ios13

The app is being crashed when trying to hide the navigation bar for a viewcontroller only for iOS 13 users. I got the crash on Crashlytics of Fabric which titled as below, Fatal Exception: NSInternalInconsistencyException threading violation: expected the main thread The app is being crashed on this line of viewWillAppear method, self.navigationController?.isNavigationBarHidden = true To hide the navigation bar on the viewWillAppear method of UIViewController, I am using below code, override func viewWillAppear(_ animated: Bool) { self.navigationController?.isNavigationBarHidden = true super

i have Xcode 11 GM with macOS Mojave 10.14.6. I have been experiencing problems with my app builds. What i mean is that the first time i compile and app on my iPhone, its okay but then if i make changes to the code and compile again it doesn't show those changes. But when i do it in the simulator the changes do show. In order to see the changes on my phone i have to uninstall and reinstall the app. I have also been looking for known issues on apples website: https://developer.apple.com/documentation/xcode_release_notes/xcode_11_release_notes?preferredLanguage=occ but i cant seem to find a

In my iOS app I have about 60 present(_:animate:complition) calls from legacy code. iOS 13 just changed the default presentationStyle to Automatic which actually means .formSheet style. Is there a quick way to change the default back to .fullScreen on all the app? maybe like in the infoPlist or some global protocol like UIAppearance Protocol? If there's no way i need to set the presentationStyle manually in 60 places... Unfortunately there is no global variable to override to change this. This is all part of updating for the new OS's! Embrace the change, and change them all manually. This

After the releases of SwiftUI and Apple’s new betas (macOS 10.15, iOS 13, and Xcode 11), I began developing an application built on the new technologies. Development had gone smoothly, considering all the software and systems involved were in beta. However, upon trying to run the SwiftUI-based app on a real device (iPhone 8 Plus, running iOS 13 beta 2), the application refused to start, instead crashing on launch with a simple (lldb) in the Xcode debugger. The app had worked properly in the simulator, and Xcode has provided no helpful messages as to why the app will not run on a real device.

Apple recommends that we use traitCollectionDidChange and compare trait collections using hasDifferentColorAppearance to catch when dark mode is toggled, and act on it if we need to. Like this: override func traitCollectionDidChange(_ previousTraitCollection: UITraitCollection?) { super.traitCollectionDidChange(previousTraitCollection) if #available(iOS 13.0, *) { let hasUserInterfaceStyleChanged = previousTraitCollection?.hasDifferentColorAppearance(comparedTo: traitCollection) ?? false if (hasUserInterfaceStyleChanged) { //Update UI } } } I use this to update the UI, clear some caches etc

In my game engine, I have an option to enable the multithreaded rendering. In iOS 12 (and below) my app did not crash. I have not changed anything in my code, but it crashes on iOS 13. 2019-10-02 11:36:07.931 SimpleGame[293:11150] ---> (Inner Exception #0) Foundation.MonoTouchException: Objective-C exception thrown. Name: NSInternalInconsistencyException Reason: threading violation: expected the main thread Oct 2 09:57:48 GL04207-MT SimpleGame[923] <Notice>: 0 CoreFoundation 0x00000001aace1c44 97285ACB-7B21-393A-ABF6-03F1DBB5D2A2 + 1256516 Oct 2 09:57:48 GL04207-MT SimpleGame[923] <Notice>: 1

import UIKit import CoreNFC class ViewController: UIViewController, NFCTagReaderSessionDelegate { var nfcTagReaderSession: NFCTagReaderSession? func tagReaderSessionDidBecomeActive(_ session: NFCTagReaderSession) { print("Tag reader did become active") print("isReady: \(nfcTagReaderSession?.isReady)") } func tagReaderSession(_ session: NFCTagReaderSession, didInvalidateWithError error: Error) { print("\(error)") } func tagReaderSession(_ session: NFCTagReaderSession, didDetect tags: [NFCTag]) { // this part is never called! print("got a Tag!") print("\(tags)") } @IBAction func clickedNFC(_