can any body tell me how to connect postgresql in swiftuii am new with swiftui

how to get page transferred in swiftui button click action

SwiftUI:I am trying to transfer to secondView from firstView on iPad Pro(11inch) Horizontal screen,the secondView can not be showed in full screenhere is my code:import SwiftUIstruct ContentView: View { @State var showsecondView: Bool = false var body: some View { Button(action: { self.showsecondView.toggle() }) { Text("firstView") }.sheet(isPresented: self.$showsecondView){ secondView(showsecondView: self.$showsecondView) } }}struct ContentView_Previews: PreviewProvider { static var previews: some View { ContentView() }}struct secondView: View { @Binding var showsecondView: Bool var body: some View { Text("secondView") }}

SwiftUI: how to save the camera photo to somewhere of my apphere is my code :ContentView.swift:import SwiftUI struct ContentView: View { @State private var showImagePicker: Bool = false @State private var image:Image? = nil var body: some View { VStack{ image?.resizable() .scaledToFit() .clipShape(Circle()) Spacer() Button("take photo"){ self.showImagePicker = true }.padding() .background(Color.green) .font(.system(size: 40)) .foregroundColor(Color.white) .cornerRadius(90) Spacer().frame(width: 0, height: 20, alignment: .topLeading) }.sheet(isPresented: self.$showImagePicker){ PhotoCaptureView(showImagePicker: self.$showImagePicker, image: self.$image) } } } struct ContentView_Previews: PreviewProvider { static var previews: some View { ContentView() } }PhotoCapture.swift:import SwiftUI struct PhotoCaptureView: View { @Binding var showImagePicker: Bool @Binding var image:Image? var body: some View { ImagePicker(isShown: $showImagePicker, image: $image) } } #if DEBUG struct PhotoCaptureView_Previews: PreviewProvider { static var previews: some View { PhotoCaptureView(showImagePicker: .constant(false), image: .constant(Image(""))) } } #endifImagePicker.swift:import Foundation import SwiftUI class ImagePickerCoorinator: NSObject, UINavigationControllerDelegate,UIImagePickerControllerDelegate { @Binding var isShown: Bool @Binding var image: Image? init(isShown: Binding, image: Binding<image?>){ _isShown = isShown _image = image } func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) { let uiImage = info[UIImagePickerController.InfoKey.originalImage] as! UIImage image = Image(uiImage:uiImage) isShown = false } func imagePickerControllerDidCancel(_ picker: UIImagePickerController) { isShown = false } } struct ImagePicker: UIViewControllerRepresentable { @Binding var isShown: Bool @Binding var image: Image? func updateUIViewController(_ uiViewController: UIImagePickerController, context: UIViewControllerRepresentableContext) { } func makeCoordinator() -> ImagePickerCoorinator { return ImagePickerCoorinator(isShown: $isShown, image: $image) } func makeUIViewController(context: UIViewControllerRepresentableContext) -> UIImagePickerController { let picker = UIImagePickerController() picker.delegate = context.coordinator picker.sourceType = .camera picker.allowsEditing = false picker.cameraDevice = .front picker.cameraCaptureMode = .photo picker.cameraFlashMode = .off picker.showsCameraControls = true picker.videoQuality = .type640x480 //picker.cameraViewTransform = picker.cameraViewTransform.scaledBy(x: 1, y: -1) picker.isEditing = true return picker } }

how can I show the user.name from db with swiftui picker?i have already gotten the data from db and saved in Object Userhere is my code :UserList.swiftimport Foundation import Combine class UserList: ObservableObject { @Published var users: [User] = [] init() { load() } func load() { let url = URL(string: "http://localhost:3000/user")! URLSession.shared.dataTask(with: url) { data, response, error in DispatchQueue.main.async { self.users = try! JSONDecoder().decode([User].self, from: data!) } }.resume() } } //struct User: Decodable, Identifiable { struct User: Decodable { var id: Int var name: String }ContentView.swiftimport SwiftUI struct ContentView: View { var body: some View { Picker(selection: /*@START_MENU_TOKEN@*/.constant(1)/*@END_MENU_TOKEN@*/, label: /*@START_MENU_TOKEN@*/Text("Picker")/*@END_MENU_TOKEN@*/) { /*@START_MENU_TOKEN@*/Text("1").tag(1)/*@END_MENU_TOKEN@*/ /*@START_MENU_TOKEN@*/Text("2").tag(2)/*@END_MENU_TOKEN@*/ } } } struct ContentView_Previews: PreviewProvider { static var previews: some View { ContentView() } }

