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    Home»iOS Development»ios – How to ignoreSafeArea when presenting content in SwiftUI Sheet?
    iOS Development

    ios – How to ignoreSafeArea when presenting content in SwiftUI Sheet?

    big tee tech hubBy big tee tech hubDecember 20, 2025022 Mins Read
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    ios – How to ignoreSafeArea when presenting content in SwiftUI Sheet?
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    I present a SwiftUI View using a UIHostingController with modalPresentationStyle = .overCurrentContext. Inside this root SwiftUI view, I present a .sheet with a custom modifier to make the sheet background transparent.

    Minimal Reproducible Code:
    import SwiftUI

    class SheetViewModel: ObservableObject {
        @Published var isPresented: Bool = true
    }
    
    struct RootSheetWrapper: View {
        @StateObject var viewModel: SheetViewModel
        
        var body: some View {
            // Transparent host view acting as the anchor for the sheet
            Color.clear
                .customTransparentSheet(isPresented: $viewModel.isPresented, height: 400) {
                    SheetContent()
                }
        }
    }
    
    // Minimal version of my custom sheet extension
    extension View {
        func customTransparentSheet(
            isPresented: Binding,
            height: CGFloat,
            @ViewBuilder content: @escaping () -> Content
        ) -> some View {
            ZStack {
                self
                SomeOverlay()
            }
            self.sheet(isPresented: isPresented) {
                content()
                    .presentationDragIndicator(.hidden)
                    .applyTransparentBackground() 
                    .presentationDetents([.height(height)])
            }
        }
    }
    
    private extension View {
        @ViewBuilder
        func applyTransparentBackground() -> some View {
            if #available(iOS 16.4, *) {
                self.presentationBackground(.clear)
            } else {
                self.background(Color.clear.ignoresSafeArea())
            }
        }
    }
    

    Sheet Content:

        struct SheetContent: View {
            var body: some View {
                VStack(spacing: 0) {
                    // This image should sit behind the home indicator
                    Image(systemName: "star.fill")
                        .resizable()
                        .aspectRatio(contentMode: .fill)
                        .frame(maxWidth: .infinity)
                }
                // This makes the background transparent, but the bottom safe area 
                // still clips the Red background/Image above.
                // .ignoresSafeArea(.all) // <--- THIS DOES NOT WORK
            }
        }
    

    I present it like this:

    func presentSheet() {
            let viewModel = SheetViewModel()
            let hostView = RootSheetWrapper(viewModel: viewModel)
            
            let hostingController = UIHostingController(rootView: hostView)
            hostingController.modalPresentationStyle = .overCurrentContext
            hostingController.view.backgroundColor = .clear
            hostingController.modalTransitionStyle = .crossDissolve
            
            self.present(hostingController, animated: true)
        }
    

    What I have tried:
    Applying .ignoresSafeArea() on the VStack inside SheetContent.
    Applying .background(Color.clear, ignoresSafeAreaEdges: .bottom)

    I do see the sheet taking up safe area if I provide the height of the content and sheet to be less than the height of the image, is subtracting height of bottom safe area only way? Please help.



    Source link

    Content ignoreSafeArea iOS presenting sheet SwiftUI
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    tonirufai
    big tee tech hub
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