DragController class
拖拽控制器
- Inheritance
-
- Object
- ChangeNotifier
- DragController
Constructors
Properties
- draggingEventId → String?
-
no setter
- dragOffset → Offset
-
no setter
- hashCode → int
-
The hash code for this object.
no setterinherited
- hasListeners → bool
-
Whether any listeners are currently registered.
no setterinherited
- isDragging → bool
-
no setter
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
addListener(
VoidCallback listener) → void -
Register a closure to be called when the object changes.
inherited
-
calculateNewTime(
DateTime originalTime, double hourHeight, double dayWidth) → DateTime -
dispose(
) → void -
Discards any resources used by the object. After this is called, the
object is not in a usable state and should be discarded (calls to
addListener will throw after the object is disposed).
inherited
-
endDrag(
) → void -
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
-
startDrag(
String eventId) → void -
toString(
) → String -
A string representation of this object.
inherited
-
updateDrag(
Offset delta) → void
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited