Objective-c Property returns 'nil' in Swift 3 -

audio.h

@property(nonatomic,readwrite) int count;

audio.m

_count = 0; count++;

viewcontroller.swift

var audioswift: audio? print(audioswift?.count)

this returns 'nil' , want have modified valued

-bdridging-header.h

#import "audio.h"

what do? thank you!

don't post answers in comments.

here complete answer:

the problem never create audio object, audioswift variable indeed nil.

change swift code this:

var audioswift = audio()  //create new audio object.  print(audioswift.count)

since code above creates audio object right away, doesn't need optional more.

note in both swift , objective-c class names should start upper-case letter, audio class should named audio instead.

WIKI