createRecognizer method Null safety
- GestureMultiDragStartCallback onStart
override
Creates a gesture recognizer that recognizes the start of the drag.
Subclasses can override this function to customize when they start recognizing a drag.
Implementation
@override
DelayedMultiDragGestureRecognizer createRecognizer(GestureMultiDragStartCallback onStart) {
return DelayedMultiDragGestureRecognizer(delay: delay)
..onStart = (Offset position) {
final Drag? result = onStart(position);
if (result != null && hapticFeedbackOnStart) {
HapticFeedback.selectionClick();
}
return result;
};
}