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node_modules/expo-glass-effect/ios/GlassContainer.swift

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+// Copyright 2022-present 650 Industries. All rights reserved.
+
+import ExpoModulesCore
+
+public final class GlassContainer: ExpoView {
+  private var containerEffect: Any?
+  private var containerEffectView = UIVisualEffectView()
+
+  private var containerSpacing: CGFloat?
+
+  public required init(appContext: AppContext? = nil) {
+    super.init(appContext: appContext)
+
+    containerEffectView.autoresizingMask = [.flexibleWidth, .flexibleHeight]
+
+    addSubview(containerEffectView)
+  }
+
+  // UIGlassEffect initialiser is failing for iOS 26 beta versions for some reason, so we need to check if it's available at runtime
+  // https://github.com/expo/expo/issues/40911
+  private func isGlassContainerEffectAvailable() -> Bool {
+    #if compiler(>=6.2)
+    if #available(iOS 26.0, tvOS 26.0, macOS 26.0, *) {
+      return NSClassFromString("UIGlassContainerEffect") != nil
+    }
+    #endif
+    return false
+  }
+
+  func setSpacing(_ spacing: CGFloat?) {
+    if containerSpacing != spacing {
+      containerSpacing = spacing
+      guard isGlassContainerEffectAvailable() else {
+        return
+      }
+      if #available(iOS 26.0, tvOS 26.0, macOS 26.0, *) {
+        #if compiler(>=6.2) // Xcode 26
+        let effect = UIGlassContainerEffect()
+        if let spacing = spacing {
+          effect.spacing = spacing
+        }
+        containerEffectView.effect = effect
+        containerEffect = effect
+        #endif
+      }
+    }
+  }
+
+  public override func mountChildComponentView(_ childComponentView: UIView, index: Int) {
+    containerEffectView.contentView.insertSubview(childComponentView, at: index)
+  }
+
+  public override func unmountChildComponentView(_ childComponentView: UIView, index: Int) {
+    childComponentView.removeFromSuperview()
+  }
+}