View+dismissTop.swift (3490B)
1 // MIT License 2 // Copyright © Nicolai Harbo 3 // 4 // Permission is hereby granted, free of charge, to any person obtaining a copy of this software 5 // and associated documentation files (the "Software"), to deal in the Software without restriction, 6 // including without limitation the rights to use, copy, modify, merge, publish, distribute, 7 // sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is 8 // furnished to do so, subject to the following conditions: 9 // 10 // The above copyright notice and this permission notice shall be included in all copies or 11 // substantial portions of the Software. 12 // 13 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING 14 // BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 15 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 16 // DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 17 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 18 // 19 import SwiftUI 20 21 /// This is just a workaround for a SwiftUI bug 22 /// A presented sheet (SwiftUI view) doesn't always close when calling "dismiss()" provided by @Environment(\.dismiss), 23 /// so we are walking the view stack to find the top presentedViewController (UIKit) and dismiss it. 24 extension View { 25 @MainActor @discardableResult 26 func dismissTop(_ stack: CallStack, animated: Bool = true) -> Bool { 27 let windows = UIApplication.shared.connectedScenes.compactMap { 28 ($0 as? UIWindowScene)?.keyWindow // TODO: iPad might have more than 1 window 29 } 30 if var topController = windows.first?.rootViewController { 31 var gotPresented = false 32 var currentController = topController 33 while let presentedViewController = currentController.presentedViewController { 34 currentController = presentedViewController 35 gotPresented = true 36 } 37 if gotPresented { 38 currentController.dismiss(animated: animated) 39 return true 40 } else if let navController = Self.findNavigationController(viewController: topController) { 41 navController.popToRootViewController(animated: animated) 42 return true 43 } else { 44 print("Yikes❗️ There is no navigationController!") 45 } 46 } else { 47 print("Yikes❗️ There is no window/rootViewController!") 48 } 49 return false 50 } 51 @MainActor static func findNavigationController(viewController: UIViewController?) -> UINavigationController? { 52 guard let viewController = viewController else { 53 return nil 54 } 55 56 if let tabBarController = viewController as? UITabBarController { 57 return findNavigationController(viewController: tabBarController.selectedViewController) 58 } 59 60 if let navigationController = viewController as? UINavigationController { 61 return navigationController 62 } 63 64 for childViewController in viewController.children { 65 return findNavigationController(viewController: childViewController) 66 } 67 68 return nil 69 } 70 } 71 // MARK: - 72 extension View { 73 @MainActor 74 static func endEditing() { 75 UIApplication.shared.windows.forEach { $0.endEditing(true) } 76 } 77 }