Delay in presenting a modal view controller

Question

I have a tab bar based app. There are navigation controllers in all 5 tabs with instances of custom view controller setup properly as root view controllers. This loads just

Answer 1

As per @Y.Bonafons comment, In Swift, You can try like this, (for Swift 4.x & 5.0)

DispatchQueue.main.async {

                self.showAction() //Show what you need to present
            }

Answer 2

You should display it modally from your root vc (e.g: customTabBarRootViewController). save a reference, and use the reference controller to display it.

Answer 3

If you call present(:animated:completion:) in tableView(:didSelectRowAt:), selectionStyle == .none for selected tableview cell and you’ve got this strange behavior then try to call tableView.deselectRow(at:animated:) before any operations in tableView(_:didSelectRowAt:).

Did it help?

Answer 4

Swift 4: you can use as below.

DispatchQueue.main.async {
            let popUpVc = Utilities.viewController(name: "TwoBtnPopUpViewController", onStoryboard: "Login") as? TwoBtnPopUpViewController
            self.present(popUpVc!, animated: true, completion: nil)
        }

It works for me.

Answer 5

I guess you also set the cell's selectionStyle to UITableViewCellSelectionStyleNone. I change to UITableViewCellSelectionStyleDefault and it work perfect.

Answer 6

Solution in Swift 3

In the SampleSelectorViewController(the presented view controller) use the below code

DispatchQueue.global(qos: .background).async {

// Write your code

}