Add native ScrollView backing, wrapping multi-child content in one inner LinearLayout

Author: colemancda

Sources/AndroidSwiftUI/AndroidScrollView.swift

@@ -0,0 +1,50 @@
+//
+//  AndroidScrollView.swift
+//  AndroidSwiftUI
+//
+//  Created by Alsey Coleman Miller on 7/16/26.
+//
+
+import AndroidKit
+
+extension ScrollView: AndroidPrimitive {
+
+    var renderedBody: AnyView {
+        AnyView(AndroidScrollContainer(axes: axes, content: content))
+    }
+}
+
+/// Native container for `ScrollView`. Android's `ScrollView`/`HorizontalScrollView` accept only a
+/// single direct child, so `content` (which may expand to multiple top-level views, e.g. `ScrollView { A; B }`)
+/// is wrapped in a single inner `AndroidLinearLayout`.
+struct AndroidScrollContainer<Content: View> {
+
+    let axes: Axis.Set
+
+    let content: Content
+}
+
+extension AndroidScrollContainer: ParentView {
+
+    var children: [AnyView] {
+        let orientation: AndroidLinearLayout.Orientation = axes.contains(.horizontal) ? .horizontal : .vertical
+        return [AnyView(AndroidLinearLayout(orientation: orientation, gravity: .noGravity) { content })]
+    }
+}
+
+extension AndroidScrollContainer: AndroidViewRepresentable {
+
+    typealias Coordinator = Void
+
+    func makeAndroidView(context: Self.Context) -> AndroidView.View {
+        if axes.contains(.horizontal) {
+            return AndroidWidget.HorizontalScrollView(context.androidContext)
+        } else {
+            return AndroidWidget.ScrollView(context.androidContext)
+        }
+    }
+
+    func updateAndroidView(_ view: AndroidView.View, context: Self.Context) {
+
+    }
+}