how to insert data with Postgrest APII have get data from postgresql with postgrest API in switUI,here is my code for "SELECT * FROM USER;":import Foundation import Combine class UserList: ObservableObject { @Published var users: [User] = [] init() { load() } func load() { let url = URL(string: "http://localhost:3000/user")! URLSession.shared.dataTask(with: url) { data, response, error in DispatchQueue.main.async { self.users = try! JSONDecoder().decode([User].self, from: data!) } }.resume() } } //struct User: Decodable, Identifiable { struct User: Decodable { var id: Int var name: String }

I wat to show data from db in picker. i made it work if I use "data",now I want to change "data" to "data1",then i get the error:"Cannot use instance member 'store' within property initializer; property initializers run before 'self' is available"at line 09.how to resole it?here is my code:Userlist.swiftimport Foundation import Foundation import Combine class Userlist: ObservableObject { @Published var mainlist: [Mainlist] = [] init() { load() } func load() { let url = URL(string: "http://localhost:3000/name_v")! URLSession.shared.dataTask(with: url) { data, response, error in DispatchQueue.main.async { self.mainlist = try! JSONDecoder().decode([Mainlist].self, from: data!) } }.resume() } } struct Mainlist: Decodable{ let name: String }ContentView.swiftimport SwiftUI struct ContentView: View { @ObservedObject var store = Userlist() @State var selectedStrength = [""] // var data: [String] = ["str1", "str2", "str3", "str4"] var data1: [Mainlist] = store.mainlist var body: some View { singlePicke(data: data,selectedStrength: $selectedStrength) } } struct singlePicke: View{ let data: [String] @Binding var selectedStrength: [String] var body: some View{ GeometryReader{Geometry in Picker("picker",selection:self.$selectedStrength[0]){ ForEach(00..<self.data.count){raw in<br=""> Text(verbatim:self.data[raw]).tag(self.data[raw]) } } } } } struct ContentView_Previews: PreviewProvider { static var previews: some View { ContentView() } }

swiftui:I can show data from db in list, but it shown nothing in picker, how can I fix ithere is my code:ContentView.swift:import SwiftUI struct ContentView: View { @ObservedObject var model = PostListViewModel() @State private var selectedStrength = 0 var body: some View { // List(model.posts) { post in // Text(String(post.name)) // } Picker(selection: $selectedStrength, label: Text("picker")) { ForEach(model.posts) { post in Text(post.name) } } } } struct ContentView_Previews: PreviewProvider { static var previews: some View { ContentView() } }PostListViewModel.swiftimport Foundation import SwiftUI import Combine final class PostListViewModel: ObservableObject { init() { fetchPosts() } @Published var posts = [Post]() private func fetchPosts() { Webservice().getAllPosts { self.posts = $0 } } }Post.swiftimport Foundation import SwiftUI struct Post: Codable,Hashable,Identifiable{ let id: Int let name: String }Webservice.swiftimport Foundation class Webservice{ func getAllPosts(completion: @escaping ([Post]) -> ()){ guard let url = URL(string: "http://localhost:3000/user") else{ fatalError("URL is not correct") } URLSession.shared.dataTask(with: url){ data, _, _ in let posts = try! JSONDecoder().decode([Post].self, from: data!) DispatchQueue.main.async { completion(posts) } }.resume() } }

