activityViewController(_:subjectForActivityType:)
For activities that support a subject field, returns the subject for the item.
Declaration
optional func activityViewController(_ activityViewController: UIActivityViewController, subjectForActivityType activityType: UIActivity.ActivityType?) -> StringParameters
- activityViewController:
The activity view controller object requesting information about the data item.
- activityType:
The selected activity type; may be
nil.
Return Value
A string to use as the contents of the subject field.
Discussion
When posting an item the service may provide for a separate subject field and data field, such as an email message. Implement this method if you wish to provide a subject field for services that support one.