UIImageView image and border alignment is off on iPhone 6 Plus

Originator:matej
Number:rdar://18438840 Date Originated:24-Sep-2014 01:52 PM
Status:Open Resolved:
Product:iOS SDK Product Version:8.0
Classification: Reproducible:Always
 
Summary:
When running on the iPhone 6 Plus simulator (@3x mode), a UIIMageView positioned on a 0.5point coordinate and a layer border draws the assigned image outside of the border. Both the border and image appear sharp, they are just positioned on different pixels.

Steps to Reproduce:
Open the example project and run it on the iPhone 6 Plus simulator.

Expected Results:
Both the image and border would be aligned on the same pixel. 

Actual Results:
The alignment differs (the image is positioned 1px outside of the border). 

Version:
iOS 8.0, Xcode 6.0.1

Notes:
Possible workarounds are to enable clipping on the image view or to position it on pixel boundaries (not always possible). 

Configuration:
iPhone 6 Plus simulator

Comments

Sample project and screenshot

http://cl.ly/2z2H3H1E1G3r

By matej at Nov. 24, 2014, 11:40 a.m. (reply...)

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