title: Can you have more than one runloop per thread on iOS?
body: <p>Are there any possible way to create two or more run loop in one thread? Or one thread can have only one run loop?</p>
  
  <p>My partner tells me, one thread is possible to have two or more run loop inside. And I doubt it. I had googled but found nothing. So, is it possible to have two or more run loop in one thread ?</p>