iOSSetAnnotationIsDirty abstract method
iOS only. Sets the dirty state of a specific annotation.
This maps to annotation.isDirty = value in the iOS SDK.
Setting to false can prevent an annotation from being included in save operations.
Throws an error on Android (no per-annotation dirty state) and Web.
Implementation
Future<bool> iOSSetAnnotationIsDirty(
int pageIndex, String annotationId, bool isDirty);