I took a photo on the secondView,but the photo showed on the ContentView,how can I fix this.I want to take photo on both view(ContentView,SecondView)here is my code :import SwiftUI struct ContentView: View { @State var showImagePicker: Bool = false @State var image:Image? = nil @State var showsecondView: Bool = false @State var show:Bool = false var body: some View { ZStack { VStack{ image?.resizable() .scaledToFit() .clipShape(Circle()) Button("take photo"){ self.showImagePicker = true //self.showEntryView.toggle() }.padding() Button(action: { self.showsecondView.toggle() }) { Text("firstView") } } .sheet(isPresented: self.$showImagePicker){ PhotoCaptureView(showImagePicker: self.$showImagePicker, image: self.$image) } if self.showsecondView { SecondView(showsecondView: self.$showsecondView,showImagePicker:self.$showImagePicker) .frame(maxWidth: .infinity, maxHeight: .infinity) .background(Color.red) .animation(.easeInOut) .transition(.move(edge: .bottom)) }} } } struct SecondView: View { @Binding var showsecondView: Bool @Binding var showImagePicker: Bool @State var image:Image? = nil var body: some View { ZStack(alignment: .leading) { VStack { Button(action: { self.showsecondView = false }) { Text("dismiss") } Text("secondView") image?.resizable() .scaledToFit() .clipShape(Circle()) Button("take photo"){ self.showImagePicker = true //self.showEntryView.toggle() }.padding() // .sheet(isPresented: self.$showImagePicker){ // PhotoCaptureView(showImagePicker: self.$showImagePicker, image: self.$image) // } } if self.showImagePicker { PhotoCaptureView(showImagePicker: self.$showImagePicker, image: self.$image) .frame(maxWidth: .infinity, maxHeight: .infinity) .background(Color.red) .animation(.easeInOut) .transition(.move(edge: .bottom)) } } } } struct ContentView_Previews: PreviewProvider { static var previews: some View { ContentView() } }

swiftUI:how to get button enabled until all checkbox get checkedhere is my code:i want get button(logout) enabled until checkbox(check1~check5) all checkedCheckView.swift:import SwiftUI struct CheckView: View { @State var isChecked:Bool = false var title:String var count:Int = 0 func toggle(){isChecked = !isChecked} var body: some View { HStack{ Button(action: toggle) { Image(systemName: isChecked ? "checkmark.square" : "square") } Text(title) } } } #if DEBUG struct CheckView_Previews: PreviewProvider { static var previews: some View { CheckView(title:"Title") } } #endifExitCheckListData.swift:import Foundation let exitCheckListdata = [ ExitCheckListItem(id:0,title: "check1"), ExitCheckListItem(id:1,title: "check2"), ExitCheckListItem(id:2,title: "check3"), ExitCheckListItem(id:3,title: "check4"), ExitCheckListItem(id:4,title: "check5") ]ContentView.swift:List(exitCheckListdata){ item in CheckView(isChecked: item.isChecked, title: item.title) } .font(.title) Button(action: { }) { Text("logout") }

I am trying insert into db use post method in swiftand i can not get the response.statusCode of post method in swiftui viewhow can i fix itimport SwiftUI struct ContentView: View { @State var resp:Int = 0 var body: some View { VStack{ Text("Hello, World!") Button(action: { self.resp = postAdd() print("view\(self.resp)") }) { Text(/*@START_MENU_TOKEN@*/"Button"/*@END_MENU_TOKEN@*/) .background(self.resp == 201 ? Color.green : Color.gray) } } } } struct ContentView_Previews: PreviewProvider { static var previews: some View { ContentView() } } func postAdd() ->Int{ let url = URL(string: "http://localhost:3000/user") var request = URLRequest(url: url!) var resp = 0 request.httpMethod = "POST" let urlstr = "id=5&name=aaa" request.httpBody = urlstr.data(using: .utf8)! let session = URLSession.shared session.dataTask(with: request) { (data, response, error) in if error == nil, let data = data, let response = response as? HTTPURLResponse { print("Content-Type: \(response.allHeaderFields["Content-Type"] ?? "")") print("statusCode: \(response.statusCode)") resp = response.statusCode print(String(data: data, encoding: .utf8) ?? "") } }.resume() return resp }

for example :how to change the image border color when i click a button