swiftui

问题 Goal is to load 2 different images (image 1 and 2) with the new .fileImporter modifier. Problem is I get the same image loaded to both thumbnails (image 1 and 2). Have anyone managed to do that with .fileImporter modifier? import SwiftUI struct ContentView: View { @State var openFile = false @State var img1 = UIImage() @State var img2 = UIImage() @State var fileName = "" var body: some View { Form { //image 1 Button(action: { self.openFile.toggle() }){ Image(uiImage: self.img1) .renderingMode

问题 Goal is to load 2 different images (image 1 and 2) with the new .fileImporter modifier. Problem is I get the same image loaded to both thumbnails (image 1 and 2). Have anyone managed to do that with .fileImporter modifier? import SwiftUI struct ContentView: View { @State var openFile = false @State var img1 = UIImage() @State var img2 = UIImage() @State var fileName = "" var body: some View { Form { //image 1 Button(action: { self.openFile.toggle() }){ Image(uiImage: self.img1) .renderingMode

问题 I have a problem related on my List view. The question is simple: how can I get rid of that wierd gray rectangle showing on top of the TabBar? I didn't code that, I just implemented a controller with a List and NavigationBar and then it showed that thing. For more clear explanation I post the images: ItemRow.swift code: import SwiftUI struct ItemRow: View { static let colors: [String: Color] = ["D": .purple, "G": .orange, "N": .red, "S": .yellow, "V": .pink] var item: MenuItem var body: some

问题 I was looking for good solutions for loading images asynchronously from a remote server image URL. There were many solutions online. It's a shame Apple doesn't provide one natively for something that is so common. Anyways, I found Sundell's blog really interesting and took the good bits from it to create my own ImageLoader, as shown below: import Combine class ImageLoader { private let urlSession: URLSession private let cache: NSCache<NSURL, UIImage> init(urlSession: URLSession = .shared,

问题 I’m after a vertical scrollview that’s infinite both ways: scrolling up to the top or down to the bottom results in more items being added dynamically. Almost all help I’ve encountered is only concerned with the bottom side being infinite in scope. I did come across this relevant answer but it’s not what I’m specifically looking for (it’s adding items automatically based on time duration, and requires interaction with direction buttons to specify which way to scroll). This less relevant

问题 I'm trying to draw the following shape with SwiftUI: Before SwiftUI I just had to create a UIBezierPath, add the corners with addArc and then finally call close(), but I don't get the same result when calling closeSubpath on SwiftUI Path. Here's my code: Path { path in let width: CGFloat = 23 let height: CGFloat = 24 let arrowWidth = height / 2.0 let cornerRadius = height / 7.5 path.addArc(center: CGPoint(x: width - cornerRadius, y: cornerRadius), radius: cornerRadius, startAngle: Angle

问题 I have this code and would expected a b as Text. Result: a a -> see screenshot. What am I doing wrong? import SwiftUI class PublishString : ObservableObject { init(string: String) { self.string = string print(self.string) } @Published var string : String = "a" } struct ContentView: View { @EnvironmentObject var text1 : PublishString @EnvironmentObject var text2 : PublishString var body: some View { VStack { Text(text1.string) Text(text2.string) } } } struct ContentView_Previews:

问题 I have a view that's receiving an ID value from the previous view. I need to also take that ID value and pass it into an ObservableObject so that I can run a Firestore query on that ID. I'm at a loss as to how to grab that ID for my ObservableObject. struct ItemView: View { var itemName: String var itemID: String @ObservedObject var items = getItemsData() // ..... etc } class getItemsData() { @Published var data = [items]() init() { let db = Firestore.firestore() db.collection("items")

问题 I have a list of profile images (of various sizes) that I want each one to downsize to fit into its view, but I don't want them to be upsized and be pixilated. Instead, I want small images to stay at the resolution they are at. How do I can achieve this? This is what I've been using so far (but it resizes up): VStack { Image(...) .resizable() .scaledToFill() }.frame(width:200, height:200) 回答1: I did not find simple solution in API either, so here is a placeholder that looks appropriate for me

问题 what I am trying to accomplish is have a loop of items where I am able to tap one and it gets bigger programmatically once tapped here is my code and my results so far: struct ContentView: View { @State var emojisArray = ["📚", "🎹", "🎯", "💻"] @State var selectedIndex = 0 var body: some View { VStack { ScrollView(.horizontal) { HStack { ForEach(0..<emojisArray.count) { item in emojiView(emoji: self.emojisArray[item], isSelected: item == self.selectedIndex ? true : false) .onTapGesture { print