bridgeToObjectiveC not available on Swift Beta 5

问题

I'm writing an app that uses bridgeToObjectiveC() on a String object. Since Beta 5 this is no longer available.

I'm trying to do this:

self.myList.filter{($0 as MyClass).name.bridgeToObjectiveC().localizedCaseInsensitiveContainsString(searchText)}

Which gives me the error:

'String' does not have a member named 'bridgeToObjectiveC'

What is the equivalent code in Beta 5?

回答1:

Use as to cast to NSString for the same effect:

("string" as NSString).localizedCaseInsensitiveCompare("other string")

Or like this with optional chaining:

("string" as NSString?)?.localizedCaseInsensitiveCompare("other string")

回答2:

try

_bridgeToObjectiveC()

instead of

bridgeToObjectiveC()

as follows:

self.myList.filter{($0 as MyClass).name._bridgeToObjectiveC().localizedCaseInsensitiveContainsString(searchText)}

来源：https://stackoverflow.com/questions/25131122/bridgetoobjectivec-not-available-on-swift-beta-5