Signal class Null safety
The base class of signals.
An signal is emitted when users or external changes interact with the chart. They may trigger selections if defined.
They usually carry properties of information about the interaction.
See also:
- SignalUpdater, updates a value when a signal occurs.
- Selection, to define a selection.
- Implementers
Constructors
- Signal()
Properties
- hashCode → int
-
The hash code for this object.
read-onlyinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
read-onlyinherited
- type → SignalType
-
type of the signal.
read-only
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