CODEWITHSUNDEEP
iosswiftuiviewcontroller
mcfly soft
mcfly soft

Reputation: 11651

dismiss viewcontroller from parents view

I have a parent viewController and a childviewController named MyController. I would like to show the childview for some seconds and then dismiss it. How do I dismiss the childs viewcontroller from the parents view controller ?

My code so far:

   let mainStoryboard = UIStoryboard(name: "Storyboard", bundle:  NSBundle.mainBundle())
    let vc : UIViewController = mainStoryboard.instantiateViewControllerWithIdentifier("MyController") as UIViewController
    self.presentViewController(vc, animated: true, completion: nil)

    <<wait for some seconds>>

    -->> dismissview from parents view ???

Upvotes: 3

Views: 755

Answers (1)

Ozgur Vatansever
Ozgur Vatansever

Reputation: 52093

You can use dispatch_after with some time interval to delay the execution of the block:

let seconds: NSTimeInterval = 5.0
let delay = dispatch_time(DISPATCH_TIME_NOW, Int64(seconds * Double(NSEC_PER_SEC)))
dispatch_after(delay, dispatch_get_main_queue()) {
  vc.dismissViewControllerAnimated(true, completion: nil)
}

You can define it as a function in case you might need it somewhere else in your program:

func dispatch_async_main_queue(delay: NSTimeInterval, _ block: dispatch_block_t) {
  let time = dispatch_time(DISPATCH_TIME_NOW, Int64(delay * Double(NSEC_PER_SEC)))
  dispatch_after(time, dispatch_get_main_queue(), block)
}

--

dispatch_async_main_queue(5.0) {
  vc.dismissViewControllerAnimated(true, completion: nil)
}

Upvotes: 3

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