Xcode 8 does not auto-complete for init methods

问题

I am having trouble getting Xcode 8 with Swift 3 to auto-complete common initialization methods, and was wondering if there is anything I could do to fix the situation.

Specifically, take something like:

let jsonString = String(data: jsonData, encoding: .utf8)

The initialization method String(data:, encoding:) will not populate.

Demo Video

回答1:

I find it useful to type the actual word .init before asking for code completion. Then later, I take it back out again.

Note that Xcode is very choosy; if you go too far and type .init( it won't work.

EDIT According to Apple, this problem is fixed in Xcode 10.

来源：https://stackoverflow.com/questions/42796212/xcode-8-does-not-auto-complete-for-init-methods