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Getting image from camera in SwiftUI - Stack Overflow

programmeradmin4浏览0评论

I have been working on getting the camera view to work within SwiftUI. I have been able to get it to show and or select a photo. However i have not been able to get it to save to swift data. i'm sure it is something stupid that i am missing but any help would be appreciated. The biggest thing is trying to get the photo and then converting it from UIimage so it can be stored in swift data. review.foodImage is where I need to get it.

Edit Meal View


import SwiftUI
import PhotosUI
import SwiftData
import UIKit

struct EditMealView: View {
    @Binding var isPresentingNewMealView: Bool
    @Environment(\.modelContext) private var modelContext
    @State var mealImage: Image? = nil
    @State private var selectedItem: PhotosPickerItem? = nil
    @Bindable var review: Review
    @State private var imageData: Data?
    @State var selection: TextSelection? = nil
    @State private var locationService = LocationService(completer: .init())
    @State private var search: String = ""
    @State private var isPresentingLocationView = false
    
    @State private var sourceType: UIImagePickerController.SourceType = .photoLibrary
    @State private var selectedImage: UIImage?
    @State private var isImagePickerDisplay = false
    
    
    let foodTypeList: [String] = ["Fast Food", "Pub Food", "Vegetarian", "Central African", "Happy Hour", "Dog Friendly", "Family Friendly", "East African", "North African", "Southern Africa", "West African", "Latin American", "Native American", "Canadian", "Carribean", "Mexican", "American", "Southern American", "Fusion", "Central American", "South American", "Chinese", "Japanese", "Korean", "Indian", "Middle Eastern", "Thai", "Turkish", "Vietnamese", "Italian", "French", "German", "Spanish", "Greek", "Romanian", "Russian", "Eastern European", "Scandinavian", "British", "Dutch", "Swedish", "Norwegian", "Icelandic", "Irish", "Polynesian", "Australian", "New Zealand", "Other"].sorted()
    
    var body: some View {
        NavigationStack {
            ZStack {
                LinearGradient(gradient: Gradient(colors: [Color(red: 0.9725490196078431, green: 0.9607843137254902, blue: 0.8627450980392157, opacity: 1), Color(red: 0.9137254901960784, green: 0.9254901960784314, blue: 0.8509803921568627, opacity: 1), Color(red: 0.9882352941176471, green: 0.7529411764705882, blue: 0.13333333333333333, opacity: 1), Color(red: 0.9450980392156862, green: 0.47058823529411764, blue: 0.08627450980392157, opacity: 1)]), startPoint: .top, endPoint: .bottom).ignoresSafeArea()
                
                    .navigationTitle("Add Meal")
                
                VStack{
                    Form {
                        
                        TextField("Menu Item", text: $review.foodName)
                            .listRowBackground(Color.clear)
                            .autocorrectionDisabled()
                        
                        HStack {
                            Button(action: {isPresentingLocationView = true}
                            ) {
                                Text("Location")
                                Image(systemName: "map")
                            }
                            
                            .sheet(isPresented: $isPresentingLocationView) {
                                AddressView(isPresentingLocationView: $isPresentingLocationView, review: review)
                            }
                            VStack {
                                Text("\(review.restaurantName)")
                                    .bold()
                                    .listRowBackground(Color.clear)
                                    .autocorrectionDisabled()
                                Text("\(review.location)")
                                    .listRowBackground(Color.clear)
                                    .autocorrectionDisabled()
                            }
                            .padding()
                            
                        }
                        .listRowBackground(Color.clear)
                        Picker(selection: $review.foodType, label: Text("Food Category")) {
                            ForEach(0..<foodTypeList.count, id: \.self) {
                                Text(self.foodTypeList[$0])
                                    .tag(self.foodTypeList[$0])
                            }
                            
                        }
                        .listRowBackground(Color.clear)
                        
                        HStack{
                            Spacer()
                            RatingView(rating: $review.rating)
                                .multilineTextAlignment(TextAlignment.center)
                            Spacer()
                        }
                        .buttonStyle(.plain)
                        .listRowBackground(Color.clear)
                        
                        if let imageData = review.foodImage, let uiImage = UIImage(data: imageData) {
                            Image(uiImage: uiImage)
                                .resizable()
                                .scaledToFit()
                        }
                        
                        HStack{

                            Spacer()
                            Button("", systemImage: "camera.fill")
                            {
                                self.sourceType = .camera
                                self.isImagePickerDisplay.toggle()
                                print("camera")
                            }.padding()
                               
                            Button("", systemImage: "photo.fill.on.rectangle.fill") {
                                self.sourceType = .photoLibrary
                                self.isImagePickerDisplay.toggle()
                                print( "photo library")
                            }.padding()
                            Spacer()
                        }
                        .sheet(isPresented: self.$isImagePickerDisplay) {
                        ImagePickerView(selectedImage: self.$selectedImage, sourceType: self.sourceType)
                            
                        }
                        

                        .listRowBackground(Color.clear)
                        .padding()
                        .buttonStyle(BorderlessButtonStyle())
                        
                        Text("Notes")
                            .font(.headline)
                            .listRowBackground(Color.clear)
                        
                        TextEditor(text: $review.reviewNotes, selection: $selection)
                            .background(Color.white.opacity(0.40))
                            .listRowBackground(Color.clear)
                    }
                    .listRowBackground(Color.clear)
                    .padding()
                    Spacer()
                }
            }
            
        
        .scrollDismissesKeyboard(.immediately)
        .scrollContentBackground(.hidden)
        .toolbar {
            ToolbarItem(placement: .cancellationAction) {
                Button("Dismiss") {
                    isPresentingNewMealView = false
                }
            }
            ToolbarItem(placement: .confirmationAction) {
                Button("Save") {
                    let newReview = review
                    review.lastModified = Date.now
                    modelContext.insert(newReview)
                    isPresentingNewMealView = false
                    
                }
            }
        }
        }
        
    }
    
    
    func loadPhoto() {
        Task { @MainActor in
            review.foodImage = selectedImage?.pngData()
        }
    }
}

Image picker view

import SwiftUI
import UIKit

struct ImagePickerView: UIViewControllerRepresentable {
    @Binding var selectedImage: UIImage?
    @Environment(\.presentationMode) var isPresented
    
    var sourceType: UIImagePickerController.SourceType
    
    func makeUIViewController(context: Context) -> UIImagePickerController {
        let imagePicker = UIImagePickerController()
        imagePicker.sourceType = self.sourceType
        return imagePicker
    }
    
    func updateUIViewController(_ uiViewController: UIImagePickerController, context: Context) {

    }
    
    // Connecting the Coordinator class with this struct
    func makeCoordinator() -> Coordinator {
        return Coordinator(picker: self)
    }
    
    
}

class Coordinator: NSObject, UINavigationControllerDelegate, UIImagePickerControllerDelegate {
    
    var picker: ImagePickerView
    
    init(picker: ImagePickerView) {
        self.picker = picker
    }
    
    func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
        guard let selectedImage = info[.originalImage] as? UIImage else { return }
        self.picker.selectedImage = selectedImage
        self.picker.isPresented.wrappedValue.dismiss()
    }
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