Repository: flutter/flutter
File: packages/flutter/lib/src/widgets/autocomplete.dart (Dart)

Code before:
    if (_optionsViewController.isShowing) {
      _optionsViewController.hide();
      return null;
    } else {
      return Actions.invoke(context, intent);
    }
  }

  // A big enough height for about one item in the default
  // Autocomplete.optionsViewBuilder. The assumption is that the user likely
  // wants the list of options to move to stay on the screen rather than get any
  // smaller than this. Allows Autocomplete to work when it has very little
  // screen height available (as in b/317115348) by positioning itself on top of
  // the field, while in other cases to size itself based on the height under
  // the field.
  static const double _kMinUsableHeight = kMinInteractiveDimension;

  Widget _buildOptionsView(BuildContext context, OverlayChildLayoutInfo layoutInfo) {
    if (layoutInfo.childPaintTransform.determinant() == 0.0) {
      // The child is not visible.
      return const SizedBox.shrink();
    }
    final Size fieldSize = layoutInfo.childSize;
    final Matrix4 invertTransform = layoutInfo.childPaintTransform.clone()..invert();

    final MediaQueryData mediaQueryData = MediaQuery.of(context);
    final Rect overlayRect = mediaQueryData.padding.deflateRect(
      mediaQueryData.viewInsets.deflateRect(Offset.zero & layoutInfo.overlaySize),
    );

    // This may not work well if the paint transform has rotation in it.
    // MatrixUtils.transformRect returns the bounding rect of the rotated overlay
    // rect.
    final Rect overlayRectInField = MatrixUtils.transformRect(invertTransform, overlayRect);

    final double spaceAbove = -overlayRectInField.top;
    final double spaceBelow = overlayRectInField.bottom - fieldSize.height;
    final bool opensUp = switch (widget.optionsViewOpenDirection) {
      OptionsViewOpenDirection.up => true,
      OptionsViewOpenDirection.down => false,
      OptionsViewOpenDirection.mostSpace => spaceAbove > spaceBelow,
    };

    final double optionsViewMaxHeight = opensUp
        ? -overlayRectInField.top
        : overlayRectInField.bottom - fieldSize.height;

    final optionsViewBoundingBox = Size(
      fieldSize.width,
      math.max(optionsViewMaxHeight, _kMinUsableHeight),
    );

Review comment (suggestion):
```suggestion
final EdgeInsets mediaQueryPadding = MediaQuery.paddingOf(context);
final EdgeInsets viewInsets = MediaQuery.viewInsetsOf(context);

final Rect overlayRect = mediaQueryPadding.deflateRect(
  viewInsets.deflateRect(Offset.zero & layoutInfo.overlaySize),
);
```

Code after:
    if (_optionsViewController.isShowing) {
      _optionsViewController.hide();
      return null;
    } else {
      return Actions.invoke(context, intent);
    }
  }

  // A big enough height for about one item in the default
  // Autocomplete.optionsViewBuilder. The assumption is that the user likely
  // wants the list of options to move to stay on the screen rather than get any
  // smaller than this. Allows Autocomplete to work when it has very little
  // screen height available (as in b/317115348) by positioning itself on top of
  // the field, while in other cases to size itself based on the height under
  // the field.
  static const double _kMinUsableHeight = kMinInteractiveDimension;

  Widget _buildOptionsView(BuildContext context, OverlayChildLayoutInfo layoutInfo) {
    if (layoutInfo.childPaintTransform.determinant() == 0.0) {
      // The child is not visible.
      return const SizedBox.shrink();
    }
    final Size fieldSize = layoutInfo.childSize;
    final Matrix4 invertTransform = layoutInfo.childPaintTransform.clone()..invert();

    final EdgeInsets mediaQueryPadding = MediaQuery.paddingOf(context);
    final EdgeInsets viewInsets = MediaQuery.viewInsetsOf(context);

    final Rect overlayRect = mediaQueryPadding.deflateRect(
      viewInsets.deflateRect(Offset.zero & layoutInfo.overlaySize),
    );

    // This may not work well if the paint transform has rotation in it.
    // MatrixUtils.transformRect returns the bounding rect of the rotated overlay
    // rect.
    final Rect overlayRectInField = MatrixUtils.transformRect(invertTransform, overlayRect);

    final double spaceAbove = -overlayRectInField.top;
    final double spaceBelow = overlayRectInField.bottom - fieldSize.height;
    final bool opensUp = switch (widget.optionsViewOpenDirection) {
      OptionsViewOpenDirection.up => true,
      OptionsViewOpenDirection.down => false,
      OptionsViewOpenDirection.mostSpace => spaceAbove > spaceBelow,
    };

    final double optionsViewMaxHeight = opensUp
        ? -overlayRectInField.top
        : overlayRectInField.bottom - fieldSize.height;

    final optionsViewBoundingBox = Size(
      fieldSize.width,