I want to save some configure information for my app. Which technology should be used to save configuration information? SwiftData or a json file? I'm not sure whether it's appropriate to use SwiftData.It seems that SwiftData is suitable for saving multiple data of the same type, such as saving multiple student information. If I use SwiftData to save a configuration information, there may be the following code in the place where it is used: @query private var configs:[ConfigInfo] … name = configs[0].name If there are other ways to implement it, please let me know. Thanks.

I want to implement a function to generate a report in the form of pages using the model data of the iOS application. I didn't find the relevant API. Please help me find a relevant SDK and some examples. Thanks.

@State private var selectedItems:[PhotosPickerItem] = [] { didSet { print("items changed.") } } ... PhotosPicker( selection: $selectedItems, matching: .images, ) { Text("select pictures") } I want to know selectedItem changed, but didSet of selectedItems is not work. Is there any other way to inform me: Has the user selected some pictures? I want to create a task to load picture and display them to view after user selected some picture. Thank you.

Hello all, I saw the update of xcode26 on the App store, and from the compatibility information, I saw that xcode26 supports macos15.6 and higher. I'm not sure if xcode26 can be installed on macos 15. I can't install xcode26 on macOS 15.7.

I got a preview crash info as this: xxx crashed due to fatalError in PersistentModel.swift at line 559. This KeyPath does not appear to relate RecordInfo to anything - \RecordInfo.<computed 0x00000001921dfb4e (Array<SomeInfo>)> If I change preview device to iPhoneSE, It is no crash. I think the reason is I have some dirty data in iPhone16 Pro preview device. If I'm right and how to delete it? Model of RecordInfo like this: @Model class RecordInfo { @Relationship(deleteRule: .cascade) var someInfo:[SomeInfo] } @Model class SomeInfo { var date: Date var info: String }

Hello all. This is my code snippet. RecordListView() .tabItem { Label("Record List", systemImage: "list.clipboard") } .tag(Tab.RecordList) When I export localizations, there is no Record List in the .xcloc file. Then I use LocalizedStringKey for Label and export localizations file, the code is as follows: let RecordsString:LocalizedStringKey = "Tab.Records" RecordListView() .tabItem { Label(RecordsString, systemImage: "list.clipboard") } .tag(Tab.RecordList) There is still no Tab.Records.

Maybe I didn't find the relevant instructions. In my code, I only want to get the first 7 elements. At present, my code is as follows: @Query(sort:\Record.date, order: .reverse) private var records:[Record] But I wonder if once the number of records is large, will it affect the efficiency? In View, it is enough for me to count the first 7 elements in records. What should I do?

Maybe I didn't find the relevant instructions. In my code, I only want to get the first 7 elements. At present, my code is as follows: @Query(sort:\Record.date, order: .reverse) private var records:[Record] But I wonder if once the number of records is large, will it affect the efficiency? In View, it is enough for me to count the first 7 elements in records. What should I do?