App protocol in iOS - how do I pass EnvironmentObject

[davidakoontz]

I'm a bit confused with how to pass an AppState object into the SKIP application. Looking at the example Scrumdinger / Scrumskipper I don't see it passing in any Env Objs?
In the code for the App - there are #if !SKIP #endif - but no ELSE block... what happens on Android?

How does the Android App get launched and passed Env Objs?

I do NOT see the App protocol defined in that list of classes/objects: Components
https://skip.tools/docs/components/ so I'm not sure how the iOS gets ported to Android at the very top level.

Maybe I'm making this too hard... Got any better examples?

Ref: ScrumSkipper App
https://skip.tools/blog/scrumskipper/

Where the AppMain object declared in Darwin/Sources/ScrumskipperAppMain.swift
`import SwiftUI
import Scrumskipper

/// The entry point to the app simply loads the App implementation from SPM module.
@main struct AppMain: App, ScrumskipperApp {
}`

Has the ScrumskipperApp implementation Sources/Scrumskipper/ScrumskipperApp.swift

`import Foundation
import OSLog
import SwiftUI

let logger: Logger = Logger(subsystem: "com.xyz.Scrumskipper", category: "Scrumskipper")

/// The Android SDK number we are running against, or nil if not running on Android
let androidSDK = ProcessInfo.processInfo.environment["android.os.Build.VERSION.SDK_INT"].flatMap({ Int($0) })

/// The shared top-level view for the app, loaded from the platform-specific App delegates below.
///
/// The default implementation merely loads the ContentView for the app and logs a message.
public struct RootView : View {
public init() {
}

public var body: some View {
    ContentView()
        .task {
            logger.log("Welcome to Skip on \(androidSDK != nil ? "Android" : "Darwin")!")
            logger.warning("Skip app logs are viewable in the Xcode console for iOS; Android logs can be viewed in Studio or using adb logcat")
        }
}

}

#if !SKIP
public protocol ScrumskipperApp : App {
}

/// The entry point to the Scrumskipper app.
/// The concrete implementation is in the ScrumskipperApp module.
public extension ScrumskipperApp {
var body: some Scene {
WindowGroup {
RootView()
}
}
}
#endif`

[davidakoontz]

OK... I'm back trying to resolve my "LAST" issue... passing in AppState to the App. Looking at the TravelBookings App - it seems to uses similar TravelBookingsApp.swift as the ScrumskipperApp.swift. Both are using an App wrapped by the #if !SKIP without an #else for the Android platform... so I get lost tracing this down. How does an Android App launch?

My original App passes in the AppState via WindowGroup.environmentObject(appState) and the state get's handed to all children...

`
@main
struct PainlessPasswordApp: App {
@StateObject private var appState = AppState()

var body: some Scene {
    WindowGroup {
        ContentView()
    }
    .environmentObject(appState)    // will be passed to children
}

}`

My current issue... how do I do the similar thing with Skip?

[davidakoontz]

hey - why does the <> code mark-down not work for me... must be doing it WRONG!

[davidakoontz]

I'm incompetent at reading Apple Docs... and learn best from examples, now.

https://skip.tools/docs/components/observable/

I don't know the latest issues with Apple Observable and how it's morphed over the releases... it's looking like Skip has support for iOS 17 Observable... I'm I right / wrong or just off? That Skip web page doesn't tell ME much. What does it all mean?

[davidakoontz]

I finally went back to the beginning - undoing some of my BONEHEAD changes... And looking at the example TravelBookings App used the methods there to declare an ObservedObject AppState. And injecting it with the View.environmentObject(appState) call.
Which got my App running! Yeah! on both platforms!!!