***UPDATED***See poya's correct answer below-- the problem was that the button was calling a new instance of UserData instead of the environment object that I intended to reference. Once the button referenced the correct object, it worked!Using XCode 11.4, Swift 5.0After exploring dozens of different ways to try and solve this problem and spending almost a week trying to solve it, I'd like to seek insight as to what could be going wrong.To learn SwiftUI I am building a single-view app that uses CoreMotion gyroscope to sense when the iPhone is held in a specific 3D orientation; when iPhone is held in this orientation, I add +1 to a score count that is saved to user defaults. The score count & user default values are confirmed to print the correct integer (in the debug log) every time the iPhone is held in the right orientation, but the Text view on the main screen will not auto-update itself -- I have only been able to get the Text view manually updated when I set *score count = user default* as a Button action.My understanding is that using @EnvironmentObject is the best way to auto-update UI views when a @Published variable changes.Please see my current attempt below:HomeView(single page view of app)import Foundation import SwiftUI import Combine struct HomeView: View { //sets up the userData class to share data with the HomeView @EnvironmentObject var userData: UserData var body: some View { //***score counter, calling the @Published variable scoreCount from userData VStack { Text("\(userData.scoreCount)") Text("Score Count") //***This button should start gyro, and every time iPhone is in specific orientation, //the score count should increase by +1 and the new score should auto-update in //the above text Button(action:{ UserData().manageMotionCapture() }){ Text("START MOTION CAPTURE") } //My test button that updates the above userData.scoreCount if it is pressed Button(action:{ self.userData.correctionCount = defaults.integer(forKey: "CorrCount") print("\(self.userData.correctionCount)") }){ Text("SHOW SCORE") } } } } struct HomeView_Previews: PreviewProvider { static var previews: some View { HomeView().environmentObject(UserData()) } }UserData ObservableObject class(contains published var scoreCount and the CoreMotion gyro functions that calculate when to add +1 to scoreCount)import Foundation import SwiftUI import CoreMotion import Combine // sets up the user defaults for app storage of the score count let defaults = UserDefaults.standard //Sets up the gyroscope for use in the functions below let motion = CMMotionManager() var timer = Timer() //Contains the score Count and the functions to run the user's gyroscope when called final class UserData: ObservableObject { @Published var scoreCount = defaults.integer(forKey: "scoreCount") //When button is pressed on HomeView, this function is called and //stops all previous gyros/timers and starts a new one. Gyro effectively restarts with every button press func manageMotionCapture() { /// sets up motion capture logic based on Apple's template // /// logic adds +1 based on orientation /// }(Puts the EnvironmentObject into the view so it is accessible to app)import Foundation import UIKit import SwiftUI class SceneDelegate: UIResponder, UIWindowSceneDelegate { var window: UIWindow? func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) { // Use a UIHostingController as window root view controller if let windowScene = scene as? UIWindowScene { let window = UIWindow(windowScene: windowScene) //Sets the HomeView as the root view window.rootViewController = UIHostingController(rootView: HomeView().environmentObject(UserData())) self.window = window window.makeKeyAndVisible() } }As mentioned before, the scoreCount variable and user defaults are both being incremented by +1, correctly shown by the print statements in the log when gyroscope is actively running. However, the scoreCount changes are not automatically propagated to theHomeView's Text("\(userData.scoreCount)") It seems as though something simple is missing but after many days I haven't been able to sort it out?Thank you very much for any insight on how to fix this!!

Using XCode 11.4.1MacOS 10.15.4SwiftUII would like to implement dark mode in my test application, but the LaunchScreen is not changing when I use a named color asset.The rest of the app and all its pages update to the correct custom green color in light appearance, and black in the dark appearance,however the LaunchScreen stays the custom green and will not change to black despite changing the iPhone device settings to dark mode when I am testing the app.The LaunchScreen is set to use the background color called "appBackground" which is the custom color asset group I made in the assets folder, and it contains the colors for light mode, dark mode, and any appearance.Thank you for any insight!***EDIT***I found that I needed to click the checkmark for "High Contrast" in the assets folder when creating my custom light/dark background color asset- this fixed my specific problem and allowed the light appearance launchsreen for my app to appear the custom green, and the dark appearance to appear as the black.