onMoveCursorBackwardByCharacter property Null safety

MoveCursorHandler? onMoveCursorBackwardByCharacter

The handler for SemanticsAction.moveCursorBackwardByCharacter.

This handler is invoked when the user wants to move the cursor in a text field backward by one character.

TalkBack users can trigger this by pressing the volume down key while the input focus is in a text field.

Implementation

MoveCursorHandler? get onMoveCursorBackwardByCharacter => _onMoveCursorBackwardByCharacter;
void onMoveCursorBackwardByCharacter=(MoveCursorHandler? value)

Implementation

set onMoveCursorBackwardByCharacter(MoveCursorHandler? value) {
  assert(value != null);
  _addAction(SemanticsAction.moveCursorBackwardByCharacter, (Object? args) {
    final bool extentSelection = args! as bool;
    value!(extentSelection);
  });
  _onMoveCursorBackwardByCharacter = value;
}