TKMDragHelper class
Class to create a drag helper. This class use flags to manipulate the drag in Widgets
The most important is define the DragDirection to understand the drag direction in the widget (Where start and end)
TKMDragHelper(
animationController: animationController,
maxSlide: 255,
maxDragStartEdge: MediaQuery.of(context).size.width - 255,
minDragStartEdge: 60,
dissableDrag: true,
orientation: DragOrientation.RigthtToLeft
);
After define DragUtils use a GestureDectector to override
- onHorizontalDragStart: dragUtils.onDragStart,
- onHorizontalDragUpdate: dragUtils.onDragUpdate,
- onHorizontalDragEnd: dragUtils.onDragEnd,
Constructors
- TKMDragHelper({required AnimationController animationController, required double maxSlide, required double maxDragStartEdge, required double minDragStartEdge, required DragDirection direction, bool dissableDrag = false})
Properties
- animationController → AnimationController
-
Animation controller to link animation with the drag
final
- animationStatusBySideLeft → bool
-
no setter
- animationStatusBySideRight → bool
-
no setter
- canBeDragged ↔ bool
-
Flag to indicate is possible to drag the widget
getter/setter pair
- delta → double
-
no setter
- direction → DragDirection
-
This argument is to indicate the drag direction where start tand end
final
- dissableDrag → bool
-
If the user want to disable drag in some cases
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- maxDragStartEdge → double
-
Edge maximum to start the drag
final
- maxSlide → double
-
Maximum slide in the widget or screen
final
- minDragStartEdge → double
-
Edge minimum to start the drag
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
close(
) → void -
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
onDragEnd(
DragEndDetails details) → void - When drag is end, if is necessary complete or dismiss the animation
-
onDragStart(
DragStartDetails details) → void - When drag is start, evaluate if limit and edge is true with animationStatus
-
onDragUpdate(
DragUpdateDetails details) → void - When drag is update, update the animationController value
-
open(
) → void -
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited