Open Radar

 
Summary:
When UIAppearance is implemented, Interface Builder configuration isn't respected.

This may well be a documentation issue, considering UIAppearance is a proxy and is implemented in a runtime fashion, whereas Interface Builder is implemented in a compile-time fashion.

However, I'd argue that a change needs to occur, to move towards one of two outcomes:
-Interface Builder's internals are modified, such their generated config is respected when UIAppearance configuration is implemented
-This behavior is more clearly documented around official documentation and, perhaps, even the Xcode interface

Steps to Reproduce:
1. In application:didFinishLaunchingWithOptions: implement the following set of directives:

UIButton.appearance().setTitleColor(UIColor.blueColor(), forState: .Normal)
UIButton.appearance().setTitleColor(UIColor.blueColor(), forState: .Highlighted)
UIButton.appearance().setTitleColor(UIColor.blueColor(), forState: .Selected)
UIButton.appearance().setTitleColor(UIColor.blueColor(), forState: .Disabled)

2. In Interface Builder, configure the root view controller to display a UIButton in its view

3. Set that UIButton's titleColor for every state to Red Color, in Interface Builder

Expected Results:
The UIButton's title color is red

Actual Results:
The UIButton's title color is blue

Version:
iOS 9.2

Notes:


Configuration:
iOS Simulator

Attachments: