annotationAt method
Implementation
Future<UPdfAnnotationInfo?> annotationAt(int pageIndex, Offset devicePoint) async {
final List<UPdfAnnotationInfo> list = await annotationsOn(pageIndex);
final UDocPageInfo info = viewer.pageInfo(pageIndex);
final Offset point = devicePointToPdf(info, devicePoint);
for (final UPdfAnnotationInfo annotation in list.reversed) {
if (annotation.rect.inflate(3).contains(point)) return annotation;
}
return null;
}