UISearchBarDelegate should have a delegate method that's called when marked text changes

Originator:an00na
Number:rdar://33236593 Date Originated:July 11 2017, 9:21 AM
Status:Open Resolved:
Product:iOS + SDK Product Version:11.0 beta 3
Classification:Suggestion Reproducible:
 
Area:
UIKit

Summary:
UISearchBarDelegate should have a delegate method(or reuse searchBar(_:textDidChange:)) that's called when marked text changes, just like UITextViewDelegate.textViewDidChange(:).

Otherwise it's very clumsy—have to resort to something like repeating polling— to achieve what Session 242 WWDC 2017 advocates(https://developer.apple.com/videos/play/wwdc2017-242/?time=1628): "when user type in Chinese for example, before users select the candidate, Spotlight engine already start to show you all the results."

Steps to Reproduce:
1. Launch sample app.
2. Activate search bar.
3. Switch to Chinese Pinyin keyboard.
4. Start typing.
5. Read console logs.
6. Activate text view and repeat step 3~5 to see the expected behavior.

Code: https://mega.nz/#!VSx3WCRS!15upHSFkyt0EQxSu7eFHUWndFSabRwSxcnF3sUd0MtI

Comments


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