getFullHeightForCaret method Null safety
- TextPosition position
Returns the strut bounded height of the glyph at the given position.
Valid only after layout.
Implementation
double? getFullHeightForCaret(TextPosition position) {
  assert(!debugNeedsLayout);
  _layoutTextWithConstraints(constraints);
  return _textPainter.getFullHeightForCaret(position, Rect.zero);
}