ios13

问题 My requirement is to open new UIWindow instead story board. Used below code to do this, UIWindow window = new UIWindow(UIScreen.MainScreen.Bounds); UIApplication.SharedApplication.KeyWindow.WindowLevel = UIWindowLevel.Normal + 0.1f; window.RootViewController = new MainNavigationController(); window.MakeKeyAndVisible(); It's working fine in iOS below 13 versions, but not in 13 and above. Have noted that iOS 13 and above were new update for multi screen, and have introduced scene delegate, so

问题 Using SwiftUI on macOS Catalina, when enabling "Support multiple windows", my iPad app shows a black screen on launch in the simulator I'm using the stock SwiftUI project, with the only change being clicking the "Support multiple windows" checkbox This is from my SceneDelegate, which I believe is the proper way to set up a window in SwiftUI var window: UIWindow? func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) { let

问题 I was trying to use the official apple documentation for Core Data. Found here. I also ran into a question which was related to my issue, right here on stack. I ran into an issue where, it kept saying that 'window' is not available in the context of AppDelegate. This is the very basic step as per the official documentation. func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool { if let rootVC = window?

问题 So here we are in WWDC 2019 video 230, and starting at about minute 14 it is claimed that NSFetchedResultsController now vends an NSDiffableDataSourceSnapshot, so we can just apply it directly to a diffable data source (UITableViewDiffableDataSource). But this is not quite what they say, or what we get. What we get, in the delegate method controller(_:didChangeContentWith:) , is an NSDiffableDataSourceReference. How do we get from this to an actual snapshot, and what should my diffable data

问题 So here we are in WWDC 2019 video 230, and starting at about minute 14 it is claimed that NSFetchedResultsController now vends an NSDiffableDataSourceSnapshot, so we can just apply it directly to a diffable data source (UITableViewDiffableDataSource). But this is not quite what they say, or what we get. What we get, in the delegate method controller(_:didChangeContentWith:) , is an NSDiffableDataSourceReference. How do we get from this to an actual snapshot, and what should my diffable data

问题 So here we are in WWDC 2019 video 230, and starting at about minute 14 it is claimed that NSFetchedResultsController now vends an NSDiffableDataSourceSnapshot, so we can just apply it directly to a diffable data source (UITableViewDiffableDataSource). But this is not quite what they say, or what we get. What we get, in the delegate method controller(_:didChangeContentWith:) , is an NSDiffableDataSourceReference. How do we get from this to an actual snapshot, and what should my diffable data

问题 I have an app that plays back videos. It's compatible with iOS 11, 12 and iOS 13. On iOS 11 and 12, video playback works properly as expected using either AVPlayerViewController or even just AVPlayerLayer . However, on iOS 13 I started getting reports that suddenly video wasn't loading (or would only load audio, or only the first frame) for quite a few users when they updated iOS. I had a really hard time replicating it, but some mentioned it occurred mostly with poor network connections, and

问题 I have an app that plays back videos. It's compatible with iOS 11, 12 and iOS 13. On iOS 11 and 12, video playback works properly as expected using either AVPlayerViewController or even just AVPlayerLayer . However, on iOS 13 I started getting reports that suddenly video wasn't loading (or would only load audio, or only the first frame) for quite a few users when they updated iOS. I had a really hard time replicating it, but some mentioned it occurred mostly with poor network connections, and

问题 I am trying to replicate the "Wizard School Signup"-example which was given in the WWDC 2019 session "Combine in Practice" https://developer.apple.com/videos/play/wwdc2019/721/ starting at 22:50 using SwiftUI (as opposed to UIKit, which was used during the session). I have created all the publishers from the example: validatedEMail, validatedPassword and validatedCredentials. While validatedEMail and validatedPassword work just fine, validatedCredentials, which consumes both publishers using

问题 I am having issue in tabBar title for iOS13 on compiling from Xcode 11.It works perfect whle compiling from Xcode 10.Please find the screenshot for the issue and below is the code for customising the tabBar. The code is self.tabBar.isTranslucent = true self.tabBar.tintColor = UIColor.white UITabBarItem.appearance().badgeColor = Constant.Colors.colorFF1744 if #available(iOS 13, *) { let appearance = UITabBarAppearance.init() appearance.stackedLayoutAppearance.normal.titleTextAttributes =