A key indicating that the URL passed to your app contained custom annotation data from the source app.
- iOS 3.2+
- tvOS 9.0+
The presence of this key indicates that custom data was provided by the app that requested the opening of the URL. The value of this key is a property-list object containing the custom data. The same object is also passed to the annotation parameter of the
application: method. The contents of this property-list object are specific to the app that made the request.