DragController class
A controller for managing drag state externally.
- Inheritance
-
- Object
- ChangeNotifier
- DragController
Constructors
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
- hasListeners → bool
-
Whether any listeners are currently registered.
no setterinherited
- isDragging → bool
-
Whether a drag is currently active.
no setter
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- state → DragState
-
The current drag state.
no setter
Methods
-
addListener(
VoidCallback listener) → void -
Register a closure to be called when the object changes.
inherited
-
cancel(
) → void - Cancels the drag operation.
-
dispose(
) → void -
Discards any resources used by the object.
inherited
-
end(
) → void - Ends the drag operation.
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
notifyListeners(
) → void -
Call all the registered listeners.
inherited
-
removeListener(
VoidCallback listener) → void -
Remove a previously registered closure from the list of closures that are
notified when the object changes.
inherited
-
start(
Offset position) → void - Starts a drag operation.
-
toString(
) → String -
A string representation of this object.
inherited
-
update(
Offset position, Offset delta) → void - Updates the drag position.
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited