LongPressGestureRecognizer class
Recognizes long-press gestures.
A long-press is a pointer-down held for duration without moving beyond kTouchSlop cells. On timer expiry the gesture is accepted and onLongPressStart / onLongPress fire. On pointer-up after acceptance, onLongPressEnd fires.
- Inheritance
-
- Object
- GestureRecognizer
- LongPressGestureRecognizer
Constructors
Properties
- duration ↔ Duration
-
How long the pointer must be held before the long-press triggers.
getter/setter pair
- hashCode → int
-
The hash code for this object.
no setterinherited
- initialPosition ↔ Offset?
-
Position where the pointer first went down.
getter/setter pairinherited
- onLongPress ↔ GestureLongPressCallback?
-
Callback fired when the long-press is first recognized.
getter/setter pair
- onLongPressEnd ↔ GestureLongPressEndCallback?
-
Callback fired when the pointer is released after a long-press.
getter/setter pair
- onLongPressStart ↔ GestureLongPressStartCallback?
-
Callback fired with position details when the long-press starts.
getter/setter pair
-
pendingCmds
→ List<
Cmd> -
Commands accumulated from callbacks during the current event.
finalinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- state ↔ GestureRecognizerState
-
Current lifecycle state.
getter/setter pairinherited
Methods
-
acceptGesture(
) → void -
Called when this recognizer wins the arena.
override
-
addCmd(
Cmd? cmd) → void -
Adds a command to pendingCmds if non-null.
inherited
-
dispose(
) → void -
Cleans up resources. Called when the recognizer is no longer needed.
override
-
handlePointerDown(
MouseMsg event, Offset localPosition) → void -
Called when a pointer-down event occurs.
override
-
handlePointerMove(
MouseMsg event, Offset localPosition) → void -
Called when a pointer-move event occurs.
override
-
handlePointerUp(
MouseMsg event, Offset localPosition) → void -
Called when a pointer-up event occurs.
override
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
rejectGesture(
) → void -
Called when this recognizer loses the arena.
override
-
reset(
) → void -
Resets the recognizer to GestureRecognizerState.ready.
override
-
resolve(
GestureDisposition disposition) → void -
Requests acceptance or rejection from the arena.
inherited
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited
Constants
- kTouchSlop → const double
- Maximum distance in cells the pointer can move before cancelling.