将 Objective C 个块转换为 Swift 个闭包

Question

我只是想将这个 Objective C 块转换为 swift 但似乎有问题，我无法解决。

Objective C - 有效

HNKGooglePlacesAutocompleteQuery *searchQuery = [HNKGooglePlacesAutocompleteQuery sharedQuery];

[self.searchQuery fetchPlacesForSearchQuery:"API_KEY_HERE"                              
completion:^(NSArray *places, NSError *error) {


            }
        }];

Swift - 给出错误

var searchQuery : HNKGooglePlacesAutocompleteQuery  = HNKGooglePlacesAutocompleteQuery.sharedQuery()

searchQuery.fetchPlacesForSearchQuery("API_KEY_HERE", completion: 
{(places:NSArray, error: NSError) -> Void in

    })

错误：

 Cannot invoke 'fetchPlacesForSearchQuery' with an argument list of type '(String, completion: (NSArray, NSError) -> Void)'

Answer 1

Swift 桥接 NSArray 到 [AnyObject]，这是你应该放入方法签名中的内容。

(places:[AnyObject], error: NSError) -> Void

将 Objective C 个块转换为 Swift 个闭包

Converting Objective C blocks to Swift Closures

objective-c

ios

swift

ios8