访问目标 swift class c 父 ZA2F2ED4F8EBC2CBB4C21A29DC4AB6DZ

Question

I have created a hybrid App which has both Objective-c and Swift classes.

I have a Main View Controller (parent) from which all other View Controllers are inherited (both written in Objective-c and Swift).

Now the issue I am facing is that I want to access a swift class inside my MainViewController but when I add #import "MyProjectName-Swift.h" in MainViewController.h , I got tons of errors.

The reason for that is because my swift view controllers are also inherited from MainViewController and when I add #import "MyProjectName-Swift.h" to MainViewController.h , all swift classes got confused.

I hope you understand my question. The scenario is a bit complicated and sorry if I haven't explained it any better.

Also, is there a way to import only a single swift class in objective-c instead of doing this #import "MyProjectName-Swift.h" ?

Any kind of help would be greatly appreciated.

Answer 1

You can only import "ProductName-Swift.h" in.m files.

To avoid cyclical references, don't import Swift into an Objective-C header file. Instead, you can forward declare a Swift class to use it in an Objective-C header. Note that you cannot subclass a Swift class in Objective-C.

There is no way to import single Swift class to ObjC file. ProductName-Swift.h is an autogenerated header that defines Objective-C interfaces for all Swift classes in your project that are either annotated with @objc or inherit from NSObject .