TraversalDirection enum Null safety
A direction along either the horizontal or vertical axes.
This is used by the DirectionalFocusTraversalPolicyMixin, and FocusNode.focusInDirection to indicate which direction to look in for the next focus.
Constructors
- TraversalDirection()
-
const
Values
- up → const TraversalDirection
-
Indicates a direction above the currently focused widget.
TraversalDirection()
- right → const TraversalDirection
-
Indicates a direction to the right of the currently focused widget.
This direction is unaffected by the Directionality of the current context.
TraversalDirection()
- down → const TraversalDirection
-
Indicates a direction below the currently focused widget.
TraversalDirection()
- left → const TraversalDirection
-
Indicates a direction to the left of the currently focused widget.
This direction is unaffected by the Directionality of the current context.
TraversalDirection()
Properties
Methods
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a non-existent 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<
TraversalDirection> -
A constant List of the values in this enum, in order of their declaration.
[up, right, down, left]