> On Jan 11, 2016, at 3:53 PM, Rick Mann <rm...@latencyzero.com> wrote:
> 
> I have a UIButton subclass that does a lot of complex state changing, either 
> replacing its image or drawing progress into itself. The images look like 
> typical iOS 7+ icons, little blue outlines of things.
> 
> This worked well in the regular view hierarchy, but now I need to add one to 
> at UINavigationBar. I dropped it in and it made a UIBarButtonItem to contain 
> it. Everything seems to work, but it draws blue. I realized this was because 
> the image was blue.
> 
> But as I investigated, it seemed that the actual drawn color depends on the 
> UIImage's rendering mode, which was Default. I would've expected it to draw 
> it as a template while applying the tint color when the view appeared in a 
> nav bar, but it was blue. I tried changing the tint color of both the 
> UIBarButtonItem and the UIButton in IB to white, but it still came out blue.
> 
> So I changed the rendering mode in the Asset catalog for the image to 
> Template. Now it draws correctly in the nav bar, but ALSO in the regular view 
> hierarchy. That is, it's white in the nav bar (regardless of UIBarButtonItem 
> or UIButton tint color), and blue in the regular view hierarchy.
> 
> So, I'm a little confused. Any ideas what's going on?

UIBarButtonItem does not explicitly convert the image to a template for 
rendering. You can do so by calling -imageWithRenderingMoe: on your source 
image.

> 
> Thanks,
> 
> -- 
> Rick Mann
> rm...@latencyzero.com
> 
> 
> 
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--
David Duncan


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