Can't set UIViewContentMode enum

[daniel-hall]

Here's a weird but frustrating one:

I'm trying to set a UIImageView subclass's contentMode property to aspect fit (UIViewContentModeScaleAspectFit) using a stylesheet.

All of the below fail and result in the enum value of UIViewContentModeScaleToFill (0) being applied instead:

content-mode: scale-aspect-fit
content-mode: scaleAspectFit
content-mode: scaleaspectfit
content-mode: UIViewContentModeScaleAspectFit
content-mode: 1

However, enum constants with less camel-cased words work just fine, e.g.:

content-mode: top-left

So I'm guessing this is something that happens when more than two camel-cased words are appended to the enum name when naming the constant? For example:

typedef NS_ENUM(NSInteger, MyEnumType) {
MyEnumTypeOne, // works
MyEnumTypeOneTwo, // works
MyEnumTypeOneTwoThree, // will not work?
};

Or maybe it's just based on the total length of the constant name? Any suggestions / workarounds since even using the integer value doesn't seem to work?

[cloudkite]

Sorry this is mainly due to lack of documentation!

Enums cannot be automatically picked up by reflection in objc so anything which is an enum value uses a custom mapping see

https://github.com/cloudkite/Classy/blob/master/Classy/Parser/CASStyler.m#L450

In this case looks like I abbreviated a few of them, Sorry for the confusion!

So the magic word you are looking for is aspectFit

[daniel-hall]

Ah yes - that was all I needed! Thanks for the tip :)

I'm really appreciating the flexibility of Classy so far. I wasn't able to get Pixate working as cleanly with some of the functionality I needed. So thumbs up and thanks for this great framework!

[dnedrow]

@daniel-hall , can this issue be closed?

[dnedrow]

Added answer to wiki how-to.