ios - Accessing Objective-c base class's instance variables from a Swift class

Question

Having an Objective c base class:

@interface ObjcClass : NSObject {
    NSString *aVariable_;
}

And a swift sub-class:

class SwiftClass : ObjcClass {
    func init() {
        // aVariable_ can't be accessed here. An Objective-c derived
        // class has direct access to it's super's instance variables!
    }
}

How do I access ObjcClass aVariable_ from within SwiftClass?

Answer 1

Great query. We have tried to hard to get this done. The only working solution I found

get value by using self.valueForKey("aVariable_")

set value using self.setValue("New Value", forKey: "aVariable_")

Hope that helps. Possible solution without altering super class.