VerticalDirection enum Null safety
A direction in which boxes flow vertically.
This is used by the flex algorithm (e.g. Column) to decide in which direction to draw boxes.
This is also used to disambiguate
end values (e.g.
MainAxisAlignment.start or CrossAxisAlignment.end).
- TextDirection, which controls the same thing but horizontally.
- up → const VerticalDirection
Boxes should start at the bottom and be stacked vertically towards the top.
The "start" is at the bottom, the "end" is at the top.
- down → const VerticalDirection
Boxes should start at the top and be stacked vertically towards the bottom.
The "start" is at the top, the "end" is at the bottom.
Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed.
) → String
A string representation of this object.
Object other) → bool
The equality operator.
→ const List<
A constant List of the values in this enum, in order of their declaration.