Open Radar

 
Summary:
UIImages imageWithRenderingMode: has no effect on images behavior in UIBarButtonItem unless it is called immediately after UIImage initialization and on the same line.

Example given in Swift, Identical behavior exists in Objective-C and can be reproduced with equivalent steps in either language

Steps to Reproduce:
1. Create new app
2. Create UIImage:
var image = UIImage.imageNamed("my-image")
image = image.imageWithRenderingMode(.AlwaysTemplate)
3. Create UIBarButtonItem
var barButton =  UIBarButtonItem(image: image, style: .Plain, target: nil, action: nil)
4. Add to any navigation bar with a tintColor set.
navigationItem.rightBarItem = barButton

Full Code:
var image = UIImage.imageNamed("my-image")
image = image.imageWithRenderingMode(.AlwaysTemplate)
var barButton =  UIBarButtonItem(image: image, style: .Plain, target: nil, action: nil)
navigationItem.rightBarButtonItem = barButton

Expected Results:
UIImage rendered with current value of UIToolBar.tintColor

var image = UIImage.imageNamed("my-image").imageWithRenderingMode(.AlwaysTemplate)
// should have identical behavior to 
var image = UIImage.imageNamed("my-image")
image = image.imageWithRenderingMode(.AlwaysTemplate)

Actual Results:
UIImage retains original coloring.

Inconsistent behavior based on how imageWithRenderingMode is called.

Version:
iOS 7.0.0+

Notes:
 

Configuration:
All iOS devices and simulator

Attachments: