Stringified selectors are deprecated 관련

HACKING WITH SWIFT

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What's new in Swift?

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Stringified selectors are deprecated | Changes in Swift 2.2

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Stringified selectors are deprecated

Available from Swift 2.2

One unwelcome quirk of Swift before 2.2 was that selectors could be written as strings, like this:

navigationItem.rightBarButtonItem = UIBarButtonItem(title: "Tap!", style: .Plain, target: self, action: "buttonTaped")

If you look closely, I wrote "buttonTaped" rather than "buttonTapped", but Xcode wasn't able to notify me of my mistake if either of those methods didn't exist.

This has been resolved as of Swift 2.2: using strings for selectors has been deprecated, and you should now write #selector(buttonTapped) in that code above. If the buttonTapped() method doesn't exist, you'll get a compile error – another whole class of bugs eliminated at compile time!

Other changes in Swift 2.2…

++ and -- are deprecated | Changes in Swift 2.2

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++ and -- are deprecated

Traditional C-style for loops are deprecated | Changes in Swift 2.2

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Traditional C-style for loops are deprecated

Comparing tuples | Changes in Swift 2.2

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Comparing tuples

Tuple splat syntax is deprecated | Changes in Swift 2.2

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Tuple splat syntax is deprecated

More keywords can be used as argument labels | Changes in Swift 2.2

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More keywords can be used as argument labels

Variable parameters have been deprecated | Changes in Swift 2.2

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Variable parameters have been deprecated

Renamed debug identifiers: line, function, file | Changes in Swift 2.2

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Renamed debug identifiers: line, function, file

Compile-time Swift version checking | Changes in Swift 2.2

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Compile-time Swift version checking

Download Swift 2.2 playground