not establish a positioning context (default).
Absolutely positioned children will skip this element and position themselves relative to the nearest ancestor with PositionType.relative.
This is similar to CSS
position: staticwhere the element does not create a containing block for absolute positioning. - relative → const PositionType
-
Establishes a positioning context for absolutely positioned children.
Absolutely positioned children will position themselves relative to this element's top-left corner (or edges based on their position properties).
This is similar to CSS
position: relativewhere the element creates a containing block for absolutely positioned descendants.
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
- index → int
-
A numeric identifier for the enumerated value.
no setterinherited
- name → String
-
Available on Enum, provided by the EnumName extension
The name of the enum value.no setter - 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 ==(
Object other) → bool -
The equality operator.
inherited
Constants
-
values
→ const List<
PositionType> - A constant List of the values in this enum, in order of their declaration.