Add blur on container

Author: pboulch

BottomSheetDemo/Sources/User Interface/Screens/Root/RootViewController.swift

@@ -53,7 +53,11 @@ final class RootViewController: UIViewController {
         let viewController = ResizeViewController(initialHeight: 300)
         presentBottomSheetInsideNavigationController(
             viewController: viewController,
-            configuration: .default
+            configuration: BottomSheetConfiguration(
+                cornerRadius: 10,
+                pullBarConfiguration: .visible(.init(height: 50)),
+                shadowConfiguration: .init(backgroundColor: UIColor.black.withAlphaComponent(0.6), blur: .light)
+            )
         )
     }
 }

Sources/BottomSheet/Core/BottomSheetConfiguration.swift

@@ -26,9 +26,11 @@ public struct BottomSheetConfiguration {
 
     public struct ShadowConfiguration {
         public let backgroundColor: UIColor
+        public let blur: UIBlurEffect.Style?
 
-        public init(backgroundColor: UIColor) {
+        public init(backgroundColor: UIColor, blur: UIBlurEffect.Style? = nil) {
             self.backgroundColor = backgroundColor
+            self.blur = blur
         }
 
         public static let `default` = ShadowConfiguration(backgroundColor: UIColor.black.withAlphaComponent(0.6))

Sources/BottomSheet/Core/Presentation/BottomSheetPresentationController.swift

@@ -284,7 +284,11 @@ public final class BottomSheetPresentationController: UIPresentationController {
     }
 
     private func addShadow(containerView: UIView) {
-        let shadingView = UIView()
+        var shadingView = UIView()
+        if let blur = configuration.shadowConfiguration.blur {
+            shadingView = UIVisualEffectView.init(effect: UIBlurEffect.init(style: blur))
+        }
+        
         shadingView.backgroundColor = configuration.shadowConfiguration.backgroundColor
         containerView.addSubview(shadingView)
         shadingView.frame = containerView.bounds