Swiftui应用程序随着＆＃x27; nsinvalidargumentException崩溃＆＃x27;仅当列表单元格从搜索中挖掘

Question

更新： 现在，我已经能够在最小的应用程序环境中成功复制该问题。请参阅新的myview.swift。

正如标题所暗示的那样，我的SwiftUI应用只有在从搜索栏中挖掘出list单元格时，就会使用nsinvalidargumentException崩溃。

我的问题是：

我有一个list声明.searchable，该使用导航链接到另一个list，这也是声明.searchable。第二个列表带有.sheet第一个列表中的搜索效果很好。另一方面，如果用户应用无需搜索，则第二个列表可以正常工作。但是，如果用户在搜索框中搜索，然后点击一个过滤结果，则该应用程序显示模式页面并加载所有内容，然后崩溃。

如果我从弹出窗口中删除navigationView，则该应用将不再崩溃。但是，然后从其背后的搜索栏将继续进行我不想要的弹出窗口。

这是从控制台中的错误消息：

2022-05-21 08:34:38.579406-0700 MyApp[68653:3984705] [Presentation] Attempt to present <_TtGC7SwiftUI29PresentationHostingControllerVS_7AnyView_: 0x100baa2d0> on <_TtGC7SwiftUI19UIHostingControllerGVS_15ModifiedContentVS_7AnyViewVS_12RootModifier__: 0x100c08680> (from <_TtGC7SwiftUI19UIHostingControllerGVS_15ModifiedContentVS_7AnyViewVS_24NavigationColumnModifier__: 0x102d0bdf0>) which is already presenting <_TtGC7SwiftUI29PresentationHostingControllerVS_7AnyView_: 0x100b8f3f0>.
2022-05-21 08:34:38.579913-0700 MyApp[68653:3984705] [Presentation] Attempt to present <_TtGC7SwiftUI29PresentationHostingControllerVS_7AnyView_: 0x100bb3260> on <_TtGC7SwiftUI19UIHostingControllerGVS_15ModifiedContentVS_7AnyViewVS_12RootModifier__: 0x100c08680> (from <_TtGC7SwiftUI19UIHostingControllerGVS_15ModifiedContentVS_7AnyViewVS_24NavigationColumnModifier__: 0x102d0bdf0>) which is already presenting <_TtGC7SwiftUI29PresentationHostingControllerVS_7AnyView_: 0x100b8f3f0>.
2022-05-21 08:34:38.605787-0700 MyApp[68653:3984705] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Application tried to present modally a view controller <SwiftUI.SwiftUISearchController: 0x10119f000> that is already being presented by <_TtGC7SwiftUI19UIHostingControllerGVS_15ModifiedContentVVS_22_VariadicView_Children7ElementVS_24NavigationColumnModifier__: 0x100bac8b0>.'
*** First throw call stack:
(0x1c9b0dd78 0x1e2772734 0x1cc3b4e98 0x1cc1a1b68 0x1cc152210 0x1cc385898 0x1cc1239dc 0x1cc20cd38 0x1cc1200c8 0x100a18c6c 0x100a1a7bc 0x100a2ac68 0x100a2a7a4 0x1c9ac62f0 0x1c9a801f4 0x1c9a936b8 0x1e5b2d374 0x1cc3f8e88 0x1cc17a5ec 0x1d18ca640 0x1d17f8524 0x1d17d9810 0x1004da4c0 0x1004da570 0x100985ce4)
libc++abi: terminating with uncaught exception of type NSException
dyld4 config: DYLD_LIBRARY_PATH=/usr/lib/system/introspection DYLD_INSERT_LIBRARIES=/Developer/usr/lib/libBacktraceRecording.dylib:/Developer/usr/lib/libMainThreadChecker.dylib:/Developer/Library/PrivateFrameworks/DTDDISupport.framework/libViewDebuggerSupport.dylib
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Application tried to present modally a view controller <SwiftUI.SwiftUISearchController: 0x10119f000> that is already being presented by <_TtGC7SwiftUI19UIHostingControllerGVS_15ModifiedContentVVS_22_VariadicView_Children7ElementVS_24NavigationColumnModifier__: 0x100bac8b0>.'
terminating with uncaught exception of type NSException
(lldb)

_

复制步骤：

1. 获取示例代码在下面
2. 运行app
3. 项目
4. 在下一个列表中的第一个列表搜索“ 1”中，在下一个列表中的
5. “ 1”点击点击第一个结果
6. 该应用应该崩溃

_

这是一个示例应用程序，我可以在其中复制行为。

test_appapp.swift：

import SwiftUI

@main
struct Test_AppApp: App {
    var body: some Scene {
        WindowGroup {
            ContentView()
        }
    }
}

contentview.swift.swift：

import SwiftUI

struct ContentView: View {
    
    @State var sheetIsPresented:Bool = false
    
    @State var searchText:String = ""
    
    struct item: Identifiable {
        var id:String
        var string:String
    }
    
    func getItems() -> Array<item> {
        let items = ["Item 1", "Item 2", "Item 3", "Item 4"].map({ item(id: UUID().uuidString, string: $0) })
        
        if searchText == "" {
            return items
        } else {
            return items.filter({ $0.string.contains(searchText) })
        }
    }
    
    var body: some View {
        NavigationView {
            List {
                ForEach(getItems()) { item in
                    NavigationLink(item.string) {
                        NextView()
                    }
                }
                /*
                .onDelete { index in
                    print("delete")
                    
                }
                 */
                
            }
            .searchable(text: $searchText)
            .navigationTitle("Test App")
            .navigationBarTitleDisplayMode(.large)
        }
    }
}


struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}

nextView.swift.swift：

import SwiftUI

struct NextView: View {
    
    @State var sheetIsPresented:Bool = false
    
    @State var searchText:String = ""
    
    struct item: Identifiable {
        var id:String
        var string:String
    }
    
    func getItems() -> Array<item> {
        let items = ["Item 1", "Item 2", "Item 3", "Item 4"].map({ item(id: UUID().uuidString, string: $0) })
        
        if searchText == "" {
            return items
        } else {
            return items.filter({ $0.string.contains(searchText) })
        }
    }
    
    var body: some View {
        List {
            ForEach(getItems()) { item in
                
                HStack {
                    Button {
                        sheetIsPresented = true
                    } label: {
                        HStack {
                            Image(systemName: "shippingbox")
                            Text(item.string)
                                .foregroundColor(Color.black)
                        }
                    }
                    .sheet(isPresented: $sheetIsPresented, content: {
                        MyView()
                    })
                }
            }
            /*
            .onDelete { index in
                print("delete")
                
            }
             */
            
        }
        .searchable(text: $searchText)
        .navigationTitle("Test App")
    }
}

struct NextView_Previews: PreviewProvider {
    static var previews: some View {
        NextView()
    }
}

myview.swift：swift：

import SwiftUI

struct MyView: View {
    var body: some View {
        NavigationView {
            List {
                Text("Test")
            }
        }
        .navigationBarTitle("Test Page")
    }
}

struct MyView_Previews: PreviewProvider {
    static var previews: some View {
        MyView()
    }
}