ios11 - w3toppers.com

Simultaneous accesses to 0x1c0a7f0f8, but modification requires exclusive access error on Xcode 9 beta 4

I think this ‘bug’ may be a Swift 4 ‘feature’, specifically something they call ‘Exclusive access to Memory’. Check out this WWDC video. Around the 50 minute mark, the long-haired speaker explains it. https://developer.apple.com/videos/play/wwdc2017/402/?time=233 You could try turning the thread sanitizer off in your scheme settings if you’re happy to ignore it. However, the debugger … Read more

ios 11 custom navbar goes under status bar

Your code was always wrong. You should not be setting the height of a manually added navigation bar yourself or placing it at the top of the view. You should pin the top of the navigation bar to the bottom of the status bar (e.g. the top of the Safe Area) and give it a … Read more

How can we use Assets Catalog Color Sets?

UIColor(named: “myColor”) Source: WWDC 2017 Session 237 —— What’s New in MapKit Caveat: Your project’s Deployment Target needs to be set to iOS 11.0.

Use Xcode 8 with iOS 11

As of now this is only for Debugging on iOS device, not Simulator Xcode 8 could not support unless you have the DeviceSupport folder for the iOS 11 version. You can download a Xcode 9 beta (latest Xcode 9) or get an DeviceSupport folder from other user. Simply copy it to your folder or create … Read more

UILabel wrong word wrap in iOS 11

This is a change by Apple to prevent widowed lines. From a design perspective, it is preferred to avoid having a single word on a line of text. UILabel now breaks the line in a way that the second line of text always has at least 2 words on it. See the answer below for … Read more

iOS 11 disable password autofill accessory view option?

iOS 11 & 12 & 13 – Swift 4.2 & 5 (Updated): if #available(iOS 12, *) { // iOS 12 & 13: Not the best solution, but it works. passwordTextField.textContentType = .oneTimeCode } else { // iOS 11: Disables the autofill accessory view. // For more information see the explanation below. emailTextField.textContentType = .init(rawValue: “”) … Read more

UISearchBar increases navigation bar height in iOS 11

I got black line under NavigationBar with SearchBar in iOS 11 in two cases: when i pushed another ViewControllers from ViewController with UISearchBar when i dismissed ViewController with UISearchBar with “drag right to dismiss” My solution was: adding this code to my ViewController with UISearchBar: -(void)viewWillDisappear:(BOOL)animated{ [super viewWillDisappear:animated]; [self.navigationController.view setNeedsLayout]; // force update layout [self.navigationController.view … Read more

iOS 11 navigation bar height customizing

According to Apple developers (look here, here and here), changing navigation bar height in iOS 11 is not supported. Here they suggest to do workarounds like having a view under the navigation bar (but outside of it) and then remove the nav bar border. As a result, you will have this in storyboard: look like … Read more

Location Services not working in iOS 11

It would appear that apple have added yet another privacy feature. The user is now able to override our requestAlwaysAuthorization and downgrade it to requestWhenInUseAuthorization – Which means as a developer we now have to supply both descriptions in the Info.plist I found that they have added a new key NSLocationAlwaysAndWhenInUseUsageDescription /* * Either the … Read more

Barcode on swift 4

I figured it out but Apple didn’t make it so obvious. The callback function from the delegate AVCaptureMetadataOutputObjectsDelegate has been renamed and the parameter names are different! So, replace func captureOutput(_ captureOutput: AVCaptureOutput!, didOutputMetadataObjects metadataObjects: [Any]!, from connection: AVCaptureConnection!) to func metadataOutput(_ output: AVCaptureMetadataOutput, didOutput metadataObjects: [AVMetadataObject], from connection: AVCaptureConnection) My view controller is now … Read more