The original answer is wrong! Russ from the Apple Simulator team says: To take app store screenshots uncheck the “Optimize rendering for Window Scale” option in the Debug menu. I recommend turning this back on normally as it improves rendering performance. Double-clicking does not make the device use native resolution, that’s just an accident due … Read more
This is actually a bug in the current iOS Framework and has nothing to do with anything in your app, module cache, libraries, etc. The reason this appears to be non deterministic is that it is only there when the Accessibility Layer is active, which it isn’t on the simulator, except under very specific circumstances. … Read more
Updates in Xcode 10: Xcode 10 has increased support for code folding, including: A new code folding ribbon showing all of the multi-line foldable blocks of code in the editor A new style for folded code in the editor that allows you to edit lines with folded code Support for folding any block of code … Read more
Try again in few minutes. Maybe background indexing still running. Also, you must build your project in order to be able to use refactor->rename. Actually, it must be a bug in Xcode 9. Try 9.1 beta, refactor is not ideal, but works better there. this maybe helpful: https://forums.developer.apple.com/thread/80331 UPDATE: Close Xcode Go to ~/Library/Developer/Xcode/DerivedData and … Read more
Workaround: Restart Xcode. This has not been resolved yet as of January 2018 (Xcode 9.2).
I found out that I accidentally opened the ProjectName.xcodeproj file rather than the ProjectName.xcworkspace file. Open the xcworkspace file, project will start working again!
You can use the Codable interface with CoreData objects to encode and decode data, however it’s not as automatic as when used with plain old swift objects. Here’s how you can implement JSON Decoding directly with Core Data objects: First, you make your object implement Codable. This interface must be defined on the object, and … Read more
An Apple engineer reached out about this… Those of you with cdtool errors in Xcode 8, I suspect you installed the iOS 10.3 Simulator runtime from Xcode 9. It was discovered this week that this causes a problem with cdtool in Xcode 8.3. You can work around that by moving iOS 10.3.simruntime aside and restarting … Read more
I was hitting the same issue for a week. Since today, I change the Xcode Version back to Xcode 9.2 – and the problem was resolved. It seems like this is a bug of Xcode 9.3, I just filed an issue to Apple yesterday. No reply has been received.
If issue is on OS Mojave and you are trying, like me to run tests on older Xcode version (lower than 10.0), make sure that in your scheme, when you select Test, Debug executable is disabled You won’t be able to debug tests from this point