onSecondaryLongPressUp property Null safety
final
A pointer that has triggered a long-press with a secondary button has stopped contacting the screen.
See also:
- kSecondaryButton, the button this callback responds to.
- onSecondaryLongPressEnd, which has the same timing but has gesture details.
Implementation
final GestureLongPressUpCallback? onSecondaryLongPressUp;