how to display alert windows one by one SWift

Question

I am new to Swift, and I have questions regarding how to present Alert Window one by one after the user clicks the button(dismiss). So I could have the second the window pops out right after users click the button to dismiss the alert? So far, I tried I can't display them together by trying:

  self.createAlert(title: " 1", message: "1")
  self.createAlert(title: " 2",message: "2")

And I would get error message:

[Presentation] Attempt to present <UIAlertController: 0x7f9e4380b800> on <UITabBarController: 0x7f9e43059000> (from <IFTTT.HomePageViewController: 0x7f9e41c17be0>) which is already presenting <UIAlertController: 0x7f9e4280b000>.

Can someone introduce me to some techniques to solve this? Like a boolean function to know if the last window is closed or something more efficient. Thank you!!

Does this answer your question? [How would I create a UIAlertView in Swift?](https://stackoverflow.com/questions/24022479/how-would-i-create-a-uialertview-in-swift) — Harshil Patel, Nov 12 '20 at 23:55

score 1 · Accepted Answer · answered Nov 12 '20 at 20:43

When the user taps a button in an alert to dismiss it, you get called in that button's action handler:

alert.addAction(UIAlertAction(title: "Cancel", style: .cancel, handler: {
    // what goes here?
}))

The code in "what goes here?" is called after the alert is dismissed, so that is your chance to present another alert immediately.

how to display alert windows one by one SWift

1 Answers1