uialertcontroller

问题 I have an iOS app with a UIAlertController in the form of a action sheet being presented in my app when the user taps on a button. It all works great, apart from one thing, the completion blocks don't get called for some reason. Here is my code: // Setup the alert information/type. UIAlertController *action_view = [UIAlertController alertControllerWithTitle:@"Test title" message:@"test message" preferredStyle:UIAlertControllerStyleActionSheet]; // Create and add the cancel button.

问题 I have a a VC structure like this UIPageViewController -> detailViewController -> popoverviewcontroller The popoverviewcontroller is dismissed using an unwind segue, bringing us back to the detailviewcontroller Now, after the popover is done being dismissed, I would like to refresh the pages on the pagecontroller, since the action the user takes has changed the data. I would also like to display an alert notifying the user about whether they were successful. So I tried putting this code in

来源： https://stackoverflow.com/questions/40774923/problems-updating-countdown-timer-in-uialertcontroller

来源： https://stackoverflow.com/questions/40774923/problems-updating-countdown-timer-in-uialertcontroller

来源： https://stackoverflow.com/questions/31696643/uialertaction-handler-is-not-called

来源： https://stackoverflow.com/questions/31696643/uialertaction-handler-is-not-called

来源： https://stackoverflow.com/questions/30022486/how-to-add-uipickerview-in-uialertcontroller

来源： https://stackoverflow.com/questions/30022486/how-to-add-uipickerview-in-uialertcontroller

问题 I need to use UIAlertContoller , as SwiftUI's Alert does not support TextField . I must not use Custom created AlertView, due to various reason(Accessibility, DynamicType, Dark Mode support etc). Basic Idea is, SwiftUI's alert must hold TextField & entered text must be reflect back for usage. I created a SwiftUI view by Conforming to UIViewControllerRepresentable following is working code. struct AlertControl: UIViewControllerRepresentable { typealias UIViewControllerType = UIAlertController

问题 I need to use UIAlertContoller , as SwiftUI's Alert does not support TextField . I must not use Custom created AlertView, due to various reason(Accessibility, DynamicType, Dark Mode support etc). Basic Idea is, SwiftUI's alert must hold TextField & entered text must be reflect back for usage. I created a SwiftUI view by Conforming to UIViewControllerRepresentable following is working code. struct AlertControl: UIViewControllerRepresentable { typealias UIViewControllerType = UIAlertController