UINavigationController topViewController does not emit KVO notifications

Originator:erikprice
Number:rdar://11010559 Date Originated:2012-03-08
Status:Duplicate/10545870 Resolved:no
Product:iOS SDK Product Version:all
Classification:other bug Reproducible:yes
 
Summary: The UINavigationController's topViewController property does not emit KVO notifications.

Steps to Reproduce: Listen for KVO notifications on the topViewController property of a UINavigationController.

Expected Results: When the topViewController changes, expect KVO notifications.

Actual Results: No KVO notifications.

Regression:

Notes:

Comments

Response from devbugs@apple.com:

"This is a follow up to Bug ID# 11010559. After further investigation it has been determined that this is a known issue, which is currently being investigated by engineering. This issue has been filed in our bug database under the original Bug ID# 10545870. The original bug number being used to track this duplicate issue can be found in the Related Problem section of your bug report's Problem Detail view."


Please note: Reports posted here will not necessarily be seen by Apple. All problems should be submitted at bugreport.apple.com before they are posted here. Please only post information for Radars that you have filed yourself, and please do not include Apple confidential information in your posts. Thank you!