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.
Constants
- down → const TraversalDirection
-
Indicates a direction below the currently focused widget.
const TraversalDirection(2)
- 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.
const TraversalDirection(3)
- 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.
const TraversalDirection(1)
- up → const TraversalDirection
-
Indicates a direction above the currently focused widget.
const TraversalDirection(0)
-
values
→ const List<
TraversalDirection> -
A constant List of the values in this enum, in order of their declaration.
const List<
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. [...]
override
Operators
-
operator ==(
Object other) → bool -
The equality operator. [...]
inherited