addRemovalHandler(_:forTokenID:)
Adds a removal handler for the specified token ID.
Declaration
func addRemovalHandler(_ removalHandler: @escaping (String) -> Void, forTokenID tokenID: String)Parameters
- removalHandler:
A block to be called when the specified token is removed. This block takes a single argument:
- tokenID
The identifier of the removed token.
- tokenID:
The identifier of the token to watch for removal.
If Tokenids doesn’t contain
tokenID,insertionHandleris executed immediately.
Mentioned in
Discussion
You typically call this method in the insertionHandler passed to the token watcher initializer.
Adding a removal handler will remove any existing removal handlers for the specified token ID.