CABTMidiCentralViewController used in Storyboard only working if using code reference









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I am having an app that uses the CABMIDICentralViewController directly within the storyboard. I dont want to use it in the code in any way.



Now i have the strange issue, that this embedded view controller (used in the storyboard as ContainerView that is embedded in a regular VC with the class attribute set to CABTMIDICentralViewController) is only working when I keep a mention in the code like this



- (IBAction)openCentralConfig

 CABTMIDICentralViewController *viewController = [CABTMIDICentralViewController new];



When i remove that line of code the containerview stays empty. When i keep it, everything is fine. I guess the compiler optimizes imports and symbols and then its not known anymore.



How can I avoid having this reference in the code.






ios midi coremidi btle







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    up vote
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    down vote

    favorite












    I am having an app that uses the CABMIDICentralViewController directly within the storyboard. I dont want to use it in the code in any way.



    Now i have the strange issue, that this embedded view controller (used in the storyboard as ContainerView that is embedded in a regular VC with the class attribute set to CABTMIDICentralViewController) is only working when I keep a mention in the code like this



    - (IBAction)openCentralConfig

     CABTMIDICentralViewController *viewController = [CABTMIDICentralViewController new];



    When i remove that line of code the containerview stays empty. When i keep it, everything is fine. I guess the compiler optimizes imports and symbols and then its not known anymore.



    How can I avoid having this reference in the code.






    ios midi coremidi btle







    share|improve this question

























      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      I am having an app that uses the CABMIDICentralViewController directly within the storyboard. I dont want to use it in the code in any way.



      Now i have the strange issue, that this embedded view controller (used in the storyboard as ContainerView that is embedded in a regular VC with the class attribute set to CABTMIDICentralViewController) is only working when I keep a mention in the code like this



      - (IBAction)openCentralConfig

       CABTMIDICentralViewController *viewController = [CABTMIDICentralViewController new];



      When i remove that line of code the containerview stays empty. When i keep it, everything is fine. I guess the compiler optimizes imports and symbols and then its not known anymore.



      How can I avoid having this reference in the code.






      ios midi coremidi btle







      share|improve this question















      I am having an app that uses the CABMIDICentralViewController directly within the storyboard. I dont want to use it in the code in any way.



      Now i have the strange issue, that this embedded view controller (used in the storyboard as ContainerView that is embedded in a regular VC with the class attribute set to CABTMIDICentralViewController) is only working when I keep a mention in the code like this



      - (IBAction)openCentralConfig

       CABTMIDICentralViewController *viewController = [CABTMIDICentralViewController new];



      When i remove that line of code the containerview stays empty. When i keep it, everything is fine. I guess the compiler optimizes imports and symbols and then its not known anymore.



      How can I avoid having this reference in the code.






      ios midi coremidi btle




      ios midi coremidi btle






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Nov 15 at 14:01

























      asked Nov 10 at 19:55









      Martin Mlostek

      1,0921229




      1,0921229



























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