selectionContainerViewAboveText
An optional view you supply to draw text selection above the text.
Declaration
optional var selectionContainerViewAboveText: UIView? { get }Discussion
The default value is nil. If you supply a view to this property, the framework layers the supplied view above textInputView to render text selection above the text, and includes text-selection handles in the rendering.
If you implement text selection using a textInputView subview instead, leave the value nil.