Making app content searchable!
In general, you should prefer to batch update the index. However, keep in mind that the
default() index doesn’t support batching - you’ll need to create your own.
Add items with
indexSearchableItems(:completionHandler:), and remove them with one of the deletion methods.
Once you have your stuff in the index, you need to handle what happens when the user searches for and selects one of those items.
Doing this is the same codepath as continuing from a deeplink. Only, this time, the activity type will be
CSSearchableItemActionType, with the item identifier (you should have picked one that actually refers to your item) as value for the
CSSearchableItemActivityIdentifier key under the
userInfo property. See Apple’s documentation on doing this.