swiftui

hi,EDIT: OOPS - missed that this is a SwiftUI question (and i'm not there yet), so not sure if the following really answers the question ⚠you might want to go back to the topic Understanding UITextView Input of May 10 and using the shouldChangeText(in:replacementText:) method (part of UITextInput protocol that UITextField conforms to).in short, shouldChangeText(in:replacementText:) gives you a more general way to see what's coming into a UITextField before it gets there (which could be from a keystroke, but also from a paste); it may do what you need, but i don't know that there's a direct keystroke reader (assume you're talking about iOS).hope that helps,DMG

In SwiftUI, views are created inside the definition of a structure and then initialized when an instance is created from that definition, therefore, you can't execute code anywhere you want, you can only do it from inside the structure's methods or closures. For instance, if you look at your code, you tried to call the print() function in the place were the properties of the structure and its methods are defined. This is not allowed. If you want to execute code when the instance of that structure is created, you have to define the structure's initializer:import SwiftUI struct TestView : View { let myvar = 150 init() { print(myVar: (myvar)) } var body: some View { Text(Hello World!) } }The body property is a computed property which value is defined by a closure, so you can use print() inside that closure. The problem is that closures know what value to return when they only have one statement, but if there are more than one statement, you have to specify what should be returned with the retur

Without navigation, the closest one can do is generate new views for every clickimport SwiftUI struct ContentView : View { @State var clickedContent: RandomListStruct? @State var clickedUseCase: Int? var var_list : [RandomListStruct] let zero = use a default view as in WWDC video var body: some View { HStack (alignment: .top) { VStack (alignment: .leading){ List (selection: $clickedContent) { Text (Master Record).color(.orange) Divider() ForEach(var_list.identified(by: .self)) { rls in HStack { Text((rls.name)) Spacer() Text((rls.address)) } } } }.frame(maxWidth: 250, maxHeight: .infinity) VStack { List { Text (Details ).color(.orange) Divider() if (clickedContent?.name ?? zero) == zero { Text(Please select a Row).color(.red) } else { VStack(alignment: .leading) { Text(Name : (clickedContent!.name)).color(.green) Text(Address : (clickedContent!.address)).color(.green) } } } }.frame(maxWidth: 500, maxHeight: .infinity) } } } struct RandomListStruct: Hashable, Codable, Identifiable { var id : Int var n

I have the same problem!In Xcode 11 Beta 1 sometimes I can open my app but not everytime !I might mistake choosing SwiftUI when launching my app which using UIKit.In the release note it said:Xcode 11 beta doesn’t support working with SwiftUI in a project configured to use UIKit for Mac. (51201699)Since then no luck !

What makes this strange if the map is its own view the pin is correctly shown. As soon as it comes from a navigation view then the pin is not shown...wondering if it is a bug or a 'feature'what would help would be a proper swiftui implementation of mapkit lol, but can someone help in the meantime

This might help with the navigationBarTitle modifer question....https://medium.com/@michaellong/swiftui-deep-inside-navigationview-4d25d57a236c?source=friends_link&sk=573fb99e9de4a55578e5b0f288cd82b5

There are some examples of using Core Data with SwiftUI showing up on github and the web:https://github.com/StephenMcMillan/Dub-Dub-Dohttps://github.com/italoboss/EmotionalDiaryhttps://medium.com/@rosscoops/swiftui-nsfetchedresultscontroller-f9f27718e3d4They seem to work with simple models (one entity), haven't seen any code based on more complex models (multi-entity with relationships) yet, nor have I been able to get a more complex model to work.