A Key is an identifier for Widgets and Elements.
A new widget will only be used to update an existing element if its key is the same as the key of the current widget associted with the element.
Keys must be unique amongst the Elements with the same parent.
Subclasses of Key should either subclass LocalKey or GlobalKey.
Constructors
Properties
- hashCode → int
-
Get a hash code for this object.
read-only, inherited - runtimeType → Type
-
A representation of the runtime type of the object.
read-only, inherited
Operators
-
operator ==(
other) → bool -
The equality operator.
inherited
Methods
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a non-existent method or property is accessed.
inherited -
toString(
) → String -
Returns a string representation of this object.
inherited