LongPressDraggable< T> class
Makes its child draggable starting from long press.
- Inheritance
- Object
- Diagnosticable
- DiagnosticableTree
- Widget
- StatefulWidget
- Draggable<
T> - LongPressDraggable
Constructors
- LongPressDraggable({Key key, @required Widget child, @required Widget feedback, T data, Axis axis, Widget childWhenDragging, Offset feedbackOffset: Offset.zero, DragAnchor dragAnchor: DragAnchor.child, int maxSimultaneousDrags, VoidCallback onDragStarted, DraggableCanceledCallback onDraggableCanceled, DragEndCallback onDragEnd, VoidCallback onDragCompleted, bool hapticFeedbackOnStart: true, bool ignoringFeedbackSemantics: true })
-
Creates a widget that can be dragged starting from long press. [...]
const
Properties
- hapticFeedbackOnStart → bool
-
Whether haptic feedback should be triggered on drag start.
final
- affinity → Axis
-
Controls how this widget competes with other gestures to initiate a drag. [...]
final, inherited
- axis → Axis
-
The Axis to restrict this draggable's movement, if specified. [...]
final, inherited
- child → Widget
-
The widget below this widget in the tree. [...]
final, inherited
- childWhenDragging → Widget
-
The widget to display instead of child when one or more drags are under way. [...]
final, inherited
- data → T
-
The data that will be dropped by this draggable.
final, inherited
- dragAnchor → DragAnchor
-
Where this widget should be anchored during a drag.
final, inherited
- feedback → Widget
-
The widget to show under the pointer when a drag is under way. [...]
final, inherited
- feedbackOffset → Offset
-
The feedbackOffset can be used to set the hit test target point for the
purposes of finding a drag target. It is especially useful if the feedback
is transformed compared to the child.
final, inherited
- hashCode → int
-
The hash code for this object. [...]
read-only, inherited
- ignoringFeedbackSemantics → bool
-
Whether the semantics of the feedback widget is ignored when building
the semantics tree. [...]
final, inherited
- key → Key
-
Controls how one widget replaces another widget in the tree. [...]
final, inherited
- maxSimultaneousDrags → int
-
How many simultaneous drags to support. [...]
final, inherited
- onDragCompleted → VoidCallback
-
Called when the draggable is dropped and accepted by a DragTarget. [...]
final, inherited
- onDragEnd → DragEndCallback
-
Called when the draggable is dropped. [...]
final, inherited
- onDraggableCanceled → DraggableCanceledCallback
-
Called when the draggable is dropped without being accepted by a DragTarget. [...]
final, inherited
- onDragStarted → VoidCallback
-
Called when the draggable starts being dragged.
final, inherited
- runtimeType → Type
-
A representation of the runtime type of the object.
read-only, inherited
Methods
-
createRecognizer(
GestureMultiDragStartCallback onStart) → DelayedMultiDragGestureRecognizer -
Creates a gesture recognizer that recognizes the start of the drag. [...]
override
-
createElement(
) → StatefulElement -
Creates a StatefulElement to manage this widget's location in the tree. [...]
inherited
-
createState(
) → _DraggableState< T> -
Creates the mutable state for this widget at a given location in the tree. [...]
inherited
-
debugDescribeChildren(
) → List< DiagnosticsNode> -
Returns a list of DiagnosticsNode objects describing this node's
children. [...]
@protected, inherited
-
debugFillProperties(
DiagnosticPropertiesBuilder properties) → void -
Add additional properties associated with the node. [...]
inherited
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a non-existent method or property is accessed. [...]
inherited
-
toDiagnosticsNode(
{String name, DiagnosticsTreeStyle style }) → DiagnosticsNode -
Returns a debug representation of the object that is used by debugging
tools and by toStringDeep. [...]
inherited
-
toString(
{DiagnosticLevel minLevel: DiagnosticLevel.debug }) → String -
Returns a string representation of this object.
inherited
-
toStringDeep(
{String prefixLineOne: '', String prefixOtherLines, DiagnosticLevel minLevel: DiagnosticLevel.debug }) → String -
Returns a string representation of this node and its descendants. [...]
inherited
-
toStringShallow(
{String joiner: ', ', DiagnosticLevel minLevel: DiagnosticLevel.debug }) → String -
Returns a one-line detailed description of the object. [...]
inherited
-
toStringShort(
) → String -
A short, textual description of this widget.
inherited
Operators
-
operator ==(
dynamic other) → bool -
The equality operator. [...]
inherited