I'm encountering an problem where I am having a long delay when trying to present a ViewController
. I am trying to display an upgrade alert when a user clicks on a UITableViewCell
which requires premium access. In the ViewController
being presented, I put debug code:
override func viewDidLoad() {
super.viewDidLoad()
println("\(NSDate()) viewDidLoad")
// Set Navigation Title font and color
self.navigationController?.navigationBar.titleTextAttributes = [NSFontAttributeName: UIFont(name: "UbuntuCondensed-Regular", size: 22)!,
NSForegroundColorAttributeName: UIColor.whiteColor()]
println("\(NSDate()) end of viewDidLoad")
}
override func viewWillAppear(animated: Bool) {
println("\(NSDate()) before super.viewWillAppear(animated)")
super.viewWillAppear(animated)
println("\(NSDate()) after super.viewWillAppear(animated)")
}
override func viewDidAppear(animated: Bool) {
println("\(NSDate()) before super.viewDidAppear(animated)")
super.viewDidAppear(animated)
println("\(NSDate()) after super.viewDidAppear(animated)")
}
The println
statement resulted in:
2015-06-23 16:36:54 +0000 viewDidLoad
2015-06-23 16:36:54 +0000 end of viewDidLoad
2015-06-23 16:36:57 +0000 before super.viewWillAppear(animated)
2015-06-23 16:36:57 +0000 after super.viewWillAppear(animated)
2015-06-23 16:36:58 +0000 before super.viewDidAppear(animated)
2015-06-23 16:36:58 +0000 after super.viewDidAppear(animated)
As you can see there is a 3 second delay between the end of viewDidLoad
and the start of viewWillAppear
. I can't figure out why this is occurring. I am creating the views programmatically within the ViewController
, so the storyboard is not being used here.
This is the code I have to present my ViewController
:
// Create the upgrade view contorller
let upgradeVC = UpgradeViewController()
// Set the presentation context
self.providesPresentationContextTransitionStyle = true
self.definesPresentationContext = true
// Set the upgrade controller to be modal over current context
upgradeVC.modalPresentationStyle = UIModalPresentationStyle.OverCurrentContext
// Show the view controller
self.navigationController?.presentViewController(upgradeVC, animated: true, completion: nil)