iOS 8.0 Support about reusable

[AliSoftware]

Good point on forEach, didn't know it was iOS9.3+. I thought it was tied to the Swift stdlib, not to iOS version, are you sure it's not compatible with 8+?

NibOwnerLoadable is generally more useful than NibLoadable if you plan to integrate your XIB in another XIB or Storyboard. You'll make your class the File's owner of your MyCustomView.xib, then bind every needed IBOutlet from that File's Owner to the view(s) you put in your MyCustomView.xib to provide content.

Then, the most interesting part of doing that (instead of using NibLoadable and having your class be the root via of the XIB and not the File's Owner) is that if in a Storyboard you add a view and change its class to MyCustomView, it will be of the right class right away, you'll be able to access the MyCustomView IBOutlets from that Storyboard or its IBInspectable properties, and you won't need to load its content by code either (provided that you implemented init(coder:) in MyCustomView.swift to call MyCustomView.loadFromNib(owner: self))

See my example code which I recently improved to give an example of its usage. I plan to rewrite the README and rearrange paragraphs and give more examples to make all that more clear anyway.

[gokselkoksal]

I've just tried forEach on iOS 8.1 simulator and it works. How can I use a function that's available to iOS 9.3+, on iOS 8.1? That's interesting.

I now get what NibOwnerLoadable does, thanks for explanation.

[AliSoftware]

As explained, forEach is part of Swift's stdlib and as Swift runtime is dynamically linked that's logical and not surprising it's available on all iOS versions. What made you think it was only available on iOS 9?

[gokselkoksal]

Well, the doc says Availability: iOS (9.3 and later), isn't it confusing? :D

[AliSoftware]

Which docs are you referring to?

If you look at the definition of forEach itself (like, Cmd-click on it) you'll see there's no particular @availability attribute there.

If you look at the generated documentation at swiftdoc.org you'll see that this method is present as soon as Swift 2.2

I've seen Xcode's "quick help" tooltip report invalid availability versions in the past (Xcode bug); maybe that was what you were referring to as "the docs says…"?

[gokselkoksal]

Yes, quick help misled me... Thanks for explanation!