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Extract HUD into another file for easier reuse
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,136 @@ | ||
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| import SwiftUI | ||
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| #if canImport(UIKit.UIViewController) | ||
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| import UIKit | ||
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| enum SwiftUIHUD { | ||
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| @MainActor | ||
| static func presentHUDViewController(_ stateWrapper: HUDView.StateWrapper?, configuration: HUDView.Configuration = .init()) async -> UIViewController? { | ||
| guard let windowScene = UIApplication.shared.connectedScenes.first(where: { $0.activationState == .foregroundActive }) as? UIWindowScene, | ||
| let rootVC = windowScene.keyWindow?.visibleViewController else { return nil } | ||
| let ___hudVC = UIHostingController( | ||
| rootView: HUDView( | ||
| stateWrapper: stateWrapper ?? .init(isSuccess: false), | ||
| configuration: configuration | ||
| ) | ||
| .environment(\.colorScheme, rootVC.traitCollection.userInterfaceStyle == .light ? .dark : .light) | ||
| ) | ||
| ___hudVC.modalPresentationStyle = .overCurrentContext | ||
| ___hudVC.modalTransitionStyle = .crossDissolve | ||
| ___hudVC.view.backgroundColor = .clear | ||
| ___hudVC.view.isOpaque = false | ||
| await rootVC.present(___hudVC, animated: true) | ||
| return ___hudVC | ||
| } | ||
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| @MainActor | ||
| static func dismissHUDViewController(hudVC: UIViewController?, stateWrapper: HUDView.StateWrapper, configuration: HUDView.Configuration) async { | ||
| guard let successMessage = configuration.successMessage else { | ||
| await hudVC?.dismiss(animated: true) | ||
| return | ||
| } | ||
| withAnimation { | ||
| stateWrapper.isSuccess = true | ||
| } | ||
| try? await Task.sleep(nanoseconds: UInt64(successMessage.timeInterval) * 1_000_000_000) | ||
| await hudVC?.dismiss(animated: true) | ||
| stateWrapper.isSuccess = false | ||
| } | ||
| } | ||
| #endif | ||
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| struct HUDView: View { | ||
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| class StateWrapper: ObservableObject { | ||
| init(isSuccess: Bool) { | ||
| self.isSuccess = isSuccess | ||
| } | ||
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| @Published | ||
| var isSuccess: Bool | ||
| } | ||
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| struct Configuration: Sendable { | ||
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| init(font: Font = .body, dimsBackground: Bool = false, loadingMessage: String? = nil, successMessage: SuccessMessage? = nil) { | ||
| self.loadingMessage = loadingMessage | ||
| self.dimsBackground = dimsBackground | ||
| self.font = font | ||
| self.successMessage = successMessage | ||
| } | ||
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| let loadingMessage: String? | ||
| let font: Font | ||
| let dimsBackground: Bool | ||
| let successMessage: SuccessMessage? | ||
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| struct SuccessMessage: Sendable { | ||
| public init(message: String, timeInterval: TimeInterval = 3) { | ||
| self.message = message | ||
| self.timeInterval = timeInterval | ||
| } | ||
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| let message: String | ||
| let timeInterval: TimeInterval | ||
| } | ||
| } | ||
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| @ObservedObject | ||
| var stateWrapper: StateWrapper | ||
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| let configuration: Configuration | ||
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| @ScaledMetric | ||
| private var hudImageSize = 60.0 | ||
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| @ScaledMetric | ||
| private var hudContentSize = 120.0 | ||
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| var body: some View { | ||
| VStack(alignment: .center, spacing: 8) { | ||
| hudImage | ||
| .frame(width: hudImageSize, height: hudImageSize) | ||
| if let textMessage { | ||
| Text(textMessage) | ||
| } | ||
| } | ||
| .transition(.scale.combined(with: .opacity)) | ||
| .animation(.default, value: stateWrapper.isSuccess) | ||
| .font(configuration.font) | ||
| .padding() | ||
| .frame(minWidth: hudContentSize, minHeight: hudContentSize) | ||
| .background(.regularMaterial, in: RoundedRectangle(cornerRadius: 8)) | ||
| .frame(maxWidth: .infinity, maxHeight: .infinity) | ||
| .background { | ||
| if configuration.dimsBackground { | ||
| Color.black.opacity(0.2) | ||
| } | ||
| } | ||
| .ignoresSafeArea() | ||
| } | ||
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| private var textMessage: String? { | ||
| if stateWrapper.isSuccess, let successMessage = configuration.successMessage { | ||
| return successMessage.message | ||
| } else if let loadingMessage = configuration.loadingMessage { | ||
| return loadingMessage | ||
| } else { | ||
| return nil | ||
| } | ||
| } | ||
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| @ViewBuilder | ||
| private var hudImage: some View { | ||
| if stateWrapper.isSuccess { | ||
| Image(systemName: "checkmark") | ||
| .font(.largeTitle) | ||
| } else { | ||
| ProgressView() | ||
| .tint(.primary) | ||
| .scaleEffect(1.5) | ||
| } | ||
| } | ||
| } |
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