setOffset method
Implementation
Offset setOffset() {
final resultBox = resultKey.currentContext?.findRenderObject() as RenderBox;
final resultOffset = resultBox.localToGlobal(Offset.zero);
_resultWidth = resultBox.size.width;
return Offset(
_setOffsetDx(resultBox: resultBox, resultOffset: resultOffset),
_setOffsetDy(resultBox: resultBox, resultOffset: resultOffset),
);
}