https://stackoverflow.com/questions/72163124/update-a-uilabel-text-value-after-x-seconds-in-swift-uikit

CancelTask.swift

var task: Task<Void, Error>?

func updateLabelAfterAPICall(initialValue: String) {
    task?.cancel() // just in case
    
    task = Task { [weak self] in
        try await Task.sleep(nanoseconds: 5_500_000_000)
        self?.label.text = "New Value after 5.5 seconds passed"
    }
}

override func viewDidDisappear(_ animated: Bool) {
    super.viewDidDisappear(animated)
    task?.cancel()
}

Note, I transitioned this back to viewDidDisappear, rather than viewWillDisappear because the former is called when the view disappears, but the latter will happen when the view might disappear. (This is a distinction that is only relevant in cancelable, interactive transitions, but it’s just good practice to limit viewWillDisappear to only offset those actions that were initiated in viewWillAppear.)

But the salient points in the above, as in matt’s original answer, are that we

• remove the ? from the try?;
• use [weak self] capture list in the Task;
• keep reference to the Task; and
• cancel the task when the view disappears.