UILocalizedIndexedCollation returns wrong index for alphabets when device is set to Arabic

Originator:singjie
Number:rdar://23141976 Date Originated:16-Oct-2015
Status:Open Resolved:
Product:iOS Product Version:
Classification: Reproducible:
 
Summary:
UILocalizedIndexedCollation returns wrong index when device is in Arabic.

Method name: `sectionForObject:collationStringSelector:`

Arabic words/characters map correctly, but is wrong for alphabets.

e.g. A phrase beginning with "A" is mapped to "B" index.
"Axxx" -> "B"
"Bxxx" -> "C"

Steps to Reproduce:
1. Set device's language to Arabic.
2. Build and Launch Demo App
3. Crashes at Assertion

Expected Results:
It should return the correct index

Actual Results:
"Axxx" -> "B"
"Bxxx" -> "C"

Version:
iOS 9.0.2

Notes:


Configuration:
iPhone 6

Attachments:
'collationbug.zip' was successfully uploaded.

Comments


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!