In your code, requestTest is a name of a function. Using a function name in a condition of if-statement does not make sense.
To use if-statement, you need an expression returning Bool.
Please try something like this:
import SwiftUI
struct ContentView: View {
@State private var tweetID = ""
@State private var tweetStatus = ""
@State private var response = ""
@State var showAlert = false
@State var sendToWebhook = false
@State var isRequestInProgress: Bool = false //<-
var body: some View {
NavigationView {
Form {
Section(footer: Text("Test")) {
TextField("Field to place response data", text: $response)
TextEditor( text: $tweetStatus)
.frame(height: 100)
}
Section {
Button("Get Data") {
// Where progress should start before function
//↓Writing a View in an action closure does not make sensse
//ProgressView("Test", value: 100, total: 100)
requestTest() { results in
response = results
if response == "No Data!" {
showAlert = true
}
}
}
if isRequestInProgress { //<-
ProgressView()
}
}
}
.alert(isPresented: $showAlert) {
Alert(title: Text("Tweet Sent"), message: Text("Your Tweet is sent! Your Tweet ID is shown in the field"), dismissButton: .default(Text("OK")))
}
}
}
func requestTest(completion: @escaping(String) -> ()) {
if let url = URL(string: "https://requestbin.net/r/ag4ipg7n") {
var request = URLRequest(url: url)
request.httpMethod = "POST"
request.setValue("application/x-www-form-urlencoded", forHTTPHeaderField: "Content-Type")
var components = URLComponents(url: url, resolvingAgainstBaseURL: false)!
components.queryItems = [ URLQueryItem(name: "TweetID", value: response),
URLQueryItem(name: "Status", value: tweetStatus)]
if let query = components.url!.query {
request.httpBody = Data(query.utf8)
}
self.isRequestInProgress = true //<-
let task = URLSession.shared.dataTask(with: request) { data, response, error in
//↓
defer {
DispatchQueue.main.async {
self.isRequestInProgress = false
}
}
if let data = data,
let apiResponse = String(data: data, encoding: .utf8) {
// IF Completed, these actions are shown below
completion(apiResponse)
self.showAlert = true
tweetStatus = ""
} else {
completion("No Data!")
}
}
task.resume()
}
}
}
OOPer
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I'm not sure how iOS handles that, but it seems the iOS App Icon resource with name AppIcon in Assets.xcassets is handled specially by iOS and you cannot access it from inside your app.
If you want to use it as Image("..."), you may need to create an Image Set resource with another name than AppIcon, and copy the same image into it.
Is there something I'm missing?
The code you have shown looks correct.
One possibility, have you started your project with StartingProject? (Included in the Project download link.)
You need Assets.xcassets to make the code work.
I would write it like this:
let p_vertexData = vertexData.withUnsafeBufferPointer {bufPtr in
Data(buffer: bufPtr)
}
Better send a bug report than asking why. Have you already sent one?
Is there any way to do this without Xcode or will I need a newer Mac?
As far as I tried till now, Swift Playgrounds 4 does not have an ability to make an app with Background Modes enabled.
You may need to get a newer Mac capable of running the latest Xcode, or else you may need to re-consider the functionalities of your app.
I'd like to build/sign/test an app on my own devices
You can build and test your apps on your devices if you have an Apple ID used as Developer account, paid or not.
The restriction is a bit stronger than paid membership, but it may not be a big issue when you just want to use your own device.
Hard to say something sure with just watching the screen shot. Can you show the code of your app including the root view?
Is it possible to add iPhone simulator there?
As far as I know, the answer is NO.
Swift Playgrounds 4 does not have a tool to explicitly test how your app looks like in each size of devices, nor it does not have an ability to run the app on actual iPhones.
No explanation is given as to why the context pointer was removed.
One possible reason may be that the block can capture the context pointer, so you have no need to get it from a parameter of callback function.
Have you checked this thread?
https://developer.apple.com/forums/thread/693841?answerId=693782022#693782022
Make sure you are an Account Holder, and visit the App Store Connect. (Not Apple Developer site.)
To utilize Combine well, you may need to know what are (or should be or can be) publisher. @State variables cannot be publishers without some additional code.
To make publishers easily, you can work with ObservableObject with @Published variables:
import SwiftUI
import Combine
class ValidateLogin {
let user: String
let pass: String
init(user: String, pass: String) {
self.user = user
self.pass = pass
}
func validateMe() -> Bool {
return user.count > 3 && pass.count > 3
}
}
class MyContent: ObservableObject {
@Published var userText: String = ""
@Published var passText: String = ""
}
struct ContentView: View {
@StateObject var content = MyContent()
@State var canSave: Bool = false
@State var contentSubscriber: AnyCancellable?
var body: some View {
ZStack {
VStack {
TextField("Username", text: $content.userText) {
}
SecureField("Password", text: $content.passText) {
}
}.padding(.horizontal, 20.0)
}.onAppear {
self.contentSubscriber = self.content.$userText
.combineLatest(content.$passText)
.sink {userText, passText in
let validateLogin = ValidateLogin(user: userText, pass: passText)
self.canSave = validateLogin.validateMe()
}
}
}
}
Depends on many things. How many files are there? How large is each file? How the data is organized as a text?
Visit Feedback Assistant to send a bug report to Apple.
All the lines were drawn in the proper place in my View. Please show the whole definition of the View to confirm that.