Add KMP regions

Author: mlykotom

kmp/iosApp/iosApp/ContentView.swift

@@ -1,5 +1,5 @@
 import SwiftUI
-import Shared
+import KmpKit
 
 struct ContentView: View {
     @State private var showContent = false
@@ -16,7 +16,7 @@ struct ContentView: View {
                     Image(systemName: "swift")
                         .font(.system(size: 200))
                         .foregroundColor(.accentColor)
-                    Text("SwiftUI: \(Greeting().greet())")
+                    Text("SwiftUI")
                 }
                 .transition(.move(edge: .top).combined(with: .opacity))
             }

kmp/iosApp/iosApp/IosViewModelStoreOwner.swift

@@ -0,0 +1,33 @@
+import Foundation
+import KmpKit
+
+// [START android_kmp_viewmodel_ios_viewmodel_storeowner]
+class IosViewModelStoreOwner: ObservableObject, ViewModelStoreOwner {
+
+    let viewModelStore = ViewModelStore()
+
+    /// This function allows retrieving the androidx ViewModel from the store.
+    /// It uses the utilify function to pass the generic type T to shared code
+    func viewModel<T: ViewModel>(
+        key: String? = nil,
+        factory: ViewModelProviderFactory,
+        extras: CreationExtras? = nil
+    ) -> T {
+        do {
+            return try viewModelStore.resolveViewModel(
+                modelClass: T.self,
+                factory: factory,
+                key: key,
+                extras: extras
+            ) as! T
+        } catch {
+            fatalError("Failed to create ViewModel of type \(T.self)")
+        }
+    }
+
+    /// This is called when this class is used as a `@StateObject`
+    deinit {
+        viewModelStore.clear()
+    }
+}
+// [END android_kmp_viewmodel_ios_viewmodel_storeowner]

kmp/shared/src/iosMain/kotlin/com/example/kmp/snippets/ViewModelResolver.ios.kt

@@ -1,4 +1,4 @@
-package com.example.kmp.snipets
+package com.example.kmp.snippets
 
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.ViewModelProvider
@@ -9,9 +9,10 @@ import kotlinx.cinterop.ObjCClass
 import kotlinx.cinterop.getOriginalKotlinClass
 import kotlin.reflect.KClass
 
+// [START android_kmp_viewmodel_resolve_viewmodel]
 /**
  *   This function allows retrieving any ViewModel from Swift Code with generics. We only get
- *   [kotlinx.cinterop.ObjCClass] type for the [modelClass], because the interop between Kotlin and Swift code
+ *   [ObjCClass] type for the [modelClass], because the interop between Kotlin and Swift code
  *   doesn't preserve the generic class, but we can retrieve the original KClass in Kotlin.
  */
 @BetaInteropApi
@@ -28,4 +29,5 @@ fun ViewModelStore.resolveViewModel(
 
     val provider = ViewModelProvider.Companion.create(this, factory, extras ?: CreationExtras.Empty)
     return key?.let { provider[key, vmClass] } ?: provider[vmClass]
-}
+}
+// [END android_kmp_viewmodel_resolve_viewmodel]