I want to translate this code from Swift to Objective C:
typealias Completion = ([Media]?) -> Void
I have look over Stack Overflow posts, but I don't see the answer for this.
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2 Answers
typedef void (^CompletionBlock) ( NSArray<Medial*>* _Nullable array);
5 Comments
Twitter khuong291
It says: unknown type name 'nullable'.
typedef void (^Completion) (NSArray<Media*>* array); is good.
Volodymyr
Updated answer. Now should work fine. It defines that your array may be nil. In Swift code that it's optional value. It must be there to fully be as your swift code. And yes, it will work without it as well, only problem may appear when you will be translating this Objective-C code into Swift code. Than it will be translated as non optional value (if without _Nullable)
Twitter khuong291
Then in
func load(mediaType: MediaType, completion: Completion) -> - (void)load:(MediaType *)mediaType completion:(Completion)completion;Twitter khuong291
It says: Pointer is missing a nullability type specifier (_Nonnull, _Nullable, or _Null_unspecified)
Volodymyr
It wan't now for you to add such things to your code. I suppose it want to determine other objects nullabilities. Try transforming into - (void)load:(nonnull MediaType *)mediaType completion:(nonnull Completion)completion;
typedef void (^CompletionBlock) (NSArray* array);
