swiftui

Working on a sample app. The goal is to have a list pulled up from CoreData in a MasterView, and then click on one to go to a DetailView where you can edit the information and save. When you edit the name in the DetailView, it not only updates the DetailView to reflect the change, but it also reflects the change on the MasterView as well. I've tried numerous ways to accomplish this, but so far have not come up with an answer.// Code generation is turned OFF in the xcdatamodeld file public class EntityName: NSManagedObject, Identifiable { @NSManaged public var name: String @NSManaged public var active: Bool } extension EntityName { static func allEntityNameFetchRequest() -> NSFetchRequest<EntityName> { let request: NSFetchRequest<EntityName> = EntityName.fetchRequest() as! NSFetchRequest<EntityName> request.sortDescriptors = [NSSortDescriptor(key: name, ascending: true)] return request } } struct MasterView: View { @Environment(.managedObjectContext) var managedObjectContext @FetchRequest(

I'm running XCode 11.0 Beta 5 on Catalina 10.15. I downloaded the Drawing Paths and Shapes module of the SwiftUI tutorials and Badge.swift and related files throw this error:Landmarks.app crashed: Error Domain=render service Code=12 Rendering service was interrupted UserInfo={NSLocalizedDescription=Rendering service was interrupted}I cleaned the project folder, restarted XCode - still won't preview.Am I missing something?

I have a SwiftUI view for math expressions. It shows divisions as VStacks with a divider in the middle and additions as HStacks with a + sign in the middle. See the images in this GitHub gist: gist.github.com/Dev1an/668978dc4b84b8c6213ba10905d57c1d#proper-alignmentBut I am having trouble aligning the Additions to the Divisions. I can create multiple custom alignment guides beforehand for each division and then everything works fine. But the problem is that I am generating these mathematical expressions dynamically and cannot create new guides (a Type conforming to AlignmentID.Type) for every division in the expression. Is there a way to reuse alignment guides in nested views so that I can reuse the same custom VerticalAlignment multiple times? When I try to reuse the same guide, the HStack's just align to the center (as shown in the gist).Here is an example hierarchy:Addition(alignment: .custom) Division Addition(alignment: .custom) Number + Division Number / (guide: .custom) Number / (guide: .custom

I have multiple CustomTextFields and when they are actively being edited I want to know which one is currently active. I have set tags but you can not reference the tag inside the onEditingChanged closure. struct CustomTextField : View { var placeHolderString : String @Binding var contentString. : String var body : some View { TextField(placeHolderString, text: $contentString, onEditingChanged: { (editing) in //Determin which TextField is currently active here }, onCommit: { }).textFieldStyle(RoundedBorderTextFieldStyle()) .multilineTextAlignment(.center) } }

Hello all,I am trying to follow the guide - SwiftUI Essentials: Building Lists and Navigation. However, every time I try to run the preview, I am flagged with Use of undeclared type 'LandmarkRow_previews'. This is after the very first steps of creating a new SwiftUI file and activating the debugger. None of the elements are color coded(i.e. HStack, Text) and only appear in plain white text as if the editor isn't interpreting the code. The issue is only happening in this starter project file provided by apple. Is there any workaround that comes to mind? Thanks, Matt